RU2474515C2 - "ugly duckling" amphibian aircraft - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering, particularly, to hydro-airfoil boats. Proposed hydro-airfoil boat comprises airframe including submersible body, tapered thick wing, wheel-ski undercarriage, lift-sustainer jet engine, nozzles-elevens, boundary layer control gas-dynamic system, takeoff-landing device, hunting gas rudder, wing center-section, flashing beacon lights, and tie-down rope lock. Airframe represents a wide-body low-wing plane. Airframe legs-pylons support catamaran ski-floats with wheels of main legs. Nose parking ski-step is arranged ahead of wheel while tail steering ski, a course stabiliser, is mounted behind the wheel.

EFFECT: better hydrodynamic navigability.

3 dwg

Description

The invention relates to aircraft flying in the vicinity of the earth.

Known ekranoplan containing a long submersible fuselage with a chassis, water skiing and floats on the end edges of the trapezoidal wing. Arrow tail. In the bow on the pylons is a system of jet propulsion systems (see the journal Technika-Molodezhi publ. "Technika-Molodezhi" M., No. 10, 1998, p. 16).

The long winged fuselage does not provide reliable longitudinal directional stability when flying in near-screen mode. The ekranoplan glider has a low freeboard height, i.e. has limited use in open water during rough seas. And with a high layer of snow. Low efficiency ekranoplan.

Known ekranoplan containing a thick wing with a negative cross-sectional V-shaped angle, and on the ski consoles floats forming an air cushion under the bottom, and two additional thin wing consoles. On the center section there are two fan-type propulsion systems, as well as a tail unit, a cockpit for passengers and passengers (see the journal Technika-Molodezhi publ. Technika-Molodezhi, M., No. 5, 2000, p. 8).

Low aerohydrodynamic quality of the ekranoplan design. Low efficiency of propulsion systems.

The closest analogue of this invention is:

An amphibian aircraft is a high-wing aircraft containing a glider including a water submersible hull, a trapezoidal thick wing, a ski-and-wheeled landing gear, a propulsion engine, elevon nozzles, a gas-dynamic boundary layer control system, a take-off and landing device, a gas yaw wheel, a wing center wing, lights flashing beacon and locking lock of the mooring cable (see patent RU 2281228 C1, B64C 35/00, published August 10, 2006, Bull. No. 22).

This amphibious aircraft at the rate of its movement during takeoff and landing has a three-wheeled track, i.e. low maneuverability and maneuverability on unprepared runways. It has low aerohydrodynamic seaworthiness. Low track stability in planing mode.

The tasks solved by the invention:

- to constructively increase the cross-country ability and maneuverability of an amphibious aircraft on unprepared runways;

- to constructively improve the aero-hydrodynamic seaworthiness of an amphibious aircraft.

The invention consists in the following.

Amphibious aircraft containing a glider, comprising a water submersible hull, a trapezoidal thick wing, a ski-wheel landing gear, a propulsion engine, elevon nozzles, a gas-dynamic boundary layer control system, a take-off and landing device, a gas yaw wheel, a wing center wing, flashing lights a lighthouse and a lock-capture of the mooring cable, the glider is made in the form of a wide-body low-wing, on the pillar racks of which are mounted on the chassis of a catamaran ski-floats with wheels of the main racks, while the nose stays th ski-Redan is set to wheel, and the shadow aft taxiway ski - track stabilizer - installed behind the wheel.

This invention will improve the aerohydrodynamic seaworthiness of an amphibious aircraft.

The invention is illustrated by drawings, where:

Figure 1 - shows a front view;

Figure 2 is the same plan view;

Figure 3 is the same side view.

An amphibious aircraft contains a glider 1, which houses a wide fuselage 2 with a thick wing 3 low-wing. In the rear part of the fuselage there is a lifting-marching jet engine 4 and flashing beacon lights 5. On the struts of the pylons 6, float skis 7 are installed. Elevon nozzles 8 are installed in the tail section of the wing, in the cavities of which gas yaw wheels 9 are mounted. In front of the wheel 10 of the main rack 6 there is a parking ski-redan 11, behind the wheel is a taxiing ski-track stabilizer 12. A lock-capture of the mooring cable 13. is installed on the rear of the fuselage 13. The cockpit of 14 pilots is located in the nose of the fuselage.

Work

The engine 4 of the amphibious aircraft was launched, the air-gas steering wheels 9 transfer the mass of the glider 1 to the main struts of 6 wheels 10. When resting on wheels 10, the aircraft is brought to the runway. Taxiing the aircraft on a dirt platform is done by changing the thrust vector of the gas rudders 9 or braking one of the wheels 10. When taking off and landing on the ground and water, taxiing ski is working - track stabilizer 12. When leaving open water for land, ice, snow, nasal parking skiing -redan 11 with wheels 10 of the main struts 6.

In open still water, the wheels of the main support posts 10 are hidden in the shadow of the ski redans 11, in the planing mode with a two-point support on the water surface with the control of air-gas rudders 8, 9, the amphibious airframe has an increase in the lift coefficient and a decrease in drag, t .e. the highest efficiency during operation.

Claims (1)

Amphibious aircraft containing a glider, comprising a water submersible hull, a trapezoidal thick wing, a ski-wheel landing gear, a propulsion engine, elevon nozzles, a gas-dynamic boundary layer control system, a take-off and landing device, a gas yaw wheel, a wing center wing, flashing lights a beacon and a lock-capture of the mooring cable, characterized in that the glider is made in the form of a wide-body low-wing, on the pillar racks of which are mounted on the chassis of a catamaran ski-floats with wheels of the main racks, this nasal parking ski-redan is installed in front of the wheel, and the shadow stern taxiing ski - track stabilizer - is installed behind the wheel.

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