Separate elements of the design were assigned to each company; MBB were responsible for developing the rotors (these were based on the rigid rotor system previously used on MBB's Bo 105), tailboom, flight controls and hydraulic system while Kawasaki undertook the development of the landing gear, airframe, main transmission, electrical system and other minor components.
Elementos separados do deseño foron asignados a cada compañía; MBB foi a responsable de desenvolver os rotores (estes estaban baseados no sistema de rotor ríxido usado anteriormente no MBB Bo 105), a pluma de cola, os controis de voo e o sistema hidráulico, mentres Kawasaki encargouse de desenvolver o tren de aterraxe, a célula, a transmisión principal, o sistema eléctrico e outros compoñentes menores.