The Great Planes 'Viper' Pylon Racer and Andy's modifications

The Viper is a great way to go pylon racing. The price of the Viper kit is also very good. It can be purchased for $200 if you shop right. This is great value for such a well presented kit.

It fits the Sportsman Class category which is the least demanding class to compete in. If you can fly a low wing sports model you can fly Sportsman with a Viper and be competitive if it is set up right.

It is also an ARF so there’s not much work to get a the model in the air. What’s more as far as ARFs go it is one of the best constructed on the market right down to the carbon fibre wing reinforcement.

Unfortunately in competition the Viper does have a few downfalls. The following modifications can be done as the model is constructed and help to avoid unreliability in the airframe at a later date.

Ok so go to it. If you have any queries please direct them to me through the webmaster and I will be happy to respond. Cheers



Mod 1: Reinforcing the firewall 1

Download pdf version (page 1 here)

Mod 2: Reinforcing the firewall 2

Download pdf version (page 2 here)

Mod 3: Radio bay alterations

Download pdf version (page 3 here) and (page 4 here)

Mod 4: Wing and V tail incidence

Download pdf version (page 5 here)



For more tips on setting up the Viper for competition go to the NSW Pylon racing website or click (here)




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