In Service: 
                    
                    
                    
                    First Flight: 
                    Manufacturer: Flettner
                    Number built: 
                    
                    
                    
                    Type: Helicopter reconnaissance, transport project
                    
                    
Crew: 1 man 20 passengers 
                    
Length: m
                    
Rotor diameter: 13.2 m
                    
Disc area m²
                    
Height: m
                    
Empty: kg
                    
Loaded: kg
                    
Engine: 1 × 
Argus 
                    As 10C 8 cylinder air cooled 90º inverted Vee piston 
                    engine producing up to 240 hp
                    
Maximum speed: km/h
                    
Range: km
                    
Service ceiling: m
                    
Armament: 
                    Bomb load up to 
                    
Electronics: 
                    Operators: Luftwafe
                    
Variants: 
                    
                    Other: Projects
                    Articles: 
                    
                    
                    
                    The Flettner Fl 339 was a single engine twin rotor reconnaissance 
                    and transport helicopter project for about 20 passengers 
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    The Warplanes of the Third Reich.
                    ISBN-10: 0385057822
                    
                    German Aircraft of the Second World War.
                    ISBN-10: 0370000242
                    
                    Hitler's Luftwaffe.
                    ISBN-10: 051718771X
                    
                    For a complete list of 
sources