A transverse-rotor aircraft is an aircraft with two large horizontal rotor assemblies mounted side by side.
An MV-22B Osprey lands aboard the USS Iwo Jima (LHD-7).
Hanna Reitsch in Fw 61 V2
An Mil V-12 at Monino Central Air Force Museum (Moscow)
A tandem-rotor aircraft is an aircraft with two large helicopter rotor assemblies mounted one in front of the other in the horizontal plane. This configuration is mainly used for large cargo helicopte
Boeing Vertol CH-46 Sea Knight
Columbia Helicopters Boeing Vertol 107-II and Boeing 234
A Piasecki H-21B in the early 1960s
A Yakovlev Yak-24 at Central Air Force Museum