Adam RA-15 Major

The Adam RA-15 Major was a French sporting plane developed and produced in the decade after World War II.

Adam RA-15 Major
Adam RA-15 Major in 1957
Role light sporting high-wing cabin monoplane
National origin France
Manufacturer Ets. Roger Adam
Designer Roger Adam
First flight 1948
Introduction 1948
Status Rights sold to Maranda Aircraft Company in 1957
Primary user private owners and aero clubs
Developed from Adam RA-14 Loisirs

Development

The RA-15 was developed in 1948 as a higher-powered successor to the Adam RA-14 Loisirs, utilising a number of refinements including a plywood-covered fuselage and an enlarged rudder. It was a side-by-side two-seater with dual controls, wooden construction and a fabric-covered two-spar wing which folded for storage in hangars. The Major was designed to use any flat-four engine in the 65-75 h.p. range.[1]

Production and operational history

A small series of Majors was produced in the late 1940s and early 1950s. The basic RA-15 was fitted with the 75 h.p. Regnier 4D-2 engine and the RA-151 had the 75 hp Continental C75 engine.[2] Two Majors were still active in 1965.[2]

Variants
RA-15 Major
RA-17
a modified single seat crop dusting variant of the RA-15.
Maranda BM3
Canadian production of the RA-17 by the Maranda Aircraft Company[3][4]

Specification (RA-15)

Data from [2]

General characteristics

  • Crew: 2
  • Length: 22 ft 11 in (6.99 m)
  • Wingspan: 34 ft 9 in (10.59 m)
  • Height: 7 ft 2 in (2.18 m)
  • Empty weight: 616 lb (279 kg)
  • Gross weight: 1,145 lb (519 kg)
  • Powerplant: 1 × Regnier 4D-2 four cylinder air-cooled engine , 75 hp (56 kW)

Performance

  • Maximum speed: 111 mph (178 km/h, 96 kn)
  • Cruise speed: 103 mph (165 km/h, 90 kn)
  • Range: 340 mi (547 km, 300 nmi)
gollark: The names don't correspond to actual dimensions now, though.
gollark: Although progress on that is slowing down.
gollark: Maybe it'll be practical *eventually*. We've got a-few-nanometres-or-so-accuracy fabrication for silicon stuff.
gollark: It's probably one of those things which could be very nice if you could actually make it at all somehow.
gollark: Fair. Maybe there's a gap in the market for better online teaching of this stuff, somehow.

References
Notes
  1. Simpson, 2001, p. 3
  2. Green, 1965, p. 34
  3. Janes all the World's Aircraft. 1967.
  4. William Green, Gerald John Pollinger. The aircraft of the world.
Bibliography
  • Green, William (1965). The Aircraft of the World. Macdonald & Co. (Publishers) Ltd.
  • Simpson, Rod (2001). Airlife's World Aircraft. Airlife Publishing Ltd. ISBN 1-84037-115-3.


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