Coupla guys at work are goofing with the four-electric-engined version of
these.... the "Air Hog RC Titan." They found them at Costco for about $60.

The scary thing about these is that there is no aerodynamic control of these
planes. Nothing moves except the propellers. All the joystick does is adjust
the speed of the engines.... push the lever to the right, and the left-side
engines turn faster. Pull back on the stick and all the engines rev up.

Needless to say, this results in some highly erratic...yet highly
entertaining...flights. The planes themselves are light but incredibly impact
resistant. They haven't actually broken one yet, even with some fairly nasty
crashes.

Ron Wanttaja