20" KK Ercoupe

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First manufactured before the war in 1937, the ERCO Ercoupe was designed to be the safest fixed wing aircraft available at the time. Given that production in various forms continued until 1970, it's safe to say the Ercoupe lived up to its expectations!


  • Wingspan: 20" (50.8 cm)
  • Power system: Rubber; Free flight
  • Manufacturer: KK replica
  • Designed by: Albert E Hatfull
  • Difficulty: Beginner


This kit is a laser-cut replica of the original KK Small Flying Scale model of an Ercoupe. Construction of the model from this kit uses the traditional method of "stick and tissue", that consists of a built up balsa wood skeleton (framework), covered with a tissue skin. The balsa frameworks are built over a plan that is printed at the exact scale of the model, which is in essence a real engineering drawing. Power is provided by rubber strip motor that is wound up before flight. Free flight means just that - once the model is launched, it is on its own. It must follow a predetermined flight path established when the model is initially adjusted for flight or "trimmed". This type of traditional building technique and flying requires a degree of patience and skill, but is extremely rewarding.


  • Balsa wood sheets with precise laser cut parts
  • Strip wood.
  • One 150mm diameter plastic propeller.
  • One pre-bent motor hook and shaft.
  • One low friction plastic nose bushing for the propeller
  • One 22mm plastic nose wheel and two 25mm plastic main wheels.
  • Acetate sheet for cabin windows.
  • Piano wire for the main undercarriage and nose wheel.
  • One motor peg. F.A.I. 3/16" rubber motor strip.
  • Tissue to cover the model.
  • Full size printed plan with instructions.


  • Wood glue
  • Paints
  • A decals/markings sheet is no longer available and not included in this kit.

Model shown above, expertly built and photographed by Andrew Darby, features paint and markings not included in the kit.

20" (50.8 cm)