GB2484649A

GB2484649A - Model air-boat

Info

Publication number: GB2484649A
Application number: GB0918030A
Authority: GB
Inventors: Wynand Van Rensburg
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-12
Filing date: 2009-10-14
Publication date: 2012-04-25
Also published as: GB0910120D0; GB0918030D0; GB0917035D0

Abstract

A model toy air-boat is adapted for remote control operation on the water. The toy includes a mono centerline hull, wherein the upper surface is substantially planar and curved to the front area of the nose 9. The hull has a substantially lower planar surfaces 29A, 29B and 32 curving inwardly and upwardly to the front nose area 9. The boat may have a flat vertical aft end 41 and an engine mount superstructure attached at the aft with a propeller 34 connected to an engine 35 supported by the engine mount superstructure.

Description

MODEL TOY BOAT

RELATED APLICATI ONS

[0001] This application claims priority from previous applicalion number GBO9I 0120.5 dated 22/06/2009. I, the applicant, realise that my application for a model toy air-boat is very similar in description, although the construction detail is quite different, to Mr Cohen's application from US provisional application serial number 60/697.154 filed on March 1 0th 2006. The previous application shows how a natural tunnel hull is created by utilising surfaces other than wing surfaces, or a pair of pontoons separated by a flat plannar wing whereas my application is for a model toy boat with a mono hull with several embodiments, moreover, an engine mount superstructureS I therefore hope in your consideration of this application, although our two applications seem similar, they are in fact totally different. Art, plus the facts, knowledge and design of numerous land and air vehicles are well known.

BACKGROUND

[0002] 1. Field of the invention

(0003] The present invention relates to a field of aeronautics and aircraft design, hydrodynamics and design plus solar power technology which provides an unusual design particularly suited to a model or toy boat.

[0004] 2. Description of the Related Art.

(0005] Model aircraft have been known for many years, and are generally designed to resemble full size aircraft. That is, model aircraft have generally consisted of an elongated fuselage, with a central wing extending laterafly out from the fuselage and a tail. Assembly generally consists of a vertical tail to which a vertical rudder is connected and a short horizontal tail or stabiliser, including two elevators controlling climb and descent of the model aircraft.

[0006] It is known moreover to utilise an electric motor to power the propeller or model boat. Aircraft combustion engines are utilised to propel model aircraft and could be mounted in front of the fuselage. The engine propeller known as a pusher propeller is connected to the combustion aeroplane engine. Propellers are generally mounted so as to be perpendicular to the longitudinal axis of the forward direction.

[0007] Outdoor solar garden lights are also well known and have been around for quite some time. They include a 4 cell solar panel operating system and can stay lit for up to 12 hours at a time. The model boat has a 4 cell operating system and it is feasible to say that two small solar panels could tackle charging a 4 cell operating system.

(0008] The basic form of a hydroplane racing boat is well known. Generally, such a boat consists of a tunnel hull to which pontoons or sponsors are attached. The propulsive force is provided by a small submerged or semi-submerged propeller at the aft end of the tunnel hull cnterbody. During high speed operation, the hull lifts up and hydroplanes on the sponsons. When this happens the hydrodynamic drag is draniatically reduced and relatively high speeds over water are possible. In this mode1 the horizontal tail and supporting vertical fins or stabilisers provide some inherent static stability, which passively makes the boat more stable at high speed. A submerged rudder is used for directional control. Occasionally, hydroplanes crash in spectacular accidents after lifting off the water completely and losing all control.

Hydroplane boats are not designed for controlled flight in the air.

[0009] The historic hovercraft or air-cushioned vehicle rides on an air cushion supplied by an enclosed plenum chamber that requires continuous contact with a smooth surface. Hovercraft are very versatile on land or water but cannot fly or hover.

[0010] None of the aforementioned vehicles resemble the model boat described by the applicant herein which is a racing boat with the ability to i) skim the water (Eke a hover craft. ii) glide over water like a racing boat. iii) is manoeuvrable on water like a hydroplane racing boat. iv) glide over surface snow like a snowmobile. A vehicle capable of these modes of operation has been overlooked by prior innovators and is described by the applicant herein.

SUMMARY

100111 The object of the applicant herein is to describe a model boat comprising novel features which may increase providing a vehicle that can be manoeuvrable on any flat horizontal surface, including over water and over lily pads like speed boat and hydroplane racing boat, over surface snow like a snowmoblile and more so, over a wet grass surface.

(G042iAcordi.ngtyJfterekprovided, a model toy boat comprising a mono centreline hull with a curved front portion, a substantially flat planar upper surface and a substantially flat planar lower surface curving inwardly and upwardly to the front nose area An engine mount superstructure mounted to the aft and a substantially flat aft portion, including a hydrofoil and two or three horizontal stringers attached to the lower central region. A front hatch cover, a (non-functional) air intake and a connector Unk respectively connected to the aft rudders.

