MILLER JM-2

Gemini Sparkle

Key Takeaways:

  • The JM-2 is a Formula I racing airplane with a unique design featuring the engine and main wings set aft of the pilot's cockpit, driving a pusher propeller.
  • It demonstrates high performance, including a top speed of 235 mph, a cruise speed of 190 mph, and a climb rate of 1,600 fpm, powered by a 100-hp Continental engine.
  • The aircraft is constructed with advanced materials, using honeycomb-reinforced fiberglass and resin for the wings and fiberglass panels for the fuselage.
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STANDARD DATA: Gross wt. 1,100. Empty wt. 630. Fuel capacity 12. Wingspan 15′. Length 19′. Engine 100-hp Continental.
PERFORMANCE: Top mph 235. Cruise mph 190. Stall mph 70. Climb rate 1,600. Takeoff run 1,500. Landing roll 2,000. Range 300.

Designed by J.W. Miller, the JM-2 took a different approach to Formula I airplane racing. Both the engine and main wings are set aft of the pilot’s enclosed cockpit. A Continental drove a pusher prop; the spinner took the place of the tailcone. Two sections of the vertical propeller shroud act as the vertical stabilizer, and the elevators are placed in T-tail fashion. The wings are covered with honeycomb material reinforced by fiberglass and resin. The fuselage is constructed from four fiberglass panels.

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