Convair Model 48 Charger

In 1959, two United States Marine Corps officers developed the concept of a small low cost aircraft capable of providing close air support to the U.S. Marines, capable of operating from roads close to the battlefield, the concept being known as the Light Light Marine Attack Aircraft (L2VMA). As interest in such an aircraft grew, with interest from the US Army for a similar type, the Convair Division of General Dynamics started studies into counter-insurgency aircraft in 1961. In 1963, the various requirements were merged into a tri-service specification for a Light Armed Reconnaissance Aircraft (LARA), to be used not just by the U.S. Marines and Army, but also by the United States Air Force for counter-insurgency and forward air control roles, and to be available for export. The outer trailing-edge flaps doubled as ailerons, which were supplemented by spoilers at low speed. The aircraft was fitted with a large, all-moving tailplane which attached to the vertical fins located at the ends of the tailboom(s), with the tailplane having somewhat greater span (20 ft (6.1 m)) than the distance between the tailbooms. Pilot and observer sat in tandem under a sliding canopy, while the rear fuselage held a cargo bay with a hinged tail cone capable of carrying 2,000 lb (910 kg) of cargo, which could include a complete PT6 engine, or five paratroopers, in extremely cramped conditions, with a sixth paratrooper in the observer's seat. Four 7.62 mm machine guns were mounted in pods on the side of the fuselage, while 2,000 lb (910 kg) of external stores, including bombs, rockets and gun pods, could be carried on hardpoints under the wings and fuselage. To meet the specification's requirements for amphibious operations, it could be fitted with two large floats. ==Operational history==

Convair started construction of a prototype as a private venture before a winner of the LARA competition was announced. In August 1964, the US Navy announced North American Aviation's design, the NA-300 (later to become the OV-10 Bronco) as the winner of the LARA competition. The U.S. Marine Corps and U.S. Air Force favored the Charger, however, and protested against the U.S. Navy's decision, and Convair continued construction of their prototype, which made its maiden flight on 25 November 1964. The Charger was awarded a 100-hour joint service flight test contract where the prototype would be flown by representatives of the U.S. Navy, Marine Corps, Army and Air Force. If orders followed, it was planned to build the production aircraft with a deeper and longer fuselage allowing full dual controls to be fitted. The prototype crashed on its 196th test flight on 19 October 1965, owing to pilot error by its U.S. Navy test pilot, however, and further development was abandoned. ==Specifications (Long-span wings) ==