Goodyear built additional G-class airships for the Navy during World War II to support training needs.
[1] After purchase on September 23, 1935, G-1 was in constant use until it was lost in a mid-air collision on 8 June 1942 with another blimp, the L-2.
The two blimps were conducting experimental visual and photographic observations during night flight.
Although twelve people were killed in the crash, G-1 had demonstrated her capabilities as a trainer and utility blimp.
The envelope size of these new G-class blimps was increased over that of G-1 by 13,700 cu ft (390 m3).