(0013] Other objects and features will become apparent from the following detailed description considered in conjunction with accompanying drawings. It is also to be understood however, that the drawings are designed solely for the purpose of illustration and not as definition of the limits of the applicant's model toy boat for which reference should be made to the appended claims. It should be further understood that the drawings are not necessarily to scale and that unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.

BRIEF DESCRiPTION OF DRAWiNGS

[00141 FiG 1 is a left perspective view of the first embodiment of the applicant's model toy air-boat [0015] FIG 2 is a top plan view and a side view of the embodiment of FIG I [0016] FIG 3 is a side sectional view of the embodiment of FIG 1,taken along lines

A-B

[00171 FIG 4 is a top plan view of the embodiment of FIG I [0018] FIG 5 is a bottom plan view of the embodiment of FIG I (0019] FIG 6 is a rear sectional view of the embodiment of FIG I taken along lines 7- 7 of FIG I including a front view of the embodiment of FIG I [00201 FiG 7 is an open side view of the embodiment of FIG I taken along lines A-B of the embodiment of FIG I [0021] FIG 8 is a top view and a side view of the second embodiment of the applicant's model toy air-boat [0022] FIG 9 is a side view and a top plan view of a boat stand of the applicant's model toy air-boat [00231 FIG 10 is a bottom plan view of the third embodiment of the applicant's model toy air-boat [0024] FIG 11 is a front view and back view of the third embodiment of FIG 10 [0025] FIG 12 is a back view of the third embodiment of FiG II of them applicant's model toy air-boat (0026] FIG 13 is a front view and back view of the fourth embodiment of the applicant's model toy air-boat [0027] FIG 14 is a bottom view of the fourth embodiment of FIG 13 [0028] FIG 15 is a top plan view of an engine mount frame of the first, second, third and fourth embodiment& of the applicant's model toy air-boat [00291 FIG 16 is a top plan view of an engine mount frame of the first, second, third and fourth embodiments of FIG 15 [0030] FIG 17 is a top plan view of a left side cut template of a left side horizontal stabiliser of the first, second, third and fourth embodiments of FIG 16 [0031] FIG 18 is atop plan view of a right side cut template of a right side horizontal stabiliser of the first, second, third and fourth embodiments of FIG 17 [0032] FIG 19 is a right perspective view of engine mount superstructure of the first, second, third and fourth embodiments of FIG 18 [0033] FIG 20 is a sectional back view taken along lines 6-6 of the first, second, third and fourth embodiments of FIG 19

DETAILED DESCRIPTION

(0034] Referring now to FiG 1, the first and second embodiments of the model boat include a mono centreline hull with a substantially flat and planar lower surface 32 and 29 NB and a substantially planar upper surface (10 not shown) A curved front portion at 9 wherein the front position curves inward and upward to the front nose area 9, 2714./B, 29NB and 32 wherein 27NB are the flat vertical sides and the mid lower angled planars are 29NB and the substantially flat lower central planar is at 32 which curve inward and upward to the front nose area. The upper substantially flat and planar surface includes a deck surface at 10 which includes a front hatch cover (not shown) and an air intake at 31 parallel to the sides, housing system electronics and a rechargeable battery (not shown) The enlarged aft cavity or well (not shown) houses an engine mount superstructure at the aft, including vertical stabilisers 4AIB connected to moveable rudders at 3NB and horizontal stabilizers at at I4AIB, a stand up aerial 33, a combustion aero engine 35 in a frontal position facing forward, a propeller at 34 at about 50% of the diameter of the engine mount superstructure so as to be perpendicular to the longitudinal axis of the forward direction of the model boat. More so, a central fuel tank is provided at 38. The aft end of the boat is substantially flat and planar 41 including a hydro-foil (not shown) attached to a lower central position of the aft end. A gunnel rail is also included at 2 around the upper outer perimeter of the model toy boat.

[0035] FIG 2 the first and second embodiments of the model boat include a mono centreline hull providing flotation for the model boat at 48, including a front hatch cover at 42, an engine mount superstructure at 40 which includes therefrom vertical stabilizers 4NB connected to vertical rudders at 3A/B including a connector link at 17 so as rudders remain parallel to one another at all times. Aft servo motors 14 and 15 connected respectively to engine linkage and to a n'ioveable control surface at the aft at 44 and 49. Included as an option are solar panels 5NB on the upper deck surface at 10 parallel to the sides. The electronic charge system circuit provides an exit at 6 as an onfoff switch at 7 including soft wood or lite-ply guide rails at 8NB. The upper deck 10 is also a soft wood or lite-ply as well as the front hatch cover, air intake, internal cavity sheeting, vertical stabilizers and rudders. The engine mount frame, the tank mount frame and the horizontal stabilizers are made from lightweight aluminium.

