Gnome-Rhône 9A Jupiter French licence production primarily of 9A, 9Aa, 9Ab, 9Ac, 9Akx and 9Ad variants. Siemens-Halske Sh20, Sh21 and Sh22 Siemens-Halske took out a licence in Germany and produced several versions of increasing power, eventually resulting in the Bramo 323 Fafnir, which saw use in wartime models. Nakajima Ha-1 Kotobuki In Japan, the Jupiter was licence-built from 1924 by Nakajima.