The Friedrichshafen G.III was a heavy bomber designed and manufactured by Flugzeugbau Friedrichshafen. They were used by the German Imperial Air Service during World War I for tactical and limited strategic bombing operations. After the end of the war a number of Friedrichshafen bombers were converted into transport aircraft while a small number also saw service as dedicated airliners.
Friedrichshafen G.III
Friedrichshafen G.IIIa on display in England after the war
The Gotha G.IV was a heavy bomber used by the Luftstreitkräfte during World War I. It was the first mass-produced relatively large airplane.
Gotha G.IV