DENEL ( SOUTH AFRICA )
Denel CSH-2 "Rooivalk" Denel XH-1
DOAK ( U.S.A. )
Doak VZ-4
DOBLHOFF ( GERMANY )
Doblhoff WNF 342
DOMAN ( U.S.A. )
Doman LZ-1A Doman LZ-5 / YH-31 / D-10B
DORNIER ( GERMANY )
Dornier Do-32 Dornier Do-132