More "C" 's - More Speed
by Bob Violett

The Thunder Power 40C Pro Series LiPo's really deliver superior performance.  Since in-flight airspeed is easy to document with Eagle Tree Telemetry, and since top end speed is the ultimate measure of airframe and power system efficiency, we thought it appropriate to put these batteries and the EVF 5612 to the test.

A down hill entry, followed by a 1,000 ft low level run, produced 235 mph on the 3rd attempt in the same flight.  The first two trial runs were in the mid 220's.

The Camo Electra (built from an early kit) with its "Extended Gear Door option" is a clean bird and the control inputs must be smooth to minimize drag.

We make these special runs occasionally to confirm that the BVM system is state-of-the-art.  To participate in this activity, the airframe preparation, control rigging, and pilot skills must all be excellent.  There is little room for error.