EAA BIPLANE

Gemini Sparkle

Key Takeaways:

  • The aircraft is a single-seat sport biplane developed by the EAA starting in 1955, with its prototype first flying in 1960 after being built by high school students.
  • Powered by an 85 hp Continental engine, it is considered a lighter predecessor to the Acro-Sport with similar construction.
  • Its performance includes a top speed of 125 mph, a cruise speed of 110 mph, and a range of 200 nautical miles.
  • Plans for this aircraft are no longer marketed.
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STANDARD DATA: Gross weight: 1,023 lbs.; Emptyweight: 640 lbs.; Fuel capacity: 12 gals.; Wingspan: 20 ft.; Length: 17 ft. PERFORMANCE: Top speed: 125 mph; Cruise speed: 110 mph; Stall speed: 55 mph; Climb rate: 1,000 fpm; Takeoff run: 500 ft.; Landing roll: 550 ft.; Range: 200 nm.

The EAA decided in 1955 to develop a single-seat sport biplane as a service to its members. The prototype was built as a classroom project by students of St. Rita’s High School in Chicago. It flew for the first time in 1960. The plane is, in a sense, the predecessor to the Acro-Sport, the difference being that the A-1 Biplane is lighter and uses a smaller engine, an 85 hp Continental. Construction is the same. Plans are no longer marketed.

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