jfannnin,

I assume you are talking about the CAPS Spring Classic in West Portsmouth, OH. That would be a good race to go to as either a participant or a spectator.

You definitely want to use a TT Pro .40 for the CAPS 424 class. A good ARF to go with it is the Great Planes Viper. This combination won the Saturday 424 event at the last CAPS race of 2006 in Muncie, IN.

We have clocked the 424 racers with a TT Pro .40 on a radar gun at about 110 mph in straight and level flight. Ground speed will vary significantly depending on upwind/downwind or climb/dive.