Designed originally as an Anti-Submarine weapons platform, The C-1 ''Trader'' evolved into a major cargo transport workhorse with The US Navy from 1955 to 1988. During The Vietnam War, ''Trader'' Aircraft were used to fly along The Coast of North Vietnam in counter-electronic warfare. The C-1 also participated in USMC Reconnaissance duties (Insertion). The ''Trader'' was crewed by (2). They were 43-feet long with a wingspan of 70-feet. They could support up to 13,000-pounds of cargo or passengers. Powered by Twin Wright R1820 9-cylinder Engines. The C-1 could maintain an airspeed of 287-mph. They operational Mission range was 1,300-miles with an operational ceiling of 18,000-feet. No weaponry was carried with The C-1 ''Trader''.