CA2537352A1 - Modular experimental gyroplane float system - Google Patents
Modular experimental gyroplane float system Download PDFInfo
- Publication number
- CA2537352A1 CA2537352A1 CA 2537352 CA2537352A CA2537352A1 CA 2537352 A1 CA2537352 A1 CA 2537352A1 CA 2537352 CA2537352 CA 2537352 CA 2537352 A CA2537352 A CA 2537352A CA 2537352 A1 CA2537352 A1 CA 2537352A1
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- CA
- Canada
- Prior art keywords
- gyroplane
- float
- experimental
- modular
- float system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/54—Floats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C2025/325—Alighting gear characterised by elements which contact the ground or similar surface specially adapted for helicopters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
Abstract
A lightweight modular floatation system designed to attach securely to the existing tricycle landing gear of any experimental aircraft. The float system is made up of three elongated sections, which are connected together to form a tri-hull shaped bottom surface. Each modular section of the embodiment of the float system is designed with pre-molded cavities within which the left, right and nose wheel will fit in their respective locations and be secured to the float.
A series of clamps will be employed to secure each wheel in place and subsequent release of same allows quick removal of float system. Integral pockets are established within the float's port and starboard sections to receive a telescopic support structure designed to provide a bipod support both fore and aft for the main rotor blade. As well pre-molded compartments are built into each float to facilitate storage items.
A series of clamps will be employed to secure each wheel in place and subsequent release of same allows quick removal of float system. Integral pockets are established within the float's port and starboard sections to receive a telescopic support structure designed to provide a bipod support both fore and aft for the main rotor blade. As well pre-molded compartments are built into each float to facilitate storage items.
Description
MODULAR EXPERIMENTAL GYROPLANE FLOAT SYSTEM
This invention provides a Modular Experimental Gyroplane Float System designed specifically for use on gyroplanes.
BACKGROUND OF THE INVENTION
There have been many differing designs of float systems enabling aircraft to operate off the water.
However, all of these previous inventions were not designed with the unique attributes of gyroplanes in mind. Currently manufactured aircraft floats can be adapted, with much effort and difficulty, to gyroplane use. However there are several negative aspects that arise when trying to fly a Gyroplane with conventional float systems, such as float submersion and difficulties in stationary autorotation.
Some of the previous float system designs are:
Cited documents: CA1239136ARNEY
Since the current aircraft floatation systems were designed for fixed wing aircraft, they were not created with the Gyroplane in mind. Thus there are common difficulties attributed to all of these inventions when trying to install them on gyroplanes. These difficulties are solved by this current application.
SUMMARY OF THE INVENTION
The purpose of this invention is to provide a floatation platform upon which an experimental homebuilt aircraft can be mounted without removal of its existing landing gear. To date there have not been any experimental aircraft floats designed to be the support platform for the gyroplane. In the aeronautics field of gyroplanes, there are inherent difficulties in mounting existing aircraft floats due to the flight characteristics of the gyroplane. The downward pressure exerted by the high mounted engine and push prop, leads to submersion of the front of the floats on taxiing for takeoff.
The auto-rotation effect upon the body of the aircraft prior to lift off is also an adverse effect from existing designs. Additionally the control of the rotor blades while taxiing has not been addressed with current aircraft floatation systems available today. There is also the difficulty of water spray damaging the blades of the push-prop when landing and taking off on water.
The Modular Experimental Gyroplane Float System attempts to improve or account for all current difficulties in mounting a gyroplane on existing float designs.
First of all, it is designed in a three section modular fashion to allow for easier transport of the rigid sections. Once assembled these sections provide a very wide and stable platform, which is important when mounting a floatation system. The platfoum more resembles a tri-hull boat, which provides complete protection for the push-prop blades while taking off or landing on water. There are also integral pockets built into the outer float sections designed to hold the main rotor blade telescopic support shafts. These support shafts provide stable control of the rotor blades while they are not in use. The interior of the sections can be filled with expandable marine foam to ensure no water can seep into the sections. With an amphibious steerable wheel system built into the outer SUMMARY OF THE INVENTION (continued) sections, it provides greater flexibility and control of the float system.
Additional features, including built-in storage compartments and dual water rudders, again add to the usefulness of the design. But the greatest innovation is that each float system can be made to a specific make and model of gyroplane to allow that model to taxi right up onto the float and simply clamp the existing wheel gear down to the float. This negates the need to spend long hours replacing existing ground landing gear with stiffening spars in order to mount any current conventional float system.
DETAILED DESCRIPTION OF THE INVENTION
The modular experimental gyroplane float system is described in six primary sections. The main structure and skeletal parts of the float system are indicated with an "A".
The wheel gear apparatus are indicated with a "B". The gyroplane rotor blades, rotor support shafts and additional accessories are indicated with a "C". The wheel clamps and safety clamps are indicated with a "D". The water rudder system is indicated with an "E". The rotor support brackets are indicated with an "F".
A-1 indicates the left, or port side, section of the modular float system.
A-2 indicates the middle section of the modular float system.
A-3 indicates the right, or starboard side, section of the modular float system.
A-4 indicates the elevated lip portion of A-2 designed to direct airflow over the body of the craft mounted on the modular float system.
A-5 indicates a built in pocket in the starboard fore section of A-3 designed to receive the front starboard telescopic rotor blade support shaft.
A-6 indicates the molded cavity in A-2, which holds the swivel bracket for the nose wheel.
A-7 indicates the swivel cradle in cavity A-6, which is designed to hold and secure the nose wheel.
A-7a indicates the swivel mechanism, which allows the nose wheel to turn as needed when attached to the cradle (A-7).
A-8 indicates the molded in channel in A-2 designed to direct the nose wheel into the cavity A-6.
A-9 indicates the joining seam between modular sections A-2 and A-3.
A-10 indicates the cavity designed to allow the starboard rear wheel to nestle into it on section A-3.
A-11 indicates the slot used to insert a lever to cam the taxiing rear wheel up or down in section A-3.
A-12 indicates the built in pocket in the starboard aft section of A-3 designed to receive the rear starboard telescopic rotor blade support shaft.
A-13 indicates a molded channel in A-3 designed to guide the starboard rear wheel into cavity A-10.
