In order to improve range, endurance, and war load still further, Goodyear designed the M Class, the last of the wartime designs to be built. Of 625,000 cu.ft. capacity and powered by two Pratt & Whitney Wasps of 600 h.p., twenty two were originally ordered. First flight of M 1 was on 27 October, 1943, but with the improving anti¬submarine situation after 1944 only three more were completed (M 2 to 4). They were used after the war on airship research and development work and XM 2 was flown with a retractable tricycle landing gear which was used on later naval airships.
M-1
Volume: 625,000 cu ft.
GZ 5
Volume: 647,000 cu ft.
Length: 310ft.
Max Dia: 73ft.
Engines: 2 x 600 h.p. Pratt & Whitney R 1340 AN 2 Wasp.
All Aero 