The FMA I.Ae. 37 was a prototype jet fighter developed in

Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...

during the 1950s. It never flew and was cancelled in 1960..

Development

Reimar Horten began work on the I.Ae. 37 around 1952, after his earlier flying wing projects were cancelled in 1951. This was a single-engined jet fighter that used a

Delta wing A delta wing is a wing shaped in the form of a triangle. It is named for its similarity in shape to the Greek uppercase letter delta (letter), delta (Δ). Although long studied, the delta wing did not find significant practical applications unti ...

flying wing A flying wing is a tailless fixed-wing aircraft that has no definite fuselage, with its crew, payload, fuel, and equipment housed inside the main wing structure. A flying wing may have various small protuberances such as pods, nacelles, blis ...

structure with lateral engine inlets on each side of the nose. Wind tunnel tests began in 1953 as did testing of scale models at speeds up to . A full scale glider was built and made its first flight on 1 October 1954. Most unusually the pilot lay prone and looked out through the clear nose. Flight performance was deemed excellent and manufacture of a prototype powered by a

Rolls-Royce Derwent The Rolls-Royce RB.37 Derwent is a 1940s British centrifugal compressor turbojet engine, the second Rolls-Royce jet engine to enter production. It was an improved version of the Rolls-Royce Welland, which itself was a renamed version of Fran ...

V began in 1955. This engine was selected as it was readily available, but lacked the thrust desired for the fighter. The glider was modified with a normal cockpit in 1956. Shortly afterwards the program was split with the current aircraft becoming a subsonic trainer and a new, more powerful fighter, designated as the I.Ae. 48, with two podded engines under the wings and intended to reach Mach 2.2 (2,700 km/h). However, both projects were cancelled in 1960 as an economy measure, only a year before the I.Ae. 37 was to fly.

Specifications (I.Ae. 37)

References

Notes

Bibliography

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I.Ae 37

I.Ae. 37 schematic
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External links