A-14 indicates a small wing shaped area molded into the starboard aft section of A-3 designed to provide ground effect lift to the rear of the modular float section.
A-15 indicates a slot through which the starboard retractable water rudder is allowed to move up and down through.
A-16 indicates a slot through which the port retractable water rudder is allowed to move up and down through.
A-17 indicates a molded channel in A-1 designed to guide the port rear wheel into cavity A-21.
A-18 indicates a small wing shaped area molded into the port aft section of A-1 designed to provide ground effect lift to the rear of the modular float section.
A-19 indicates the built in pocket in the port aft section of A-1 designed to receive the rear port telescopic rotor blade support shaft.
A-20 indicates the slot used to insert a lever to cam the taxiing rear wheel up or down in section A-1.
A-21 indicates the cavity designed to allow the port rear wheel to nestle into it on section A-1.
A-22 indicates a channel cavity designed to allow the main gear axle to rest in.
A-23 indicates a built in pocket in the port fore section of A-1 designed to receive the front port telescopic rotor blade support shaft.
A-24 indicates the joining seam between modular sections A-l and A-2.
A-25a indicates the storage compartment molded into section A-1.
A-25b indicates the storage compartment molded into section A-3.
A-26 indicates the compartment molded into section A-2 designed to hold a deep cycle battery.
A-27 indicates the device in the nose of section A-2, which doubles as a tie down hard point as well as a mount plate for an electric trolling motor.
A-27aa indicates the top surface of the plate section in a horizontal position.
A-27ab indicates the mounting plate A-27, in a vertical position.
A-27b indicates the anchoring bolt, which holds the mounting plate in its position and allows it to cam vertical.
A-27c indicates the hole through mounting plate A-27, through which a cable can pass to assist in loading and unloading of the Gyroplane from the float system.
A-27d indicates the side supports molded into section A-2, designed to support item A-27 in a horizontal position when not in use.
A-27e indicates the opening through section A-2, looking down from the top, when item A-27 is in a vertical position.
A-28 indicates the slot in the raised lip A-4, designed to allow a cable to pass through to aid in loading and unloading of the experimental aircraft on to the float system.
A-29a indicates the removable cover plate over the steer able rear wheel on the port side, section A-1.
A-29b indicates the removable cover plate over the steer able rear wheel on the starboard side, section A-3.
A-30a indicates a tie down hard point on the port side of section A-2.
This invention provides a Modular Experimental Gyroplane Float System designed specifically for use on gyroplanes.
BACKGROUND OF THE INVENTION
There have been many differing designs of float systems enabling aircraft to operate off the water.
However, all of these previous inventions were not designed with the unique attributes of gyroplanes in mind. Currently manufactured aircraft floats can be adapted, with much effort and difficulty, to gyroplane use. However there are several negative aspects that arise when trying to fly a Gyroplane with conventional float systems, such as float submersion and difficulties in stationary autorotation.
Some of the previous float system designs are:
Cited documents: CA1239136ARNEY
Since the current aircraft floatation systems were designed for fixed wing aircraft, they were not created with the Gyroplane in mind. Thus there are common difficulties attributed to all of these inventions when trying to install them on gyroplanes. These difficulties are solved by this current application.
SUMMARY OF THE INVENTION
The purpose of this invention is to provide a floatation platform upon which an experimental homebuilt aircraft can be mounted without removal of its existing landing gear. To date there have not been any experimental aircraft floats designed to be the support platform for the gyroplane. In the aeronautics field of gyroplanes, there are inherent difficulties in mounting existing aircraft floats due to the flight characteristics of the gyroplane. The downward pressure exerted by the high mounted engine and push prop, leads to submersion of the front of the floats on taxiing for takeoff.
The auto-rotation effect upon the body of the aircraft prior to lift off is also an adverse effect from existing designs. Additionally the control of the rotor blades while taxiing has not been addressed with current aircraft floatation systems available today. There is also the difficulty of water spray damaging the blades of the push-prop when landing and taking off on water.
The Modular Experimental Gyroplane Float System attempts to improve or account for all current difficulties in mounting a gyroplane on existing float designs.
First of all, it is designed in a three section modular fashion to allow for easier transport of the rigid sections. Once assembled these sections provide a very wide and stable platform, which is important when mounting a floatation system. The platfoum more resembles a tri-hull boat, which provides complete protection for the push-prop blades while taking off or landing on water. There are also integral pockets built into the outer float sections designed to hold the main rotor blade telescopic support shafts. These support shafts provide stable control of the rotor blades while they are not in use. The interior of the sections can be filled with expandable marine foam to ensure no water can seep into the sections. With an amphibious steerable wheel system built into the outer SUMMARY OF THE INVENTION (continued) sections, it provides greater flexibility and control of the float system.
Additional features, including built-in storage compartments and dual water rudders, again add to the usefulness of the design. But the greatest innovation is that each float system can be made to a specific make and model of gyroplane to allow that model to taxi right up onto the float and simply clamp the existing wheel gear down to the float. This negates the need to spend long hours replacing existing ground landing gear with stiffening spars in order to mount any current conventional float system.
DETAILED DESCRIPTION OF THE INVENTION
The modular experimental gyroplane float system is described in six primary sections. The main structure and skeletal parts of the float system are indicated with an "A".
The wheel gear apparatus are indicated with a "B". The gyroplane rotor blades, rotor support shafts and additional accessories are indicated with a "C". The wheel clamps and safety clamps are indicated with a "D". The water rudder system is indicated with an "E". The rotor support brackets are indicated with an "F".
A-1 indicates the left, or port side, section of the modular float system.
A-2 indicates the middle section of the modular float system.
A-3 indicates the right, or starboard side, section of the modular float system.
A-4 indicates the elevated lip portion of A-2 designed to direct airflow over the body of the craft mounted on the modular float system.
A-5 indicates a built in pocket in the starboard fore section of A-3 designed to receive the front starboard telescopic rotor blade support shaft.
A-6 indicates the molded cavity in A-2, which holds the swivel bracket for the nose wheel.
A-7 indicates the swivel cradle in cavity A-6, which is designed to hold and secure the nose wheel.
A-7a indicates the swivel mechanism, which allows the nose wheel to turn as needed when attached to the cradle (A-7).
