RE: KK Needle valve for TD.049
They could make a .25 LA race plane. It is pretty much a trainer. It used to be Fox .35 racers, but then they changed it to LA .25's,(after I bought 3 crappy Foxes) Both motors run the same speed. Most Buster, Shoestring, Ringmaster type planes fit into the class. Wing 1" thick min. 5" from tip, 60 ft. lines... They work good on grass. See the Balsa Beavers site for the rules.