[0036] FIG 3 the first, second, third and fourth embodiments of the model boat include a mono centreline hull providing a sectional side view taken along lines A-B including a front hatch cavity at 42a, housing system electronics and a rechargeable battery and an enlarged aft cavity or well at 42b including a combustion aero engine (not shown) providing mass balance for the model boat on the water. An engine mount superstructure at 40. The engine propeller horizontal thrust line is at 77 wherein a down thrust is provided at about 10 or 3° to the horizontal forward movement of the boat from accidently flipping over at high speed. A tank mount frame at 54 found in a central position to a vertical line in the internal portion of the engine mount superstructure 40. At it's base a hard wood ply mount is found 25 including a cavity for ply mount at 24. An aft hydrofoil mounted to the lower central region of the aft portion at 41 including four moveable hinges at 16 A, B, C and D connecting aft control surfaces to vertical stabilizers and laterally therefrom including a supporting rail at 29MB.

[0031] FiG 5 the first and second embodiments of the model boat include a method of providing a mono centreline hull from rigid foam polystyrene and hot wire process in stages. (1) Select a portion of polystyrene slightly larger than the boat's actual dimensions including several cut templates. (2) Remove excess material around the outer perimeter of the hull's upper surface including the front curved position at 9. (3) Now the vertical sides, aft and front are provided including the upper surface of the hull. (4) Next, the lower central planar is removed 32 including an upward curve to the front nose area. (5) The mid lower angled planars are also removed from the aft to the front curving inward and upward to the front nose area 29MB. The hull is now almost complete. The upper surface cavities and the deck could now be provided for model boat. FIG 4 of embodiments of toy model boat.

[00381 FIG 4 of the first, second, third and fourth embodiments of model boat includes a foamed polystyrene mono centreline hull, also providing a method for removing access material from central inner cavities 42MB, 21 and 24, providing a hot blunt instrument, including cut templates of the upper surface of the hull, including the outer perimeter of the hull. To achieve this a method is provided in stages (1) the upper surface cavities are removed to reach a specific depth 42MB (2) the slightly deeper cavity 24, is next removed (3) the smaller deeper central cavity 21, is accordingly removed, with a hot blunt instrument. A ply mount 25 is provided with a servo lead circuit exit at 43. The servo lead circuit is pulled through exit 43, from the bottom upward of ply mount. The ply mount is accordingly attached into it's cavity 24 with the servo lead circuit protruding upward at 43 and the front exit at 33(4) the lower central floor sheet is now provided from aft to the front including the sides of cavities of 24MB, included on floor sheeting are two exits at 43 and 33 for servo lead exits.

(0039] FIG 4 of the first, second and third embodiments of model boat, includes a method of providing an upper deck surface, formed from a light wood or lite-ply sheet material for the mono centreline hull in stages as follows: (1) A cut template is provided with an 1/8" or 3.2mm overlap larger than the actual dimensions of the upper surface of the hull including the front curved porUon at 9 (2) the outer perimeter and the surfaces 42MB are accordingly removed from A-B and C-B, which now includes the upper deck cover for the toy model boat. The cavities 42MB are substantially parallel to the sides. The overlap is provided for gunnel rail 2 attached to the upper outer per!meter of the boat. The gunnel rail is of a light wood, lite-plywood or a plastic capable of being formed and resilient enough to maintain it's flexibility.

[0040] FIG 5 of the first and second embodiments of the model boat includes, the lower surface of a mono centreline hull, providing floatation for the model boat. Also included is a curved front portion at 9. The lower hull 29 A/B and 32 from the aft to the front curve inward and upwardio the front nose area, wherein C-D is the length of the boat and A-B is the width of the boat, including an aft hydro-foil 1. The central planar surface of the lower hull, includes three hardwood stringers A,B and C, wherein the central stringer B is no longer from the aft to the near front and are attached to the lower central region of the lower hull. The three hardwood stringers provide some stability for the boat at high speed, providing good turning capabilities at high speed on the water. Each of the upper surfaces and cavities and the lower surfaces of the hull, including the super structure, are provided with low friction, hardened scruff and tear resistant coating. The coating material is preferably glass fibre and preferably a white pigment to be included with the fibre resin for visability reasons, on the water.

[0041] FIG 6 of the first and second embodiments of the model boat includes a front view and a back sectional view, through line 7-7. Hardwood stringers at A,B and C attached to the central lower planar surface at 32, an enlarged aft cavity 42a and internally attached is a plywood mount 25, including a plymsill or draft line at 86. The front view includes a front portion from the aft to the front nose area, curving upward and inward to the front nose area 32, 27NB and 29 NB, also a curved front position of the upper gunnel rail at2.

