Germany - Flettner Aircraft  (Flettner Flugzeugbau GmbH / Anton Flettner GmbH)

Flettner Aircraft

Flettner Fl 184 reconnaissance helicopter, prototype
Flettner Fl 185 reconnaissance helicopter, prototype
Flettner Fl 265 reconnaissance helicopter, prototype
Flettner Fl 282 Kolibri (Hummingbird), reconnaissance helicopter
Flettner Fl 339 reconnaissance helicopter, project

Flettner Projects