"Nakajima Ki-49 Donryu \"Helen\"" . . "Ki-49 Helen" . . . . "819" . . . "Nakajima Ki-49 Donryu" . . "Ki-49" . . . . . . . . "Nakajima Ki-49 ''Donryu''" . . . . . "Nakajima Ki-49" . "Nakajima Ki-58" . "Nakajima Ki-49" . . . . "1944" . . . "Nakajima Ki-49 Helen" . . "1941" . . . "Nakajima Army Type 100 Heavy Bomber" . "Ki-80" . . . "Nakajima Ki-49 Donryu Army Type 100 Heavy Bomber" . "Ki-58" . . . . "Helens" . . "Nakajima Ki-49 ''Donryu'' Army Type 100 Heavy Bomber" . . . .