The Friedrichshafen G.IV and G.V (factory designations FF.61 and FF.55) respectively were heavy bombers that were designed and manufactured in Germany during World War I by Flugzeugbau Friedrichshafen.
Two German-designed, WWI-era heavy bombers, the G.IV and G.V (designated as FF.61 and FF.55), were produced by Flugzeugbau Friedrichshafen.