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The Martin JRM Mars is a large, four-engined cargo transport flying boat designed and built by the Martin Company for the United States Navy during World War II. It was the largest Allied flying boat to enter production, although only seven were built.
The Glenn L. Martin Company, also known as The Martin Company from 1917 to 1961, was an American aircraft and aerospace manufacturing company founded by aviation pioneer Glenn L. Martin. The Martin Company produced many important aircraft for the defense of the US and allies, especially during World War II and the Cold War .
These flying boats became the backbone of the long-range aerial search and rescue efforts of the Coast Guard in the early post-war years until supplanted by the P5M Marlin and the HU-16 Albatross in the mid-1950s. [9] PBMs continued in service with the U.S. Navy following the end of World War II, flying long patrol missions during the Korean ...
It was basically a 40% enlargement of the Martin JRM Mars, weighing 250,000 pounds at takeoff and featuring a longer hull and wingspan, being powered by six radial piston engines. No powerplant types were revealed. The Martin 193 lost out to the Hughes H-4 Hercules, and after the end of World War II obviated the urgency for Sky Freighters ...
The Mars was converted by the Navy into a transport aircraft designated the XPB2M-1R. Satisfied with the performance, 20 of the modified JRM-1 Mars were ordered. The first of the five production Mars flying boats entered service ferrying cargo to Hawaii and the Pacific Islands on 23 January 1944. [50]
Martin JRM Mars: 23 Jun 1942: Flying boat: 7: 39.04 yards (35.70 meters) 66.71 yards (61.00 meters) 73.62 tons: 14.76 tons: Heaviest until the Junkers 390, Largest serial production flying boat Latécoère 631: 4 Nov 1942: Flying boat: 11: 47.57 yards (43.50 meters) 62.77 yards (57.40 meters) 70.27 tons: Pax: 46 Longest until the Convair B-36 ...
VR-2 initiated NATS transoceanic service on 15 May, from Alameda to Honolulu with a Sikorsky flying boat. VR-3, NATS's transcontinental squadron was commissioned on 15 July at the Fairfax Airport, Kansas City, Kansas with four DC-3s appropriated from Trans World Airlines. NATS also established its headquarters at Fairfax.
August 28 – The U.S. Navy Martin JRM-2 Mars flying boat Caroline Mars arrives in Chicago, Illinois, after a record-breaking nonstop flight of 4,748 miles (7,641 km) from Honolulu, Hawaii, in 24 hours 12 minutes with 42 people and a payload of 42,000 pounds (19,000 kg) on board.