A-8 indicates the molded in channel in A-2 designed to direct the nose wheel into the cavity A-6.
A-9 indicates the joining seam between modular sections A-2 and A-3.
A-10 indicates the cavity designed to allow the starboard rear wheel to nestle into it on section A-3.
A-11 indicates the slot used to insert a lever to cam the taxiing rear wheel up or down in section A-3.
A-12 indicates the built in pocket in the starboard aft section of A-3 designed to receive the rear starboard telescopic rotor blade support shaft.
A-13 indicates a molded channel in A-3 designed to guide the starboard rear wheel into cavity A-10.
A-14 indicates a small wing shaped area molded into the starboard aft section of A-3 designed to provide ground effect lift to the rear of the modular float section.
A-15 indicates a slot through which the starboard retractable water rudder is allowed to move up and down through.
A-16 indicates a slot through which the port retractable water rudder is allowed to move up and down through.
A-17 indicates a molded channel in A-1 designed to guide the port rear wheel into cavity A-21.
A-18 indicates a small wing shaped area molded into the port aft section of A-1 designed to provide ground effect lift to the rear of the modular float section.
A-19 indicates the built in pocket in the port aft section of A-1 designed to receive the rear port telescopic rotor blade support shaft.
A-20 indicates the slot used to insert a lever to cam the taxiing rear wheel up or down in section A-1.
A-21 indicates the cavity designed to allow the port rear wheel to nestle into it on section A-1.
A-22 indicates a channel cavity designed to allow the main gear axle to rest in.
A-23 indicates a built in pocket in the port fore section of A-1 designed to receive the front port telescopic rotor blade support shaft.
A-24 indicates the joining seam between modular sections A-l and A-2.
A-25a indicates the storage compartment molded into section A-1.
A-25b indicates the storage compartment molded into section A-3.
A-26 indicates the compartment molded into section A-2 designed to hold a deep cycle battery.
A-27 indicates the device in the nose of section A-2, which doubles as a tie down hard point as well as a mount plate for an electric trolling motor.
A-27aa indicates the top surface of the plate section in a horizontal position.
A-27ab indicates the mounting plate A-27, in a vertical position.
A-27b indicates the anchoring bolt, which holds the mounting plate in its position and allows it to cam vertical.
A-27c indicates the hole through mounting plate A-27, through which a cable can pass to assist in loading and unloading of the Gyroplane from the float system.
A-27d indicates the side supports molded into section A-2, designed to support item A-27 in a horizontal position when not in use.
A-27e indicates the opening through section A-2, looking down from the top, when item A-27 is in a vertical position.
A-28 indicates the slot in the raised lip A-4, designed to allow a cable to pass through to aid in loading and unloading of the experimental aircraft on to the float system.
A-29a indicates the removable cover plate over the steer able rear wheel on the port side, section A-1.
A-29b indicates the removable cover plate over the steer able rear wheel on the starboard side, section A-3.
A-30a indicates a tie down hard point on the port side of section A-2.
A-30a indicates a tie down hard point on the starboard side of section A-2.
A-31 a indicates the built in spar member in the fore section of A-1.
A-31b indicates the built in spar member in the fore section of A-3.
A-32a indicates a representation of the internal skeleton within section A-1.
A-32b indicates a representation of the internal skeleton within section A-3 A-32c indicates a representation of the internal skeleton within section A-2 A-33a indicates the built in spar member in the aft section of A-1.
A-33b indicates the built in spar member in the aft section of A-3.
A-34 indicates a representation of the bracing for the nose wheel pocket in section A-2.
A-35 indicates a representation of the bottom plate to which the nose wheel cradle is attached in section A-2.
A-36a indicates the threaded eyelet on section A-2 designed to hold the swivel end of the safety tie down cable for the port side, wheel gear.
A-36b indicates the threaded eyelet on section A-2 designed to hold the swivel end of the safety tie down cable for the starboard side, wheel gear.
A-37a indicates the fixed hook on section A-2 designed to receive the eyelet of a turnbuckle when securing the safety cable for the port side, wheel gear.
A-37b indicates the fixed hook on section A-2 designed to receive the eyelet of a turnbuckle when securing the safety cable for the starboard side, wheel gear.
A-38 indicates a representation of the shorter threaded rod with eyebolt that is designed to thread into items A-31a & A-31b at one end and attach to a bracket on the front of the Gyroplane, which is attached to the keel member.
A-39 indicates the longer threaded rod with eyebolt designed to thread into items A-33a & A-33b at one end and attach to a bracket on the rear of the Gyroplane, which is attached to the keel member.
A-40 is a representation of an electric trolling motor mounted on item #A-27.
B-1 indicates the upper portion of the main swivel shaft to which the steering arms are attached.
B-2 indicates the main bearing on the swivel shaft, which allows rotation of the wheel.
B-3 indicates the lower bearing on the swivel shaft, which allows rotation of the wheel.
B-4 indicates the attachment on the main shaft, which acts as a stop to the camming of the wheel.
B-5 indicates the socket within which a lever is inserted to allow torque to be applied to the Gaming action of the wheel to bring it into contact with the ground.
B-6 indicates the axle shaft used to hold the wheel to the Gaming mechanism.
A-31 a indicates the built in spar member in the fore section of A-1.
A-31b indicates the built in spar member in the fore section of A-3.
A-32a indicates a representation of the internal skeleton within section A-1.
A-32b indicates a representation of the internal skeleton within section A-3 A-32c indicates a representation of the internal skeleton within section A-2 A-33a indicates the built in spar member in the aft section of A-1.
A-33b indicates the built in spar member in the aft section of A-3.
A-34 indicates a representation of the bracing for the nose wheel pocket in section A-2.
A-35 indicates a representation of the bottom plate to which the nose wheel cradle is attached in section A-2.
A-36a indicates the threaded eyelet on section A-2 designed to hold the swivel end of the safety tie down cable for the port side, wheel gear.
A-36b indicates the threaded eyelet on section A-2 designed to hold the swivel end of the safety tie down cable for the starboard side, wheel gear.
A-37a indicates the fixed hook on section A-2 designed to receive the eyelet of a turnbuckle when securing the safety cable for the port side, wheel gear.
