DE19820260A1 - Low-wing helicopter - Google Patents

Abstract

The helicopter cabin is located above the propellers (3) which are inside a guard. The propellers are arranged behind the cabin during cruising. The cabin, during cruising can be pushed in the flight direction, and the rotor blades can be turned up to 90 degrees. The reversing vanes substitute the tail rotor. The helicopter has retractable air cushion for vertical landing on snow, water and land.

Description

The invention relates to an aircraft that both fly and can start vertically. The aircraft carries under the cabin a round wing in which an inflatable air cushion is housed by means of the net around the air cushion ring has been placed, can be withdrawn again. The rotor blades are housed in a protective cage. Instead of the rear wing are on the rotor blade guard are thrust reverser used.

State of the art aircraft technology known to me are helicopters in which the rotors rotate unprotected over the cabin. I am also familiar with aircraft with nozzles and wings in which the thrust is reversed to start vertically. Are not known to me the helicopter Fig. 2, Fig. 3, 13 reverse thrust bucket have to replace the tail rotor.

According to the invention, the aircraft is designed so that the rotor blade Fig. 1, 3 is below the cabin Fig. 1, or during the cruise behind the cabin Fig. 3, 7 in a rotor protection cage Fig. 2, Fig. 3 with the 9th designated, located.

In addition, the aircraft has a round wing Fig. 1, 1, in which the ailerons 4 and the rear wing 2 , are integrated, which are mainly designed for cruising. Fig. 2 shows the transition to cruise. Fig. 1 shows the vertical start position. FIG. 4 shows the water landing position, this position is also used to the aircraft with the help of the air bag 11 to push in the hall.

The engine or engine 10 ( 14 is the exhaust) is connected to the rotor guard Fig. 2 to Fig. 4, and between the rotor guard 9 and the round wing 1 left side (in the area of the sliding cylinder 5 ) hydraulic rotary cylinder and on the right side an electric servomotor if the hydraulic rotary cylinder fails. (The rotor protection is designed accordingly strong.) The two sliding cylinders can also be electrically pushed back and forth if the hydraulics fail. The ailerons 4 , stern rudder Fig. 3, 12 and the rear wing with tailgate 2 can be controlled with auxiliary hydraulics or simply by hand, with the pull cables should be in duplicate. Fig. 3, 6 , Fig. 4, 6 shows the stern rudder main part.

The air cushion ring 11 is drawn into the center of the circular wing 1 with the aid of a net which is placed around the air cushion ring, in such a way that the aerodynamics are not disturbed. An advantage is the round wing when starting vertically because the air vortices surrounding the aircraft are stopped. Figure 8 shows the carrier linkage of the cabin.

The maneuverability of the "low-wing helicopter with round wing on land and water" Fig. 1 is once with the help of the rotor blades 3 which have a blade adjustment, with the pivotability of the rotor which is connected to the motor 10 and rotor guard 9 and the aileron 4 , rear wing with Tailgate 2 and rudder 12 , accomplished.

Of course, the "low-wing helicopter with a round wing is too Land und Wasser "with nose wheels and stern wheels additionally executed.

If the drive rotor fails during cruise flight Fig. 3, the nose of the cabin must be steered to the bottom left so that the rotor blades can be started again by the flying wind.

If the engine (turbo engine) 10 no longer starts, the unit (which consists of 9 , 13 , 14 , 10 ) can be rotated by 90 degrees and with the help of the on-board battery of the servomotor, which is located between the circular wing 1 and the rotor guard 9 the cabin 7 is pulled electrically during the emergency landing phase with the shifting device and the bow and stern wheels are extended.

In the event of an engine failure during a vertical start (where gliding can no longer be initiated due to insufficient altitude), an automatic gyro control takes over the emergency landing of the "low-wing helicopter on land and water" in which the rotor blades automatically and quickly Be changed and the balance with the help of the rotor blades and with the help of the ailerons 4 and the rear wing flap 2 and a rapid displacement of the cabin with the displacement device 5 . The energy required for the rotor 3 is obtained from a flywheel located in the engine 10 . During this emergency landing procedure, only 10 percent controllability on the part of the pilot is permitted. The aircraft's computer handles the remaining 90%.

Claims (4)

1. Low-wing helicopter with round wing on land and water, the vertical start Fig. 1 and in cruise flight Fig. 2, Fig. 3 can go over. Which can be used as rescue, police, military and private, characterized in that the cabin of the aircraft is above the protected ( Fig. 2, 9 ) rotor blades ( 3 ) and has a round wing ( Fig. 1, 1 , 2 , 4 consisting). 2. Low-wing helicopter with round wing on land and water according to claim 1, characterized in that the cabin during cruise flight Fig. 7 can slide with a displacement device 5 in the direction of flight and the rotor blades 3 with Fig. 3, 9 , 13 , 14th and 10 , can turn up to 90 degrees, and the reversing blades (about five in number) replace the usual tail rotor. 3. Low-wing helicopter with round wing on land and water according to claim 1, characterized in that the aircraft has a retractable air cushion in the R.-wing 1 Fig. 4, 11 to land vertically on snow, water and land. 4. low-wing helicopter with round wing on land and water according to claim 1, 2, 3, characterized in that in the event of engine failure 10 the aircraft is landed fully and semi-automatically.