RE: K&B Sportster .65 (target drone engine)
I was in armor in the Army, and we shot at these target drones when we did the defensive tables (TTVI for the tankers out there) and they were hard to hit with the .50 on the M60 and the M1 tanks.
The Bradley Fighting Vehicles could bring them down with their coax 7.62, as their turret slewed pretty fast to keep up with the drones. The local Air Defense unit flew them.
Here around Fort Knox, KY, we still have a number of them flying in the clubs. I have one I fly every new years day. Landing gear, flaps, and a Super tiger .91.
There were two that the army used. One was by Carl Goldberg, like in the picture in a previous post. The other was made by rs technologies.
The major difference was that the RS Technology bird has the motor mounted sideways on an aluminum frame. It also has an aluminum spar. We have tried to snap the wings, but she just hangs in there.
We don't use the K&B motors, for obvious reasons.
billrad