A-37b indicates the fixed hook on section A-2 designed to receive the eyelet of a turnbuckle when securing the safety cable for the starboard side, wheel gear.
A-38 indicates a representation of the shorter threaded rod with eyebolt that is designed to thread into items A-31a & A-31b at one end and attach to a bracket on the front of the Gyroplane, which is attached to the keel member.
A-39 indicates the longer threaded rod with eyebolt designed to thread into items A-33a & A-33b at one end and attach to a bracket on the rear of the Gyroplane, which is attached to the keel member.
A-40 is a representation of an electric trolling motor mounted on item #A-27.
B-1 indicates the upper portion of the main swivel shaft to which the steering arms are attached.
B-2 indicates the main bearing on the swivel shaft, which allows rotation of the wheel.
B-3 indicates the lower bearing on the swivel shaft, which allows rotation of the wheel.
B-4 indicates the attachment on the main shaft, which acts as a stop to the camming of the wheel.
B-5 indicates the socket within which a lever is inserted to allow torque to be applied to the Gaming action of the wheel to bring it into contact with the ground.
B-6 indicates the axle shaft used to hold the wheel to the Gaming mechanism.
B-7 indicates the main support-bearing wheel on the caroming mechanism.
B-8 indicates the main support arm, which connects the wheel axle to the swivel shaft.
B-9 indicates the cavity into which the main support wheel moves up into when not in use.
B-10 indicates the rotating pin, which allows the caroming action to take place.
B-11 indicates the lower portion of the swivel shaft to which the caroming mechanism is attached.
B-12 indicates the steering arms attached to item B-1 to which cables attach to control the direction of the wheel.
B-13 indicates the springs used to put tension on the wheel once it is caromed into place.
B-14 indicates the support bracket, which contacts B-4 to inhibit the caroming movement of the mechanism.
B-15 indicates the cover plate on the cavity B-9, which holds the steerable main wheel B-7.
B-16 indicates the cables attached to the steering arms B-12, which allow the main wheels to be turned as desired.
B-17 indicates the cavity within which the front wheel on sections A-1 and A-3 reside.
B-18 indicates the front wheel located in sections A-1 and A-3 in cavities B-17.
C-1 indicates the seat cushion from the auxiliary deck chairs, mounted on the swivel C-3.
C-2 indicates the fold down backs of the auxiliary deck chairs.
C-3 indicates the swivel attachment on the bottom of the deck chairs, which fits into chair shaft C-5.
C-4 indicates the bracket that rests on the deck of the float holding the deck chair in place.
C-5 indicates the short shaft attachment between the deck of the float and the swivel attachment from the deck chair.
C-6 indicates the rubber-padded bracket holding the rotor blade and which is attached to the telescopic rotor blade support shaft C-9 on the front of the modular float.
C-7 indicates the main rotor blade.
C-8 indicates the rubber-padded bracket holding the rotor blade and which is attached to the telescopic rotor blade support shaft C-11 on the rear of the modular float.
C-9a indicates the port telescopic rotor blade support shaft mounted into pocket A-24 at the base and attached to the rubber-padded rotor support bracket C-6.
C-9b indicates the starboard telescopic rotor blade support shaft mounted into pocket A-5 at the base and attached to the rubber-padded rotor support bracket C-6.
C-10 indicates the main cabin and body of the experimental aircraft.
C-l la indicates the port telescopic rotor blade support shaft mounted into pocket A-19 at the base and attached to the rubber-padded bracket C-8.
B-8 indicates the main support arm, which connects the wheel axle to the swivel shaft.
B-9 indicates the cavity into which the main support wheel moves up into when not in use.
B-10 indicates the rotating pin, which allows the caroming action to take place.
B-11 indicates the lower portion of the swivel shaft to which the caroming mechanism is attached.
B-12 indicates the steering arms attached to item B-1 to which cables attach to control the direction of the wheel.
B-13 indicates the springs used to put tension on the wheel once it is caromed into place.
B-14 indicates the support bracket, which contacts B-4 to inhibit the caroming movement of the mechanism.
B-15 indicates the cover plate on the cavity B-9, which holds the steerable main wheel B-7.
B-16 indicates the cables attached to the steering arms B-12, which allow the main wheels to be turned as desired.
B-17 indicates the cavity within which the front wheel on sections A-1 and A-3 reside.
B-18 indicates the front wheel located in sections A-1 and A-3 in cavities B-17.
C-1 indicates the seat cushion from the auxiliary deck chairs, mounted on the swivel C-3.
C-2 indicates the fold down backs of the auxiliary deck chairs.
C-3 indicates the swivel attachment on the bottom of the deck chairs, which fits into chair shaft C-5.
C-4 indicates the bracket that rests on the deck of the float holding the deck chair in place.
C-5 indicates the short shaft attachment between the deck of the float and the swivel attachment from the deck chair.
C-6 indicates the rubber-padded bracket holding the rotor blade and which is attached to the telescopic rotor blade support shaft C-9 on the front of the modular float.
C-7 indicates the main rotor blade.
C-8 indicates the rubber-padded bracket holding the rotor blade and which is attached to the telescopic rotor blade support shaft C-11 on the rear of the modular float.
C-9a indicates the port telescopic rotor blade support shaft mounted into pocket A-24 at the base and attached to the rubber-padded rotor support bracket C-6.
C-9b indicates the starboard telescopic rotor blade support shaft mounted into pocket A-5 at the base and attached to the rubber-padded rotor support bracket C-6.
C-10 indicates the main cabin and body of the experimental aircraft.
C-l la indicates the port telescopic rotor blade support shaft mounted into pocket A-19 at the base and attached to the rubber-padded bracket C-8.
C-l lb indicates the starboard telescopic rotor blade support shaft mounted into pocket A-12 at the base and attached to the rubber-padded bracket C-8.
C-12a indicates the port main wheel of the experimental aircraft.
C-12b indicates the starboard main wheel of the experimental aircraft.
D-1 indicates the swivel cradle in pocket A-6 on section A-2, which is designed to hold the nose wheel securely.
D-2 indicates the bracket on the front of item D-l, designed to receive a heavy-duty web strap in securing the nose wheel to cradle D-1.
D-3 indicates the yoke fitting, which holds the nose wheel axle firmly onto the swivel cradle.
