Combined flying machine

Details Combined flying machine Combined flying machine

1995-08-17

1999-02-23

Mojica, V. Lissi

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and fluid sustained

244 122, 244 23C, 244100A, 244107, B64C 2902, B64C 2558, B64C 2720

Patent

active

058735453

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

The present invention relates to aircraft production and can be utilized in flying machines with vertical take-off and landing of various assignments: passenger-carrying, cargo, cargo-passenger, ambulance and other special purpose aircraft.


PRIOR ART

Flying machines with vertical take-off and landing having promising possibilities in the development of aviation material, as they can be employed on unprepared landing grounds. Such machines are especially appealing for special-purpose aviation and local-service air routes. There are several types of flying machines with vertical take-off and landing.
There are known flying machines with vertical take-off and landing, in which the lift force during the take-off and landing is induced thanks to the reactive force of a high-velocity jet. For instance, the flying machine, set forth in the BRD patent No. 1246422, Cl. B 60 V 3108, (QPC: 62b-60) of 1967, comprises a cylindrical fuselage with wings and a tail unit, power plants for level flight, disposed under the wing, and power plants for take-off and landing. Said power plants for take-off and landing are arranged in pods of the middle part of the fuselage. A drawback of this type of the arrangement is a high fuel consumption under the take-off and landing conditions and a complicated design of said machine, since it is necessary to have additional engines in the power plants for vertical take-off and landing. Furthermore, said high-velocity jet during take-off and landing has a profound impact on the surface of the landing ground, which makes the operation of the machines of this type impossible from soil sites.
In the prior art there is known a flying machine with vertical take-off and landing that constitutes a combination of an airplane and a-helicopter, described in the U.S. Pat. No. Re 29023, Cl. 244-6 of 1976. Said flying machine is provided with a fuselage having a high-mounted wing and vertical fins at the wing tips. The wing is manufactured with a semicircular cut-out of the trailing edge. Over the stern part of the fuselage there is mounted a lifting rotor, the plane of rotation of which coincides with the horizontal plane of the wing. The flying machine is equipped also with power plants for the level flight.
The presence of an open lifting rotor essentially impairs the aerodynamics of said machine in the level cruising flight. Furthermore, the overall dimensions of said lifting rotor and its transmission system are such that said lifting rotor will always be over the fuselage or any other supporting structure, which adversely affects the characteristics of the flying machine at the take-off and landing due to the transverse flow over the fuselage.
There are known in the prior art combined flying machines In which lift during take-off and landing and thrust effort in the level flight are developed by a single device constitutes to a tilt propeller. Such a flying machine is described in the Great Britain patent No. 1405737, Cl. B 7 W of 1975. Said prior art flying machine comprises a fuselage with wings and a tail unit. Said wings supported for supported for tilting, and power plants along with propellers are mounted on the tiltable part of the wings. The same propellers are employed for developing a lift force for take-off and landing as well as for generating a thrust for the level flight. The arrangement with said tilting wing displays advantages in comparison with the open lifting motor, worked up by a lot of designers and embodied in real machines. The use of one and the same propeller for vertical take-off and landing and for level flight, however, imposes very strict requirements to said propeller. The tilting propeller may not feature the same diameter as the lifting rotor of the helicopter, and therefore the specific load on said propeller during the take-off and landing is greater than that of the helicopter. As a consequence, a greater power of the engine is needed. A greater specific load on the propeller during the take-off brings about greater velocities of the

REFERENCES:
patent: Re29023 (1976-11-01), Malvestuto
patent: 2988301 (1961-06-01), Fletcher
patent: 3002709 (1961-10-01), Cochran
patent: 3049320 (1962-08-01), Fletcher
patent: 3689011 (1972-09-01), Torelli
patent: 3938761 (1976-02-01), Hempenstall
patent: 4196877 (1980-04-01), Mutrux
patent: 4298175 (1981-11-01), Earl
patent: 4757962 (1988-07-01), Grant
patent: 4828058 (1989-05-01), Bjorn-Ake
patent: 5035377 (1991-07-01), Buchelt
patent: 5152478 (1992-10-01), Cycon
patent: 5277380 (1994-01-01), Cycon et al.

Affiliated with

Also associated with

Rating

Combined flying machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combined flying machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combined flying machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-300000