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Reactors have established a reputation for classic lines and a wide flight envelope, and the Reactor Biplane .61 GP/EP ARF continues the tradition! It's based on the Reactor Bipe EP, but larger in size and with the capability for smooth sport maneuvers and 3D aerobatics with an outrunner brushless motor as well as a 2-stroke or 4-stroke glow engine. Lots of fiberglass parts add quality touches, and pre-hinged ailerons speed final assembly. It's the rock star of hybrid ARFs!

  • From sport to pattern to 3D — this beauty does them all.
  • Excellent performance with a glow engine or brushless electric power.
  • Sized and styled to rock!
The servo mount cutouts in the fuselage are sized for “mini” servos. Templates are included for enlarging them to accommodate standard size servos as well.  

“This beautiful bipe continues the Reactor legacy of exceptional performance and superb styling. It can fly sport, pattern and 3D aerobatics equally well, and does it all with your choice of glow engine or brushless motor power.”

- Don Anderson, Founder
  Great Planes Model Manufacturing

  A two-stroke .61 or 4-stroke .70-.91 engine provides plenty of glow-powered muscle for aerial maneuvers.

An out-runner brushless electric motor delivers equally impressive performance with less noise and cleanup.   The large, airfoiled tail surfaces allow for smooth sport flying all the way up to incredible aerobatics, before slowing down for soft 3-point landings.   Quality construction is evident in the fiberglass cowl, wheel pants and upper wing mounting pylon. The pylon is glued in place to speed wing installation, with the servo leads inside for a cleaner, more aerodynamic look.

Stock Number: GPMA1023
Wingspan: 48 in (1220 mm)
Wing Area: 1145 in² (73.9 dm²)
Weight: 7-7.5 lb (3.17-3.40 kg)
Wing Loading: 14-15 oz/ft² (43-46 g/dm²)
Length: 58.5 in (1485 mm)
Requirements: 4-5 channel radio w/7-8 servos; 2-stroke .61 cu in or 4-stroke .70-.91 cu in engine; OR RimFire™ .80 (50-55-500 kV) out-runner brushless motor, 60A brushless ESC & (2) 11.1V 3200mAh (3S) 20C LiPo battery