Grumman C-1 Trader
|A C-1A Trader from Naval Air Station, Willow Grove, Pennsylvania in 1987|
|First flight||4 December 1952|
|Primary user||United States Navy|
|Developed from||Grumman S-2 Tracker|
|Developed into||Grumman E-1 Tracer|
Design and development
The C-1 Trader grew out of a need by the United States Navy for a new anti submarine airplane. In response to this Grumman began development on a prototype twin-engine, high-wing aircraft which it designated the G-89. In 1952 the Navy designated this aircraft the XS2F-1 and flew it for the first time on December 4 that year. During the rest of the 1950s three major variants emerged, the C-1 Trader being one of them. The C-1 (originally the TF-1) was outfitted to carry nine passengers or 3,500 pounds (1,600 kg) of cargo and first flew in January 1955.
Throughout the 1960s and 1970s the C-1 Trader carried mail and supplies to aircraft carriers on station in the Pacific Ocean during the Vietnam War and also served as a trainer for all-weather carrier operations. Over its production life 83 C-1 Traders were built, of which four were converted into EC-1A Tracer electronic countermeasures aircraft. The last C-1 was retired from USN service in 1988; it was the last radial engine aircraft in U.S military service. As of 2010, approximately ten were still airworthy in civil hands, operating as warbirds.
In August 2010, Brazilian Naval Aviation announced that it will buy and modernize eight C-1 to serve in carrier onboard delivery (COD) and aerial refueling roles for use on its aircraft carrier São Paulo.
- Carrier Onboard Delivery version of the S-2 Tracker with enlarged fuselage for nine passengers, redesignated C-1A in 1962, 87 built.
- Electronic Countermeasures conversion of the TF-1, redesignated EC-1A in 1962, four conversions.
- Airborne Early Warning project that was developed in the WF-2 Tracer.
- TF-1 redesignated in 1962.
- TF-1Q redesignated in 1962.
- KC-2 Turbo Trader
- Marsh Aviation modernization project for Air-to-Air Refueling, requested for the Brazilian Navy.
- C-1A C-1, BuNo 136754, on static display at the National Museum of Naval Aviation, NAS Pensacola, Florida
- C-1A, BuNo 136790, on static display at the Grissom Air Museum, Grissom ARB (former Grissom AFB), Indiana
- C-1A, BuNo 136792, on static display at the Quonset Air Museum, (former NAS Quonset Point), North Kingston, Rhode Island. This aircraft was modified with the Grumman E-1 Tracer type radome assembly (but no radar) and twin tails and served (under the designation XTF-1W) as the aerodynamic prototype for the E-1. After testing, it reverted to the transport role, (as C-1A) with radome removed but retaining the twin tails. Throughout, this aircraft retained the S-2/C-1 upward folding wings, not the E-1 wing fold which were necessitated (by the radome atop the fuselage) to fold wings back along the sides of the fuselage.
- C-1A Trader, BuNo 146034, on static display at the Wings of Freedom Aviation Museum, former NAS Willow Grove, Horsham, PA
- C-1A, BuNo 146036, on static display on the USS Midway Museum, San Diego, California.
- C-1A Trader, BuNo 136778, an airworthy example, based out of Eufaula, Alabama.
- C-1A, BuNo 136781, is also an airworthy example, based at Pacific Coast Air Museum, Santa Rosa, California.
- C-1A, BuNo 146044, is another airworthy example, privately owned in Topeka, Kansas.
- Crew: two
- Length: 42.2 ft (12.9 m)
- Wingspan: 69.6 ft (21.2 m)
- Height: 16.3 ft (4.9 m)
- Empty weight: 18,750 lbs (8,504 kg)
- Max. takeoff weight: 29,150 lbs (13,222 kg)
- Powerplant: 2 × Wright R-1820-82WA Cyclone 9-cylinder radial piston engine, 1,525 hp (1,137 kW) each
- Related development
- Aircraft of comparable role, configuration and era
- Brazilian navy buys Traders
- "Brazilian Traders set for modernisation" Fight Global, 14 Dec 2011 Retrieved: 23 December 2011
- [1976.035.001] Aircraft - 'C-1A Trader'
Media related to Grumman C-1 Trader at Wikimedia Commons