A Kit describes an unassembled model, arrives as packages of parts which must be assembled, as opposed to an ARF, or Almost Ready to Fly, which is mostly pre-assembled or a PNP Plu...

Model rolls 90 degrees at a uniform rate. The center of gravity is held at a constant altitude during the entire maneuver using rudder for altitude and elevator for rudder.

The Kv number’s useful because it let’s you figure out how many volts you need to achieve a certain RPM, or vice versa. For an example, a 980 Kv motor powered by an 11.1 volt bat...