[0042] FIG 7 of the first, second, third and fourth embodiments of the model boat includes a sectional side view taken along lines A-B of embodiment of model boat. It includes a hardwood former 45, provided for mounting aft porUon of the front hatch cover, including a hardwood ply former at 4-5 at the aft portion of the front hatch cover. The hardwood ply mount 25 is attached to the inner aft cavity 24, substantially parallel to the sides. The upper deck cover 10 is offered to the upper surface of the hull. A front hatch cover is also provided and offered to the front central portion of the upper deck 48 and 42. A front hatch cover is also provided from a light wood or lite-ply flat sheeting in stages as follows: (1) the front hatch cover provides an unusual self locking device or laminate of twO softwood sheets at K and L. (2) the aft moveable portion 42 of Fig 7 locks into the attached front portion 48 and is secure at the aft end to a hardwood former 45, which is attached to the upper front portion of deck cover, including two softwood side rails (not shown) included in Fig 2 at 8PJB. Also included is a removable and replaceable engine mount superstructure at 40. The aft lower portion of this embodiment provides and upward curve. This is an option of the applicant's toy model boat.

(0043] the third embodiment of the model boat as shown in FIG 8 includes an electric motor 59 housed on engine mount superstructure 40. Also I servo motor housed on the upper aft portion of the engine mount frame 63, 2 solar panels 51k/B mounted respectively to the left and right sides of the near front, substantially parallel to the sides, including a charge lead exit at 6 and an on/off flick switch at 7 and system electronics (not shown). A remote control operating system with a radio receiver, a controller and a power supply (not shown) and a flight surfaces control motor 63, including ply mount 25 and an upper deck surface 10.

[0044] Solar lights have been around for many years and are generally designed to provide regenerative power to a two cell electronic circuit system including one solar panel. As in the model boats electronic circuit system, a four cell battery system is provided to solve this problem. The applicant has found that two solar panels mounted to the upper surface of the deck, can feasibly provide regenerative power to the four cell rechargeable battery electronic circuit of the toy model boat. b

[0045] now referring to FIG 9 of a boat stand for first, second, third and fourth embodiments of model boats. Provided is a boat stand with two side rails 88 and three hardwood dowels 83A, B and C. A method of construction includes W' or 6.35mm plywood and three 1⁄4" or 6.35mm hardwood dowels. Stage (1) with a cut template provided. The exact shape of the two end rails is scribed onto flat sheet plywood and accordingly provided with three 1⁄4" or 6.35 holes. (2) the two side rails are assembled and attached. (3) the spacing is quite critical not too far back and not too far forward (4) the stand is accordingly coated with a scratch resistant coating and provides a stand for model toy boats of the applicant and inventor.

[0046] It will be understood that while the model boat as provided herein has been described including a mono centreline hull with a substantially flat planar lower surface. It is also feasible to provide a mono centreline hull providing a central tunnel from aft to the front. Now referring to FIG 10 of the third and fourth embodiments of a model boat, includes a method to achieve a round tunnel hull in stages as follows: (1) an existing foam polystyrene hull is selected and inverted onto a work surface or cutting board.

(2) a round tool is provided with an abrasive means attached.

(3) a line is scribed to the central lower region of the hull at 60.

(4) the round tool is accordingly applied to the lower central region from the aft to the front curing upward to the front nose area, until a satisfactory depth is achieved, preferably to above the plymsill or draft line at 86, thus creating a round tunnel hull.

On the water, a static air pocket is created and the hydrodynamic drag is dramatically reduced and relatively high speeds over the water are possible.

[0047] FIG 11 of the third embodiment of model boat includes a back view and a front view, including a central tunnel hull 60 from the aft to the front curving upward to the nose area. The remaining flat lower portions 60 EA and EB from the aft to the front curve upward to the front nose area. The mid lower planars 29A/B from the aft to the front curve inward and upward to the front nose area. The flat vertical sides 27A/B from the aft to the front curve inward and upward to the front nose area. The back view also includes a round tunnel wherein 60 EA and ER are the remaining flat lower portions and 600 is a central region of the round tunnel hull, thus a round tunnel hull is defined. The back view also includes an enclosed aft portion at 41 and a portion of the aft gunnel rail 2. Also included are hardwood stringers at A and C attached to the lower outer faces of EA and ES from the aft to the near front.

100481 FIG 11 includes a back view and a front view of the third embodiment of model boat, includes a round tunnel hull at 60 and the remaining flat portions EA and ER. The lower mid angled surfaces 29A/B, a plymsill line 86 and vertical flat sides 27A1B. The back view includes a tunnel hurl 60, wherein 6OAIB are the lower portions and 600 in the upper central portion of the tunnel hull and an enclosed aft end at 41, preferably left open and a portion of the aft gunnel rail at 2 of the embodiment of model toy boat and the applicant and inventor.

[0049] It will be understood that while the model boat as provided herein has been described including a mono centreline hull, wherein the front portion of the model boat, from the aft to the front curve inward and upward to the front nose area. It is also feasible to include steps to either sides of the mono centreline hull, including a round tunnel hull.

