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G class blimp

G class
Type	Training airship
Manufacturer	Goodyear
Introduced	1935
Primary user	US Navy
Number built	10

The G-Class Blimps were a series of non-rigid airships (blimps) used by the United States Navy. In 1935, instead of developing a new design airship, the Navy purchased the Defender for use as a trainer and utility airship assigning it the designator G-1. The Defender was built by the Goodyear Aircraft Company of Akron, Ohio and was the largest blimp in the company’s fleet of airships that were used for advertising and as passenger airships. Additional G-class airships were bought during World War II to support training needs.

Operational history

After purchase on September 23, 1935, G-1 was in constant use until it was lost in a mid-air collision on June 8, 1942 with another blimp, the L-1. The two blimps were conducting experimental visual and photographic observations during night flight. Although twelve people were killed in the crash, the G-1 had demonstrated her capabilities as a trainer and utility blimp. As the Navy needed additional training airships during the World War II war time build up, a contract was awarded on December 24, 1942 for seven more G-class airships. These were assigned the designation Goodyear ZNN-G. (Z = lighter-than-air; N = non-rigid; N = trainer; G = type/class). The envelope size of these new G-class blimps was increased over that of the G-1 by 13,700 cubic feet.

Airships G-2 through G-5 were delivered by late 1943 and G-6 through G-8 followed in early 1944. They were used for training mainly from the two major lighter-than-air bases, NAS Lakehurst and NAS Moffett Field on the southern edge of the San Francisco Bay.

Specifications (G-1)

General characteristics

• Crew: 2-3
• Capacity: 7-8
• Length: 186 ft 8 in (56.94 m)
• Diameter: 42 ft 10 in (13.06 m)
• Height: 62 ft 0 in (18.90 m)
• Volume: 183,000 ft³ (5,182 m³)
• Useful lift: 4,115 lb (1,867 kg)
• Powerplant: 2 × Continental R-670-2 radials, 210 hp (157 kW) each

Performance

• Maximum speed: 57 mph (92 km/h)
• Cruise speed: 48 mph (77 km/h)
• Endurance: 16 hours  42 min

References

• Shock, James R. (2001). U.S. Navy Airships 1915-1962. Edgewater, Florida: Atlantis Productions. ISBN 0-9639743-8-6. 
• Althoff, William F. (1990). Sky Ships. New York: Orion Books. ISBN 0-517-56904-3. 
• Allen, Hugh (1943). The Story of the Airship (non-rigid). 

See also

Related lists

• List of airships of the United States Navy
  

v • d • e USN non-rigid airship designations 1947-1953 ZTG • ZPK • ZTL • ZPM • ZPN/ZWN

v • d • e USN non-rigid airship designations 1940-1946 ZNN-G • ZNP-K • ZNN-L • ZNP-M • ZNP-N

v • d • e USN non-rigid airship classes A • B • C • D • E • F • G • H • J • K • L • M • N see also: K-1

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