Martin Mars Marshall Mars

Martin JRM-1 Mars BuNo 76822 named Marshall Mars was delivered to the USN in February 1946. After delivery, it was converted and re-designated JRM-3. Assigned to squadron VR-2 and based at Naval Air Station Alameda in California, the Marshall Mars set a new world record for payload lifted on her second flight, carrying 27,427 pounds from California to Hawaii.

It was destroyed by an engine fire and sank on 5 April 1950 off Diamond Head, Oahu, Hawaii.