D-4a & D-4b indicates the brackets on either side of the rear of the nose wheel cradle D-1, designed to receive the other end of the heavy-duty web strap in securing the nose wheel to cradle D-1.
D-5 indicates the upper bearing on the nose wheel cradle D-1.
D-6 indicates the short shaft joining the upper and lower bearings on the nose wheel cradle D-1.
D-7 indicates the lower bearing on the nose wheel cradle D-1.
D-8 indicates the bottom mounting plate to which the swivel cradle D-1 apparatus is attached.
D-9 indicates the wheel bracket, made from high strength spring steel, which cams over top of the main wheel gear of the gyro to secure them in to pockets A-10 & A-21.
D-10 indicates the cogs built into item D-9 to allow for various sizes of wheel gear to be held securely.
D-11 indicates the hinge located at the front of item D-9 that allows the easy removal of the unit from the wheel.
D-12 indicates the tab with two holes, mounted on either side of item D-11, designed to receive a clevis pin in securing the locking bar in place.
D-13 indicates the bolt at the end of item D-1 designed to provide a secure anchor point for the cables in securing the wheel bracket in place.
D-14a&b indicates the ears on either side of the locking bar, which provide a secure anchor point for the cables in tightening down item D-1.
D-15 indicates the locking bar designed to provide a mechanical advantage in tightening down item D-1 to the wheel.
D-16a & D-16b indicates the two steel wire rope cables attached to item D-13 at one end and item D-16a at the other end utilized in securing the wheel.
D-17 indicates the bolt, which passes through the receiving or rear support bracket of the mounting system. The cables D-16a & D-16b pass around item D-17 as an anchor point.
D-18 indicates the rear bracket on either side of the wheel pocket through which bolt D-17 passes.
D-19a indicates the rear mounting shafts, which anchors the brackets D-18 to the internal skeleton of the float section.
D-19b indicates the front mounting shafts, which anchors the brackets D-18 to the internal skeleton of the float section.
D-20 indicates the surface level of the float section.
D-21 indicates the shape of the pocket sections A-10 & A-21, on either side of the wheel.
D-22 indicates the nut used to secure bolt D-17 in place.
D-23 indicates the rear shaft which supports hook A-37a & A-37b.
D-24 indicates the threaded shaft supporting the eyelet A-36a & A-36b.
D-25 indicates the swivel attachment, which secures the cable to the eyelets A-36a & A-36b.
D-26 is a representation of a section of cable used to provide a safety tie down for the strut system.
D-27 is a turnbuckle designed to tighten and secure the cable to the float.
E-la indicates the rudder cable utilized to lift and lower the water rudder apparatus, shown in a rudder activated position.
E-lb indicates the rudder cable utilized to lift and lower the water rudder apparatus shown in a rudder inactive position.
E-2 indicates the top pulley on the steering control shaft through which the rudder cable moves.
E-3 indicates the eyelet on the steering arm used to attach the directional control cables.
E-4 indicates the steering arm attached to the control shaft.
E-5 indicates the pulley attached to the upper rudder shaft (E-6).
E-6 indicates the upper rudder shaft, which assists in raising and lowering the apparatus.
E-7 indicates the steering control shaft, which is fixed in place so as to not move up and down but can rotate or turn from side to side.
E-8a indicates the hinge attachments joining the lower rudder shaft to the upper rudder shaft, in its down or steerable position.
E-8b indicates the hinge attachments joining the lower rudder shaft to the upper rudder shaft, in its up or non-steerable position.
E-9 indicates the lower rudder shaft attached to the hinge at one end and clamped to the rudder at the other end.
E-l0a indicates the water rudder positioned in a down or activated condition.
E-lOb indicates the water rudder positioned in an up or inactive condition.
E-11 shows the connecting point of the rudder cable to the rudder to allow proper leverage to the apparatus.
E-12 indicates the inverted channels molded into the bottom of the middle float section to allow side-to-side movement of the upper edge of the water rudders.
E-13 indicates the locking pins, which hold the removable portion of the water rudder in position.
E-14 indicates the pocket attached to E-9, which contains the removable portion of the water rudder.
F-la & F-lb indicates the high-density polymer or machined aluminum blocks used to give structural support to the swivel eyelets and the upper rubber rotor blade brackets.
F-2a & F-2b indicates the washer on top of the rubber bracket through which the tightening bolt passes.
F-3 indicates the rubber pad of the rotor bracket, which is placed on top of the main rotor blade.
F-4a & F-4b indicates the swivel eyelets used to secure the top section of the telescopic rotor support shaft to the rotor blade bracket.
F-Sa & F-Sb indicates the low portion of the high-density polymer or machined aluminum blocks, which provide structural support to the rubber rotor blade support bracket.
F-6 indicates the lower rubber pad of the rotor bracket used to secure the main rotor blade.
F-7a & F-7b indicates the bolt used to secure the top half of the rotor bracket to the bottom half of the rotor bracket.
F-8a & F-8b indicates the castle nuts used to thread onto the securing bolts.
F-9a & F-9b indicates the locking safety pins used to ensure the castle nuts do not work loose.
F-10 shows a cross section of a main rotor blade.
F-l0a shows a top view of a main rotor blade mounted in the rotor blade bracket.
F-11 shows a clevis pin used to attach the telescopic rotor blade support shaft to the rotor blade support bracket.
F-12 indicates the top section of the telescopic rotor blade support shaft.
DESCRIPTION OF DRAWINGS
Figure 1. Represents a top view of the assembled float sections, indicating all visible surface features.
Figure 2. Represents a frontal view of the hull when all three sections are assembled.
Figure 3. Represents the depiction of the port side rear wheel shown from a rear end view.
Figure 4. Represents a side view of a rear wheel with illustrated caroming action.
Figure 5. Show the top cover plate over the port rear wheel.
Figure 6. Shows a view from the top of the rear wheel in an upright, activated position and in a retracted, non-activated position.
Figure 7. Represents a side view of an outer float section showing all compartments molded into the interior of the floats.
Figure 8. Represents a side view of the middle float section showing the compartments molded into the interior of the floats.
Figure 9. A characterization of the foldable revolving deck chairs mounted into the pockets designed to hold the telescopic rotor blade support shafts.
