My 185's cost $0.27 a minute of fuel because I run them rich, same with the 175 and with Cool Power 30% Nitro.

Flightpack,

The thing is the F3A airplanes a limited in noise, usually they run between 94 and 96 dB, this is something the standard IMAC muffler is way far off, that's one of the reasons the IMAC guys are using canisters (pipe like mufflers), they are quieter and have more power. You should not have any problems with noise restrictions most likely.

When coming back to pattern, keep it simple, just use what you want and can get, once you get comfortable then move to other options, there are to many, some sound cheap but are nightmares or impractical, so it is better just to fly, have fun then figure some details later.

Most of today radios will work fine, I also remember when I first had a radio that said "Expo" on it......... now I don't think I could snap without Flight Conditions Hysteresis, hehehe.

Good luck.