TsAGI - BRATUKHIN 11-EA

Experimentos con el rotor del 5-EA habilitaron a Bratukhin a construir grandes mejoras y un helicóptero mas grande y pesado. El motor fue ubicado en la parte frontal, junto con un radiador y un ventilador para el mismo. El rotor principal fue el mismo del 5-EA , pero los rotores de mando en las alas (en realidad el 11-EA tenía una apariencia de monoplano con un rotor de helicóptero y dos hélices tractoras sobre las alas). Voló solamente atado, dado el muy complicado sistema de control. Un aparato construido.

Experiments with 5-EA rotor allowed Bratukhin to build a substantially bigger and heavier aircraft. The engine was mounted in the front end of fuselage, together with a cooling fan and radiator. The main rotor was same as on the 5-EA, but control rotors were placed on the wing (actually 11-EA had an appearence of a monoplane with helicopter rotor and two tractor propellers on the wing). Controls were included both for helicopter and airplane 'components' of the system. It was flown on the tether only, due to over-complicated control system. Only one was built.

"History of aircraft construction in the USSR" by V.B.Shavrov
English translation by A.Savine (Correction by David Bonar)

Characteristics Características	Information Información	Characteristics Características	Information Información
First Flight Primer Vuelo	1936	Engine Motor	1 Conqueror
Seating Capacity Plazas	1 / 1	Power Potencia	630 HP
Empty Weight Peso Vacío		Hover Ceiling O.G.E. Estacionario O.G.E
Maximum Weight Peso Máximo	260 Kgs	Hover Ceiling I.G.E. Estacionario I.G.E
Vel. Cruise Vel. crucero		Service Ceiling Techo de Servicio
V.N.E. V.N.E	85 Kts	Maximum Range (Std) Alcance (Std)	180 NM