These models are replicas of full-scale aircraft. They are judged for workmanship, accuracy of detail, and other factors. They must fly and are scored on their ability to take off, land and perform other tasks. Precision Scale aircraft are the most detailed models and must be accompanied with airplane documentation showing the model's fidelity to the full-scale aircraft. Sport Scale requires less-precise detailing, and the aircraft are judged from a distance. Profile Scale is similar to Sport Scale, with the added provision that the models have profile (slab) fuselages. In Sport and Profile Scale, flying increases in importance.
With flaps partially down, the author’s RV-4 is being flown in the Sport Scale class (Lee Ray photo).
Ed Mason carrying his B-17 that he flew in Fun Scale
Ed Mason’s Constellation with four glow engines.
Peter Bauer's 2024 World Champion model.
Lynn Boss flying his Top Flite Gold Edition P-47 Thunderbolt that uses a modern 2.4 GHz radio for throttle, flaps, retracts and bomb drop. OS-91 four stroke for power.
Ed Mason earned the Overall Champion award at the 2024 CL Scale Nats.
Christopher DeGroff flying his 1/2a Scale F4F Wildcat, built from the Brodak kit.
Allen Goff’s F4B Nieuport 11 with a gas-powered engine.
