In competition aerobatics, we’re concerned only about the execution of the maneuver, period. For example, loops must be perfectly round and centered, and precision is the key to achieving the highest score. In scale competition, however, you have to execute a loop just like the full-size aircraft would have performed it. For example, a loop done by an old vintage biplane would be more egg-shaped, and that’s the way a scale flier has to do it! A heavy metal warbird from WW2 would do the loop much taller and rounder. It has to fit with the performance of the airplane ...
RC Flight Tech — Flying Scale Maneuvers
