A two-fuselage aircraft is an aircraft that has two full fuselages with cabs, center sections and (usually) tail.
Reasons for choosing this design
- Seaplane aerodynamics optimization: a catamaran from two flying boats was obtained. It was distributed in the interwar period ( Savoia-Marchetti S.55 , MK-1 ).
- Ultra-long aircraft with good wing elongation and a rigid structure, together with a two-beam scheme ( DB-LK , Pipistrel Taurus G4 ).
- A heavy aircraft built from two copies of existing models. This was often practiced at the end of World War II ( North American F-82 Twin Mustang or Messerschmitt Me 609 ).
- Cargo transportation on external sling. The first experiments began with the transportation of shuttles , a new wave began with air launch systems ( WhiteKnightTwo , Scaled Composites Stratolaunch Model 351 ).