MULTIPURPOSE AMPHIBIAN Russian patent published in 2005 - IPC

FIELD: aviation technique.

SUBSTANCE: the amphibian has a boat, in the stern of which from above a cargo door is made , a wing, a twin-fin tail unit, , a three-strut landing gear with fairings for wheels of main struts of the chassis in retracted position and engines of the power-plant. The engines of the power-plant are fixed on the forward part of each fin of the tail unit. The cargo door is situated on the section between front longerons of fins and the transom board of the boat. In the final parts of the wing swept pylons with carrier sponsons fixed on them are installed. The upper part of the hull of the boat is provided with cowls developed along the length. The front cowl is located in the zone between the front longeron of the wing and the cockpit of the aircrew and the back cowl - from back edge of the center-section of the wing up to the cargo door. The three-strut landing gear is fulfilled along the scheme with a tail strut and with developed forward fairings of the wheels of the main struts the chassis in retracted position. The fairings are fixed directly along the boards of the boat's hull in front of the redan and above water-line. In the stern of the boat there is a lifting-sinking mechanism, installed near the tail strut.

EFFECT: increases of air-and hydrodynamic qualities, reduces weight and decreases the length of the cargo door.

8 dwg