FR2868991A1 - Vehicle for use in civil and military applications, has wing with reduced span and large chord, where wing is placed above vehicle with variable incidence, and pusher propeller placed near trailing edge to draw wing - Google Patents

Abstract

The vehicle has a wing (2) with span of less than 2 meters, so that dimensions of the vehicle are close to that of a car with a length less than 5 meters and width less than 2 meters. The wing has a large chord to obtain a wing surface and is placed above the vehicle with variable incidence. The wing has panels at its ends for insulating lower and upper surfaces. A pusher propeller (6) is placed near a trailing edge to draw the wing.

Description

FLYING MOTOR VEHICLE

  This vehicle is able to fly and move on the road, without the need to be modified, to switch from one use to another.

  This vehicle can travel on the road thanks to its dimensions similar to those of a car, less than 5 meters in length and less than 2 meters in width. This small width is made possible by the use of a wing (2) of less than 2 meters wingspan but with a large rope, in order to obtain an acceptable wing surface. This wing is placed above the vehicle (1) and it is variable incidence to allow the aircraft to take off and land without the need to change attitude. Despite its small size, this wing can operate thanks to panels placed at its ends (3) which carefully isolate the lower surface of the upper surface and maintain the pressure differences.

  The propeller propeller (6) is placed behind the wing and as close as possible to the trailing edge; the wing is thus sucked by the propeller. This suction helps to maintain the speed of the air flowing on the upper surface and avoids its detachment, even at high incidence. It also prevents any rise of air from the lower surface to the upper surface. This arrangement creates a hypersustentation effect that compensates for the small wing area of the apparatus. In the position of high incidence of the wing, the trailing edge is placed approximately at the axis of the propeller so that the maximum width of the wing benefits from the suction of the propeller.

  The propeller is driven by a heat engine (4) placed in the rear part of the apparatus. Its weight helps to balance that of passengers placed in the front.

  The propeller does not turn when the vehicle is on the road.

  The vehicle is 3 or 4 wheels. Its propulsion on the road is provided by the main heat engine (whose propeller has been disengaged). It will drive the wheel or wheels, either directly or through motor (s) electric (s).

  The vehicle cab (5) has an unobstructed view, both in the air and on the road.

  To fly, this unit is equipped with the usual control surfaces of an airplane (7) to which is added the control of incidence of the wing.

  To drive, he must have the necessary controls for a road vehicle and all the regulatory safety accessories.

  2868991 2 To limit the height of the vehicle on the ground and reduce its wind angle, the upper part of the 2 panels can be lowered (8), as well as in fast flight to limit the drag. This change would be the only difference between the flying device and the rolling machine.

  This vehicle is intended for civilian or military use.

Claims (1)

3 claims   1: A vehicle capable of flying and traveling on the road, characterized in that it comprises a wing with large rope and small span placed above the vehicle and variable incidence.   2: Vehicle according to claim 1, characterized in that the wing is provided with 5 panels at each end to isolate the intrados of the extrados.   3: Vehicle according to claim 1, characterized in that it further comprises a propeller propeller placed just behind the wing, near the trailing edge and sucking the wing.