Luftfahrzeug-Gesellschaft, Parseval, August von, Stöwer, Willy, 1864-1931, ill, Gebr. Radetzki, printer · Berlin : Luftfahrzeug-Gesellschaft m.b.H. · leaf 12
The dirigible P II at Bitterfeld. The driving mechanism was so designed that either motor by itself can drive both propellers, both motors working in conjunction can drive both propellers or again either motor can drive one propeller. Since there are two couplings, it is quite easy to uncouple the…
