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).