[0050] FiG 13 of the fourth embodiment of model boat include a front view and a back view of model boat, which include steps about half way from the front enlarged positions 27A1B, tapering in an inward curve to the aft end including narrow aft portion 29A1B. The front enlarged position 27A/B curves inward and upward to the front nose area. The lower flat portions FA and EB from the aft to the front curve upward to the nose area, including the round central tunnel 60, wherein 6OEA and EB are the remaining flat portions from the aft to the front curve upward to the nose area. To conclude, a round tunnel and steps are provided for model boats.

[0051] FIG 14 of the fourth embodiment of the model boat, including a bottom view of the fourth embodiment which include steps about halt way from the front enlarged portions 27NB, tapering in an inward curve to the aft end including narrow aft portion 29A/B the mid lower planars 29A/B and the remaining flat portions EA and EB, curve inward and upward to the front nose area providing flotation for the model boat on the water.

(0052] FIG 14 of the fourth embodiment of model boat, included is the bottom view of a mono centreline hull, includes a method of providing an upper deck surface formed from a lightwood, preferably a lite ply material, including a lower surface template FIG 14 which has the same outer perimeter as the upper deck surface, including the outrigger stabilisers at the aft. The central cut surfaces 42A/B are provided in FiG 4 along A-B and C-B, which are accordingly included on cut template for upper deck surface of mono centreline hull. To achieve this stages are included stage (1) the outer perimeter is accordingly provided 118" or 3.2mm larger than the actual dimensions of the upper decks surface (2) the outer perimeter is provided from the aft to the front curves portion 9 including steps at G and I-I and narrow aft portion at E, including outrigger stabilisers 32A1B at the aft end. The hull provides floatation for the model toy boat on the water.

[00531 The upper surface central cavities of the fourth embodiment of model boat are removed in the same manner as the first, second and third embodiments of the model boat of FIG 4.

(0064] FIG 20 of the first, second, third and fourth embodiments of model boat, included is a central inner ply mount, included is a central inner ply mount including four captive nuts attached to the lower surface which correspond to four holes on the lower rails of engine mount frame 48 of FIG 19 and 52A1B of FIG 20. Also included is an exit hole for extension leads and aerial wire at 21, with a tank mount frame 54 to support the fuel tank, including an engine mount superstructure 40 which spans the width of the upper hull. The engine mount is accordingly bolted to the ply mount at the aft in a central position substantially parallel to the sides of the toy modeL boat.

(0055 One of the features of the present invention is the geometry of the engine mount super structure, wherein it is removable and replaceable and is substantially vertical to the horizontal sides FIG 19. Now providing an engine mount 70 which can house various size combustion aero engines, or powered by various electrical motors and accordingly facing forward, included are two moveable rudders at the aft 3AIB, which are respectively attached with four moveable hinges to vertical stabilisers which are attached to the vertical outer faces of the engine mount frame FIG 19, substantially parallel to one another at all times. The horizontal stabilisers 12NB and 14A/B are attached adjacent to the upper portions of the vertical stabilisers 4A/B and mounted to the inner upper horizontal stabiLisers are two servo motors (not shown) and linkages (not shown). The aft portion of the horizontal stabilisers I4NB are angled slightly upward from horizontal and exhibit an angle of attack on a horizontal line of between about 5° to about 10° which provide lift for the boat at high speed. Also included are two flexible absorbers 50 (provided to absorb engine vibration), two side rails are also provided 44 to attach engine mount super structure to inner ply mount in a central position to the aft of the model boat, substantially parallel to the sides. A tank mount frame is also included 54, attached to the inner lower central faces of the engine mount frame provided to house a fuel tank, included are a moveable connector link 17 respectively attached to the upper near front of the vertical rudders 3NB, to move parallel to one another at all times and provides directional control for the model toy boat of the applicant and inventor.

[0056] One of the features of the present invention is the geometry of the engine mount super structure which is substantially vertical and horizontal spanning the width of the boat. A frontal engine mount is provided 70 of F1GI and FIG 19, which is capable of providing a mount for various size combustion aero engines and/or powered by electricity. The engine mount super structure and the engines and/or electrics, are removable and replaceable at any time. Now referring to FIG 19 of the first, second, third and fourth embodiments of the model boat, which has two movable aft services including two servo motors respectively controlling total direction and speed. The horizontal stabiliser and the supporting vertical stabiliser, provides some inherent static stability, which passively makes the boat more stable at high speed on the water surface, or on a snow surface like a snowmobile.

[0051] Fl 15 of the first, second, third and fourth embodiments of the model boat, includes an engine mount frame. A flat sheet of aluminium template is provided and preferably CNC engineered, including all drill holes and cut surfaces. The aluminium template includes two horizontal flat rails 44 on a bend line A-B and extending vertically therefrom, are two flat vertical faces 45 on A bend line A-B, including a fiat horizontal surface 46, an engine mount at 70. There are four holes provided for engine mount dependent on engine size 54 and two holes for fuel tube exits 49 and a stand up serial mount at 47. The two sides 45 include four holes at 32 for attaching horizontal stabilisers to two corresponding holes on horizontal stabilisers (not shown) 29NBofF1G2.

o0S81 FIG 16 on the first, second, third and fourth embodiments of the model boat, include a tank mount frame. The tank mount frame is a fLat cut sheet template, including vertical sides at 54 on a bend line A-B and a central flat face at 53 which provides a centrally mounted tank frame, for toy model boat.

