Gwright,

Thank you for the long response (appreciated). I guess I am a little different than most I have my timer set for 18 minutes (start just before takeoff) and can fly in the low 20 minutes. I usually fly an F3A routine, take a mental break and work on a few maneuvers, then fly the routine again, so 30 minutes available is not too different than my current setup (I probably have about 23 minutes if I fly the tank empty). I also try to practice 5-6 flights per day. Since the batteries can be charged in 1 hour, then I believe I would plan to have about 3 packs, flying and charging continuously to always have a pack available.

How long should I wait before charging a pack that just finished flying?

How about the motor, how long should you wait between flights to let the motor cool if I were to fly 20 minutes per flight?

Electric pattern sounds very interesting! I know Dave Von Linsowe tried it a few years ago with a USA Star, but the battery technology and probably the motor technology may now make it a much more viable option.