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Tech Notice
Viper 500 ARF

Almost-Ready-to-Fly .25-.46 Size Sport/Racing Model

Viper 500

Strike at the competition!

With a 2-stroke .25 and separated elevator/rudder control, the Viper 500 is a fun, everyday sport model. Use V-tail mixing and a larger engine, and it becomes a fiery, ultra-competitive "club racer"...and it's AMA-legal for Quickie 500 in 424 and 428 classes!

World-famous airfoil designer Dr. Michael Selig created the airfoil specifically for Quickie 500 racing. Great Planes adds such performance-boosting "extras" as a perfectly formed engine mounting plate and—to minimize drag—specially engineered wheels and mounting hardware and recessed wing holddown bolts.

  • Assembles in as little as 6-8 hours!
  • Carbon fiber reinforced, wood/foam wing (on white and red versions) arrives covered in Top Flite® MonoKote® film.
  • Bolt-on tail provides accurate alignment for fast assembly, and can also be removed for easy transportation.
  • Includes "multi-fit," backplate-type, metal engine mount and low-drag nylon wheels.
  • Available precovered in red or white MonoKote or ready-to-cover.

engine mount
The specially designed aluminum engine mount accepts virtually any engine in the Viper 500's recommended range. A fuel tank and generous package of Great Planes' quality hardware are also provided.
parts layout
The Viper 500 comes mostly prebuilt—and fully prepared for high-G action! The foam-core wing features carbon-fiber reinforcement and balsa sheeting that's applied with epoxy for security and stiffness. The center section is wrapped in a double layer of fiberglass cloth.

Stock Numbers:
    GPMA1265 White
    GPMA1266 Red
Wingspan: 52 in (1320 mm)
Wing Area: 504 in² (32.5 dm²)
Weight: 3-3.4 lb (1.36-1.53 kg)
Wing Loading: 13.7-15.4 oz/ft² (42-47 g/dm²)
Length: 41.3 in (1050 mm)
Engine Required: 2-stroke .25-.46 cu in
Radio Required: 4-channel for sport flying; 6-channel or higher for racing, with V-tail mixing; 4 standard servos
Viper White: Parts Listing - Accessories Needed
Viper Red: Parts Listing - Accessories Needed

PDFProduct Manual

PDFHow to Tighten Covering on ARF Models

MPEG View the video clip:
1.8MB, 0.7MB

Technical Data: control throws, center of gravity, etc.