[0059] FIGS 17 & 18 of the first, second, third and fourth embodiments of the model boat, included are two horizontal stabilisers, preferably CNC engineered, including all drill holes and cut surfaces. A flat sheet aluminium cut template is provided for a left side and a right side horizontal stabiliser, includes a flat front face 12A on a bend line A-B and extending therefrom, are two mount rails 29 the two aft faces 14B extending to cut a cut line Al and BI. The portion 11 is accordingly removed, providing a mount for two shall servo motors (not shown) 14 and 15 of FIG 2. The aft faces 14MB of the horizontal stabilisers are angled slightly upward from horizontal and exhibit an angle of attack on a horizontal line of between about 5° to about 10° which provides lift to the aft portion of the toy model boat.

(0060] FIG 19 of the first, second, third and fourth embodiments of the model boat, including an engine mount superstructure frame with flexible absorbers accordingly attached to the lower faces of the mount frame rails at 44, where the mount frame vertical sides 45, include and upper face 46, including en engine mount portion at 70, exit holes provided for fuel tubing at 49 and a stand up aerial at 47 (not shown). At the aft vertical rudders 3MB are respectively attached to vertical stabilisers 4MB with moveable hinges. The two vertical faces are respectively laminated to the outer faces of the vertical sides of the engine mount frame at 45 to remain parallel to one another at all times and to the upper near front surfaces accordingly is attached a connector link at 17, to remain parallel to one another at all times providing steering control forthe toy modeL boat.

[0061] Another feature of the present invention of the engine mount super structure frame, is in its geometry incLuding its robust construction of a durable flat sheet lightweight aluminium, so enabling the engine mount frame to house various size and capacity aero combustion engines, ranging from.25 cubic inches or 4.0 cubic centimetres to.43 cubic inches or 7.00 cubic centimetres. Including various four-stroke and two-stroke engine equivalents of the applicant's invention.

(0062] Due to rotational forces and a high deck mounted superstructure, it became apparent that the boat appeared to be a bit uneasy on the water in tight turns, and on occasion it had a spectacular accident. To solve this problem, the applicant lowered the centre of gravity of the superstructure, deeper into the aft of the model boat and thus created an aft well or hatch below deck level. As a result this improved the boats manoeuvrability at high speeds on the water surface. Additionally, the sweep diameter of the propeller extends almost 50% of the front portion of the engine mount superstructure. This relatively large width enables an efficient operation on the water.

(0063] The model toy boat weighs 15.8 ounces with an empty tank and is capable of floating on 1" or 25.4mm of surface water.

[0064] Each of the lower and upper surfaces of the mono-centre-Hne hull be provided with a low friction hardened scuff and tear resistant coating 48 and 10 of FIG I and 2, including engine mount superstructure 40. The resistant coating if preferably fibreglass with a white pigmented resin, plastic or wood. The remainder of the model boat can be made from any lightweight sheet material capable of being formed, or CNC engineered and being resilient enough to maintain rigidity, such as, but not limited to foam polystyrene.

[0065] The motor may be electric to facilitate remote speed control of the motive means, a rechargeable battery (not shown) is provided in the front hatch compartment (not shown). The battery powers the electric motor 59 of FIG 8 and system electronics (not shown). A remote control operation system (not shown), a control circuit (not shown) and a control surface control motor 63, control the moveable directional surfaces at the aft of the model toy boat. I0

[0066] The round tunnel hull from aft to the front curves inward and upward to the front nose area. The round tunnel, extend above the plymsill line or draft line, which creates a air pocket in the upper surface of the central tunnel. This is essential to provide Low aerodynamic and frictional drag for operation on the water surface.

[0067] The remote control operation system (not shown) housed in the front hatch compartment of the central hull FIG 3 42A, provides mass balance to the boat for water operation. The longitudinal centre of gravity measured from the front upper surface is a little over 50% and also provides in this region, a centre of gravity on a vertical line 32 of FIG 2. For the toy boat (0068] The differential drag in high speed turning of the boat, is considerably reduced, due to the natural curve of the tunnel hull, providing turning capabilities at high speed.

[0069] While there has been shown, described and pointed out fundamental novel features of the model toy air-boat as described herein, it should be understood that various omissions, substitutions and changes in the form and details of the devices illustrated and in their operation, may be made by those skilled in the art, without departing from the spirit of the invention. For example, it is expressly intended that all combinations of those elements and/or method steps shown and/or described, in connection with any disclosed form or embodiment of the model toy boat may be incorporated in any other disclosed, described or suggested form or embodiment as a general mailer of design choice. It is the intention of the applicant, therefore, to be limited only as indicated by the scope of the claims appended hereto.