Figure 10. Shows a side view of the entire float apparatus with no accessories attached.
Figure 11. Shows a side view example of a gyroplane mounted on the float system with rotor blade support shafts in place.
Figure 12. Shows a frontal view example of a gyroplane mounted on the float system with rotor blade support shafts in place.
Figure 13. Shows a top view of the nose wheel cradle.
Figure 14. Shows a side view of the nose wheel cradle and the lower bearings to allow normal steering movement of the cradle.
Figure 15. Shows a side view of the main landing gear wheel clamps and locking bar.
Figure 16. Shows an end view of the main wheel landing gear positioned in the pocket designed into the outer float section.
Figure 17. Shows a side view of the main landing gear as in figure #15, but locked down in position by the bar.
Figure 18. Shows an end view of the main landing gear, once it is secured in position by the wheel clamp.
Figure 19. Shows the position of the strut safety hook, in relation to the main landing gear, secured to the float.
Figure 20. Shows a representation of the threaded eyelet, swivel, cable and turnbuckle, as well as the safety hook designed to secure the axle strut.
Figure 21. Shows a side view of a water rudder in a down or activated position.
Figure 22. Shows a side view of a water rudder in an up or inactive position.
Figure 23. Shows a rear end view of the float design, indicating the water rudders, one up and one down, plus all molded in channels.
Figure 24. Shows a top view of the assembled modular float sections indicating internal structures.
Figure 25. Shows a top view of the motor mount designed into the nose of the middle float section, when not in use.
Figure 26. Shows a top view of the motor mount designed into the nose of the middle float section, in position to receive an electric trolling motor.
Figure 27. Shows the threaded spar sections used to connect the built in spar sections A-31 a, A-31 b and A-33a, A-33b to the frame of the gyroplane.
Figure 28. Shows a side view of the movable action of the motor mount plate in the nose of the middle section.
Figure 29. Shows an electric trolling motor mounted on the middle float section.
Figure 30. Shows an end view from the front of the motor mount in a down or receptive position for a trolling motor.
Figure 31. Shows an end view of the rotor blade clamp, which holds the main rotor blade securely attached to the telescopic rotor blade support shafts.
Figure 32. Shows a top view of the rotor blade clamp and securing swivel eyelets.
C-12a indicates the port main wheel of the experimental aircraft.
C-12b indicates the starboard main wheel of the experimental aircraft.
D-1 indicates the swivel cradle in pocket A-6 on section A-2, which is designed to hold the nose wheel securely.
D-2 indicates the bracket on the front of item D-l, designed to receive a heavy-duty web strap in securing the nose wheel to cradle D-1.
D-3 indicates the yoke fitting, which holds the nose wheel axle firmly onto the swivel cradle.
D-4a & D-4b indicates the brackets on either side of the rear of the nose wheel cradle D-1, designed to receive the other end of the heavy-duty web strap in securing the nose wheel to cradle D-1.
D-5 indicates the upper bearing on the nose wheel cradle D-1.
D-6 indicates the short shaft joining the upper and lower bearings on the nose wheel cradle D-1.
D-7 indicates the lower bearing on the nose wheel cradle D-1.
D-8 indicates the bottom mounting plate to which the swivel cradle D-1 apparatus is attached.
D-9 indicates the wheel bracket, made from high strength spring steel, which cams over top of the main wheel gear of the gyro to secure them in to pockets A-10 & A-21.
D-10 indicates the cogs built into item D-9 to allow for various sizes of wheel gear to be held securely.
D-11 indicates the hinge located at the front of item D-9 that allows the easy removal of the unit from the wheel.
D-12 indicates the tab with two holes, mounted on either side of item D-11, designed to receive a clevis pin in securing the locking bar in place.
D-13 indicates the bolt at the end of item D-1 designed to provide a secure anchor point for the cables in securing the wheel bracket in place.
D-14a&b indicates the ears on either side of the locking bar, which provide a secure anchor point for the cables in tightening down item D-1.
D-15 indicates the locking bar designed to provide a mechanical advantage in tightening down item D-1 to the wheel.
D-16a & D-16b indicates the two steel wire rope cables attached to item D-13 at one end and item D-16a at the other end utilized in securing the wheel.
D-17 indicates the bolt, which passes through the receiving or rear support bracket of the mounting system. The cables D-16a & D-16b pass around item D-17 as an anchor point.
D-18 indicates the rear bracket on either side of the wheel pocket through which bolt D-17 passes.
D-19a indicates the rear mounting shafts, which anchors the brackets D-18 to the internal skeleton of the float section.
D-19b indicates the front mounting shafts, which anchors the brackets D-18 to the internal skeleton of the float section.
D-20 indicates the surface level of the float section.
D-21 indicates the shape of the pocket sections A-10 & A-21, on either side of the wheel.
D-22 indicates the nut used to secure bolt D-17 in place.
D-23 indicates the rear shaft which supports hook A-37a & A-37b.
D-24 indicates the threaded shaft supporting the eyelet A-36a & A-36b.
D-25 indicates the swivel attachment, which secures the cable to the eyelets A-36a & A-36b.
D-26 is a representation of a section of cable used to provide a safety tie down for the strut system.
D-27 is a turnbuckle designed to tighten and secure the cable to the float.
E-la indicates the rudder cable utilized to lift and lower the water rudder apparatus, shown in a rudder activated position.
E-lb indicates the rudder cable utilized to lift and lower the water rudder apparatus shown in a rudder inactive position.
E-2 indicates the top pulley on the steering control shaft through which the rudder cable moves.
E-3 indicates the eyelet on the steering arm used to attach the directional control cables.
E-4 indicates the steering arm attached to the control shaft.
E-5 indicates the pulley attached to the upper rudder shaft (E-6).
E-6 indicates the upper rudder shaft, which assists in raising and lowering the apparatus.
E-7 indicates the steering control shaft, which is fixed in place so as to not move up and down but can rotate or turn from side to side.
E-8a indicates the hinge attachments joining the lower rudder shaft to the upper rudder shaft, in its down or steerable position.
E-8b indicates the hinge attachments joining the lower rudder shaft to the upper rudder shaft, in its up or non-steerable position.
