The Velox Revolution is a full-scale aerobatic aircraft produced by Charlie Wolff at Velox Aviation. It was among the first piston-engine aerobatic designs to be produced from a majority of composite airframe parts. The Velox has been in production since the mid-1990's, and as of 2017, Charlie had completed 10 copies, in both Revolution I \(single-place cockpit\) and II \(dual cockpit\) versions.
The Velox is an interesting design subject for an aerobatic model because it's "right" in the full-scale design, \(mid-low wing, low stab, low thrust line\) and does not have to be molested much to optimize it as a model.

Wingspan: 52 inches
Length: 51.5 inches with spinner
Wing area: 565 square inches
Weight: 3.75-4 lbs.

Electric Power System
Xpwr T3910 electric motor
Airboss 80 amp electronic speed control
14 x 7 or 15 x 7 electric prop
4S 2500-3300 mAh batteries