Claims

CLAIMS1. A model toy boat comprising: A mono centreline hull with left and right sides, an aft and a curved front A mono centreline hull with a substantially planar upper surface A mono centreline hull with a substantially planer lower surface, curving inward and upward to the front nose area.A mono centreline hull with at least 2 or 3 hardwood stringers attached to the lower central hull A mono centreline hull with at least two tunnel hulls A mono centreline hull with at least one step to the left and right sides of the hull An engine mount superstructure at the aft in a central position substantially parallel to the sides An engine mount superstructure at the aft, including two moveable control surfaces An engine mount superstructure with two moveable surfaces and a connecting link at the aft An engine mount superstructure, including an engine mount frame, two vertical stabilisers, two vertical rudders and two horizontal stabilisers An engine mount superstructure with at least two sevomotors found on the horizontal stabilisers.A mono centreline hull with upper cavities found in a central position An engine mount superstructure with a combustion aero engineS and propeller including a propeller spinner An engine mount superstructure with at least one electric motor and one servo motor A motive means connected to the remote control operating system A surface control motor connected to the remote control operation system and two directional control surfaces.The aero combustion engines range from.25 cubic inches or 4.00 cubic centimetres to.43 cubic inches or 7.0 cubic centimetres A gunnel rail of a softwood, lite-ply or plastic capable of being formed.
2. The model toy boat as claimed in claim 1, wherein the upper surface is substantially flat and planar
3. The model toy boat as claimed in claim 1, wherein the two vertical sides from the aft to the front curve upward and inward to the front nose area of the boat
4. The model toy boat as claimed in claim 3, wherein the two lower mid angled surfaces from the all to the front curve inward and upward to the front nose area of the boat
5. The model toy boat as claimed in claim 4, wherein the lower central flat planar curves upward to the front nose area of the boat
6. The model toy boat as claimed in claim 5, wherein the tower surface in substantially flat and planar of the boat
7. The model toy boat as claimed in claim 4, wherein a tunnel hull in provided from the aft to the front, curing upward to the front nose area of the boat.
8. The model toy boat as claimed in claim 2, wherein cavities are provided on the upper central surface of the hull
9. The model toy boat as claimed in cLaim 7, wherein a step is provided on the sides of the hulL
10. The model toy boat as claimed in claim 9, wherein the aft position is vertical and flat
11. The model toy boat as claimed in claim 10, wherein the aft portion curves upward or downward
12. The model toy boat as claimed in claim 2, wherein the upper front surface is curved
13. The model toy boat as claimed in claim 9, wherein the larger front portion tapers in a curve inward to the aft of the boat
14. The model toy boat as claimed in claim 13, wherein the front portion is larger than the aft portion and curves inward and upward to the front nose area of the boat
15. The model toy boat as claimed in claim 3, wherein the gunnel rail extends the upper perimeter of the boat
16. The model toy boat as claimed in claim 28, wherein linkage systems connected to servo motors for steering and speed control of the boat
17. The model toy boat as claimed in claim 16, wherein a hydro-foil is found at the lower aft portion of the hull
18. The model toy boat as claimed in claim 9, wherein a deflector is found at the aft of tunnel hull
19. The model toy boat as claimed in claim 1, wherein two or three hardwood stringers are attached to the lower central portion of the hull.
20. The model toy boat as claimed in claim 2, wherein an upper deck is aft ached to upper surface of the hull
21.The model toy boat as claimed in claim 20, wherein ply mount has servo leads and aerial wire exit and four captive nuts
22. The model toy boat as claimed in claim 21, wherein the smaller front cavity houses system circuit electronics
23. The model toy boat as claimed in claim 22, wherein exit holes are provided in lower deck sheeting
24. The model toy boat as claimed in claim 2, wherein the upper deck is sheeted and covers most of the upper surface
25. The model toy boat as claimed in claim 101 wherein the aft portion is sheeted, including or excluding upper aft cavity area
26. The model toy boat as claimed in claim 1, wherein the front hatch cover is found in a central position parallel to the sides
27. The model toy boat as claimed in claim 26, wherein the front hatch houses system electronics including a rechargeable battery, a radio receiver, a flick on-off switch and a charge system outlet
28. The model toy boat as claimed in claim I, wherein the engine mount superstructure is found in a central position to the aft, parallel to the sides
29. The model toy boat as claimed in claim 28, wherein the engine mount superstructure is removable and replaceable
30. The model toy boat as claimed in claim 29, wherein the system electronics are removable and replaceable
31. The model toy boat as claimed in claim 30, wherein servo motors are also removable and replaceable
32. The model toy boat as claimed in claim 29, wherein the motor motive is also removable and replaceable