E-9 indicates the lower rudder shaft attached to the hinge at one end and clamped to the rudder at the other end.
E-l0a indicates the water rudder positioned in a down or activated condition.
E-lOb indicates the water rudder positioned in an up or inactive condition.
E-11 shows the connecting point of the rudder cable to the rudder to allow proper leverage to the apparatus.
E-12 indicates the inverted channels molded into the bottom of the middle float section to allow side-to-side movement of the upper edge of the water rudders.
E-13 indicates the locking pins, which hold the removable portion of the water rudder in position.
E-14 indicates the pocket attached to E-9, which contains the removable portion of the water rudder.
F-la & F-lb indicates the high-density polymer or machined aluminum blocks used to give structural support to the swivel eyelets and the upper rubber rotor blade brackets.
F-2a & F-2b indicates the washer on top of the rubber bracket through which the tightening bolt passes.
F-3 indicates the rubber pad of the rotor bracket, which is placed on top of the main rotor blade.
F-4a & F-4b indicates the swivel eyelets used to secure the top section of the telescopic rotor support shaft to the rotor blade bracket.
F-Sa & F-Sb indicates the low portion of the high-density polymer or machined aluminum blocks, which provide structural support to the rubber rotor blade support bracket.
F-6 indicates the lower rubber pad of the rotor bracket used to secure the main rotor blade.
F-7a & F-7b indicates the bolt used to secure the top half of the rotor bracket to the bottom half of the rotor bracket.
F-8a & F-8b indicates the castle nuts used to thread onto the securing bolts.
F-9a & F-9b indicates the locking safety pins used to ensure the castle nuts do not work loose.
F-10 shows a cross section of a main rotor blade.
F-l0a shows a top view of a main rotor blade mounted in the rotor blade bracket.
F-11 shows a clevis pin used to attach the telescopic rotor blade support shaft to the rotor blade support bracket.
F-12 indicates the top section of the telescopic rotor blade support shaft.
DESCRIPTION OF DRAWINGS
Figure 1. Represents a top view of the assembled float sections, indicating all visible surface features.
Figure 2. Represents a frontal view of the hull when all three sections are assembled.
Figure 3. Represents the depiction of the port side rear wheel shown from a rear end view.
Figure 4. Represents a side view of a rear wheel with illustrated caroming action.
Figure 5. Show the top cover plate over the port rear wheel.
Figure 6. Shows a view from the top of the rear wheel in an upright, activated position and in a retracted, non-activated position.
Figure 7. Represents a side view of an outer float section showing all compartments molded into the interior of the floats.
Figure 8. Represents a side view of the middle float section showing the compartments molded into the interior of the floats.
Figure 9. A characterization of the foldable revolving deck chairs mounted into the pockets designed to hold the telescopic rotor blade support shafts.
Figure 10. Shows a side view of the entire float apparatus with no accessories attached.
Figure 11. Shows a side view example of a gyroplane mounted on the float system with rotor blade support shafts in place.
Figure 12. Shows a frontal view example of a gyroplane mounted on the float system with rotor blade support shafts in place.
Figure 13. Shows a top view of the nose wheel cradle.
Figure 14. Shows a side view of the nose wheel cradle and the lower bearings to allow normal steering movement of the cradle.
Figure 15. Shows a side view of the main landing gear wheel clamps and locking bar.
Figure 16. Shows an end view of the main wheel landing gear positioned in the pocket designed into the outer float section.
Figure 17. Shows a side view of the main landing gear as in figure #15, but locked down in position by the bar.
Figure 18. Shows an end view of the main landing gear, once it is secured in position by the wheel clamp.
Figure 19. Shows the position of the strut safety hook, in relation to the main landing gear, secured to the float.
Figure 20. Shows a representation of the threaded eyelet, swivel, cable and turnbuckle, as well as the safety hook designed to secure the axle strut.
Figure 21. Shows a side view of a water rudder in a down or activated position.
Figure 22. Shows a side view of a water rudder in an up or inactive position.
Figure 23. Shows a rear end view of the float design, indicating the water rudders, one up and one down, plus all molded in channels.
Figure 24. Shows a top view of the assembled modular float sections indicating internal structures.
Figure 25. Shows a top view of the motor mount designed into the nose of the middle float section, when not in use.
Figure 26. Shows a top view of the motor mount designed into the nose of the middle float section, in position to receive an electric trolling motor.
Figure 27. Shows the threaded spar sections used to connect the built in spar sections A-31 a, A-31 b and A-33a, A-33b to the frame of the gyroplane.
Figure 28. Shows a side view of the movable action of the motor mount plate in the nose of the middle section.
Figure 29. Shows an electric trolling motor mounted on the middle float section.
Figure 30. Shows an end view from the front of the motor mount in a down or receptive position for a trolling motor.
Figure 31. Shows an end view of the rotor blade clamp, which holds the main rotor blade securely attached to the telescopic rotor blade support shafts.
Figure 32. Shows a top view of the rotor blade clamp and securing swivel eyelets.
Claims (30)
1. I claim a Modular Experimental Gyroplane Float System comprised of three main sections joined together to form one continuous tri-hull shaped floatation surface.
2. I claim a Modular Experimental Gyroplane Float System designed to allow an experimental aircraft with tricycle wheel gear to be mounted on the modular float system without removal of its existing landing gear.
3. I claim a Modular Experimental Gyroplane Float System as in claim #1 with an outer shell constructed of a high density, highly resilient lightweight material.
4. I claim a Modular Experimental Gyroplane Float System comprised of an internal skeletal structure of lightweight structural tubing to provide additional rigidity to each of three modular sections.
5. I claim a Modular Experimental Gyroplane Float System as in claim #1 having three float sections joined together by two seams, which are set at opposing angles and run the full length of the float. Creating a middle float section with a wider top surface and a smaller keel surface.
6. I claim a Modular Experimental Gyroplane Float System as in claim #5 utilizing stainless steel bolts to connect the adjoining seams together spaced at three foot intervals with top bolt positioned within the top 2" of the seam and the lower bolt correspondingly positioned within 2" of the bottom of the seam.
7. I claim a Modular Experimental Gyroplane Float System having two molded in compartments positioned in the front half of each of the two outer float sections designed as storage compartments and having a lockable water tight cover.
