FL-339

Con el Fl-282 desarrollado y en producción, Anton Flettner le solicitó al RLM la aprobación para poder desarrollar su próximo emprendimiento, el Fl-339. El trabajo comenzó en 1944 y era un helicóptero mas grande y con mayor capacidad de carga que el Fl-282. Utilizaba el mismo rotor pero con un diámetro mas grande (13,20 metros). Se usó un nuevo motor y una nueva transmisión. El motor era un Argus As 10 C en “V” de 8 cilindros y 240 hp, situado sobre la cabina. La cabina era descubierta y estaba diseñada para llevar dos plazas espalda contra espalda, se le dispuso un estabilizador vertical y un tren de aterrizaje triciclo fijo. Debido a los eventos de la guerra la construcción de este modelo no se pudo llevar a cabo.

With the Flettner Fl-282 developed and ready for series production, Anton Flettner asked the RLM for the approval to produce his next helicopter design, the Flettner Fl-339. Design work on the Fl-339 began in 1944 and was for a helicopter with a higher load capacity than that of the Flettner 282 . The prototype machine used the same rotor arrangement as the Flettner 282, however with a greater rotor diameter of 13.20 m. A new engine and transmission was designed- to incorporated the new rotors to the helicopter body. A completely new power transmission went over a double worm gear. For this reason the engine, a Argus As 10 C air-cooled v-engine with eight cylinders and 1 x 240 HP take-off power was situated in a car above the cab. An uncovered crew cab was positioned under the engine and transmission, with a sloped-end arranged vertical stabilizer. A normal horizontal stabilizer was provided. The crew cab was designed to carry two crew members, in a back-to-back seating arrangement. Landing gear consisted of a rigid tricycle chassis. Because of the deteriotating war events the construction on the Fl-339 could not be carried out and all design work ended with the collapse of Germany in 1945.

Thanks to germanvtol.com

Characteristics Características	Information Información	Characteristics Características	Information Información
First Flight Primer Vuelo	1944	Engine Motor	1 Argus As 10C
Seating Capacity Plazas	1 / 1	Power Potencia	240 HP
Empty Weight Peso Vacío	Lb	Hover Ceiling O.G.E. Estacionario O.G.E	Ft
Maximum Weight Peso Máximo	Lb	Hover Ceiling I.G.E. Estacionario I.G.E	Ft
Vel. Cruise Vel. crucero	Kts	Service Ceiling Techo de Servicio	Ft
V.N.E. V.N.E	Kts	Maximum Range (Std) Alcance (Std)	NM