33. The model toy boat as claimed in claim 32, wherein at least one motor driven propeller faces to the front
34. The model toy boat as claimed in claim 33, wherein at least one motor drive propeller is craven by a combustion aero engine
35. The model toy boat as claimed in claim 33, wherein a fuel tank is attached to the tank mount frame
36. The model toy boat as claimed in claim 30, wherein system electronics be provided for electric motor, including a rechargeable battery speed controller, one servo motor and a stand up aerial
37. The model toy boat as claimed in claim 35, wherein two swervo motors are provided for combustion aero engine and a stand up aerial
38. The model toy boat as claimed in claim 31, wherein all servo systems be provided with linkages
39. The model toy boat as claimed in claim 28, wherein engine mount superstructure components are vertical and horizontal
40. The model toy boat as claimed in claim 39, wherein the engine mount superstructure in substantially vertical
41. The modei toy boat as claimed in claim 28, wherein an engine mount frame is found internally
42. The model toy boat as claimed in claim 41, wherein a fuel tank mount is found internally
43.The model toy boat as claimed in claim 42, wherein two vertical stabilisers are found mounted to the outer upper sides of the engine mount frame
44.The model toy boat as claimed in claim 43, wherein the two vertical rudders are found at the aft of the engine mount superstructure.
45. The model toy boat as claimed in claim 44, wherein a moveable connector link is found at the aft portion of the engine mount superstructure
46. The model toy boat as claimed in claim 45, wherein two surface control motors are found mounted to the two horizontal stabilisers
47. The model toy boat as claimed in claim 46, wherein two horizontal stabilisers are found mounted to the vertical stabilisers of the engine mount superstructure
48. The model toy boat as claimed in claim 47, wherein the horizontal stabilisers respectively have a forward angle of attack, that is slightly upward from horizontal
49. The model toy boat as claimed in claim 48, wherein the angle of attack is between about 5° and about 100
50. The model toy boat as claimed in claim 39, wherein the motive means has a thrust line, and wherein the thrust line of the motive means is located coincidently with the vertical centre of gravity of the boat
51. The model toy boat as claimed in claim 50, wherein the boat includes an engine mount superstructure are located aft of the longitudinal centre of gravity of the boat
52. The model toy boat as claimed in claim 51, wherein the longitudinal centre of gravity of the boat, measured, from the front end of the boat is substantially at a 50% region
53. The model toy boat as claimed in claim 28, wherein the engine mount superstructure spans the width of the boat
54. The model toy boat as claimed in claim 7, wherein the upper portion of the tunnel hull and the curved sides define a tunnel hull
55. The model toy boat as claimed in claim 1, wherein the resistant coating material is selected from a group consisting of glass fibre, plastic or wood
56. The model toy boat as claimed in claim 55, wherein that each of the upper sheeted planar deck, the aft sheeted portion and the lower rigid foam surfaces are provided with a low friction, scuff and tear resist coating
57. The model toy boat as claimed in claim 12, wherein the boat further includes out-rigger sub tails included on the rear portions of the upper deck
58. The model toy boat as claimed in claim 56, wherein the boat is made from rigid lightweight foam
59. The model toy boat as claimed in claim I, wherein one motor driven propeller is angled downward to provide down thrust
60. The model toy boat as claimed in claim 33 and 34, wherein the downward angle of the motor driven propeller is between about 1 to 8° relative to the horizontal stabilisers incidence
61. The model toy boat as claimed in claim 60, wherein a spinner is provide for combustion aero engine.
62. The model toy boat as claimed in claim 61! wherein various sizes and pitch propellers be utilised
63. The toy model boat as claimed in claim 62, wherein the radius of the propeller is the same height as the engine mount superstructure lb
64. The toy model boat as claimed in claim 55, wherein a white pigment be added to glass fibre resin
65. The toy model boat as claimed in claim 1, wherein the two favourable surfaces are found at the aft of the engine mount superstructure
66. The toy model boat as claimed in claim 65, wherein the moveable control surfaces move parallel to one another at all times
67. The toy model boat as claimed in claim 59, wherein at least one motor driven propeller is driven by an electric motor.
68. The toy model boat as claimed in claim 67, wherein the stand up aerial is mounted to the aft of the upper engine mount frame.
69. The toy model boat as claimed in claim 29 wherein, the engine mount superstructure is bolted to the lower ply mount, in a central position at the aft.
70. The toy model boat as claimed in claim 30 wherein the servo motor leads be connected to system electronics, battery and remote operation system
71. The toy model boat as claimed in 1, wherein various size aero combustion engines are utilized.
72. The toy model boat as ciaimed in claim 1, wherein a gunnel rail of a softwood, lite ply or plastic, capable of being formed
73. The toy model boat as claimed in claim 26, wherein the boat includes an air-intake mounted to the front hatch cover 1-I