Full Size Printed Peanut Scale Plans FOLKERTS SK-3 best Peanut Scale models ever design

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This listing is for Full Size Printed Plans

FOLKERTS SK-3

Overall winner of MODEL BUILDER's 1977 Parcel Post Proxy Peanut contest, this has to be one of the best Peanut Scale models ever designed. Plans show "heavy" and "light" versions

Full size Printed plan on a sheet 20” x 14” sheet

Seven Pages of notes and photos

Peanut Scale

Wingspan 13”

Power Rubber

By KURT ENKENHUS

Overall winner of MODEL BUILDER's 1977 Parcel Post Proxy Peanut contest, this has to be one of the best Peanut Scale models ever designed. Plans show "heavy" and "light" versions.

What made this plane so remarkable? Details of the fascinating development-of the SK-3, as well as Bjorn Karlstrom's three-views on which my plans were based may be found in the February, 1973 issue of American Aircraft Modeller. The aerodynamic features which enshrined the SK-3 in air racing history also give it superlative performance potential as a 13 inch wingspan Peanut scale model. The low aspect ratio wings of generous area, long fuselage, and clean lines result, in a model of light wing loading when preliminary calculations suggested that two minute flights should be obtainable if the total weight could be kept to 2 pennies. Before discussing the construction methods which permitted this weight goal to be attained, let's spend a little time analyzing the performance of an indoor rubber-powered model airplane.

Cleveland, Ohio, 1937 ... the Thompson Trophy. With rumors of war already casting shadows over the Golden Age of aviation, they gathered here for a showdown to see who was the fastest in the world. While they all worshipped speed, a glance at the bulging cowls confirmed that most of them put their faith in brute force ... eight hundred horsepower or more of radial engine.

One man, Clayton Folkerts, an aeronautical genius, preferred to court the Goddess of Flight. His SK-3 Speed King, the "Pride of Lemont", boasted onIy a 400 horsepower Menasco Super Buccaneer, but the slim, in-line 6 was so smoothly housed that it was the sleekest racer there. The start ... and the SK-3 trails next to last! Then the Goddess smiled, and Rudy Kling, passing one after another of the eight aircraft ahead of him, flashed to a photo- finish victory at an average speed of 256.91 mph.

Thank you for your interest


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