8. I claim a Modular Experimental Gyroplane Float System having a compartment molded into the center section, positioned to receive the nose wheel of the experimental aircraft.
9. I claim a Modular Experimental Gyroplane Float System having a compartment molded into the outer sections, positioned to receive the corresponding main wheels of the experimental aircraft.
10. I claim a Modular Experimental Gyroplane Float System having a cradle positioned in the center nose wheel compartment designed to hold the nose wheel firmly with tension straps.
11. I claim a Modular Experimental Gyroplane Float System as in claim #10 having a nose wheel cradle designed to pivot on a bearing system to allow the nose wheel to be turned as needed when operating the standard foot pedals within the experimental aircraft.
12. I claim a Modular Experimental Gyroplane Float System having a cavity molded into the outer two sections of the float designed to enclose a steerable main wheel in each section.
13. I claim a Modular Experimental Gyroplane Float System having a steerable rear main wheel mechanism, constructed of high strength aluminum framing, designed to allow the wheel to be raised up into the cavity or cammed down to make contact with the ground surface for taxiing the float system while the experimental aircraft is securely mounted to the floats.
14. I claim a Modular Experimental Gyroplane Float System having a cavity molded into the bottom of the outer float sections just back of the forward prow line, designed to hold the bow wheel.
15. I claim a Modular Experimental Gyroplane Float System having a wheel positioned as to slightly protrudes below the bottom of the outer float sections approximately '/ the diameter of the wheel to provide a rolling surface while taxiing the floats with the experimental aircraft mounted on them.
16. I claim a Modular Experimental Gyroplane Float System having a plurality of bracing spars composed of high strength structural aluminum, built into the outer sections of the float system both fore and aft, designed to receive a connecting spar to stabilize the float system to the gyroplane.
17. I claim a Modular Experimental Gyroplane Float System as in claim #16 having a plurality of connecting spars designed to thread into the four built-in spars at one end and connect to the gyroplane at the other end through an eyelet and bolt configuration.
18. I claim a Modular Experimental Gyroplane Float System having two slots molded into the rear portion of the center modular section to allow water rudders to be raised and lowered through them.
19. I claim a Modular Experimental Gyroplane Float System having a removable water rudder composed of high-density polymer material.
20. I claim a Modular Experimental Gyroplane Float System having a water rudder activation mechanism, which allows the rudder to pass through the float body as they are lowered to make contact with the water.
21. I claim a Modular Experimental Gyroplane Float System having a rotor blade support shaft pocket imbedded in the front portion of each outer float section. The pocket is reinforced with a square sleeve made from high strength aluminum or similar material of a sufficient size to accommodate the lower portion of the rotor blade support shaft.
22. I claim a Modular Experimental Gyroplane Float System having a rotor blade support shaft pocket imbedded in the rear portion of each outer float section. The pocket is reinforced with a square sleeve made from high strength aluminum or similar material of a sufficient size and depth to accommodate the lower end of the telescopic rotor blade support shaft.
23. I claim a Modular Experimental Gyroplane Float System having a plurality of telescopic shafts designed to fit into to four rotor blade support shaft pockets. Each telescopic shaft attaches securely to the flexible rotor blade support bracket.
24. I claim a Modular Experimental Gyroplane Float System having a rotor blade support bracket designed to attach to the telescopic shafts which are utilized to support the main rotor blade, holding it securely while not in use.
25. I claim a Modular Experimental Gyroplane Float System having a rotor bracket constructed substantially of two '/2" by 5" by 12" rectangles of fiber reinforced flexible rubber material, with a structural reinforcing of '/2" thick high-density polymer, aluminum or similar block material.
26. I claim a Modular Experimental Gyroplane Float System having an inverted indentation molded into the bottom of the middle float section creating a channel of sufficient width to allow the side-to-side movement of the upper edge of the water rudder as illustrated in figure #23.
27. I claim a Modular Experimental Gyroplane Float System having a main wheel clamp comprised of a semi-circle of high strength spring steel, and designed to fit over the top of the wheel and securing in place.
28. I claim a Modular Experimental Gyroplane Float System with a main wheel clamp fitted with a series of cogs on the upper surface designed to act as an anchor point for the torque bar to provide downward tension to the wheel clamp.
29. I claim a Modular Experimental Gyroplane Float System, which utilizes a double steel cable system and torque bar to apply tension on the wheel clamp to hold the float securely to the gyroplane main landing gear.
30. I claim a Modular Experimental Gyroplane Float System having a strut safety cable mechanism designed to secure the axle strut to the float utilizing a threaded eyelet and a turnbuckle to provide tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2537352 CA2537352A1 (en) | 2006-02-20 | 2006-02-20 | Modular experimental gyroplane float system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2537352 CA2537352A1 (en) | 2006-02-20 | 2006-02-20 | Modular experimental gyroplane float system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2537352A1 true CA2537352A1 (en) | 2006-05-17 |
Family
ID=36406190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2537352 Abandoned CA2537352A1 (en) | 2006-02-20 | 2006-02-20 | Modular experimental gyroplane float system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2537352A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2440320A (en) * | 2006-07-21 | 2008-01-30 | Norman Frank Surplus | Amphibious gyroplane |
| US20140339359A1 (en) * | 2013-05-15 | 2014-11-20 | Piotr JEUTÉ | Float for an aircraft |
| CN113650805A (en) * | 2021-07-30 | 2021-11-16 | 中国特种飞行器研究所 | Device and method for testing water surface floating characteristic model of rotor type airplane |
-
2006
- 2006-02-20 CA CA 2537352 patent/CA2537352A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2440320A (en) * | 2006-07-21 | 2008-01-30 | Norman Frank Surplus | Amphibious gyroplane |
| US20140339359A1 (en) * | 2013-05-15 | 2014-11-20 | Piotr JEUTÉ | Float for an aircraft |
| CN113650805A (en) * | 2021-07-30 | 2021-11-16 | 中国特种飞行器研究所 | Device and method for testing water surface floating characteristic model of rotor type airplane |
| CN113650805B (en) * | 2021-07-30 | 2024-04-09 | 中国特种飞行器研究所 | Device and method for testing water surface floating characteristic model of rotor wing type aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |