Probably ProSisTel would be your best option. I considered buying them years ago but instead went prop pitches. I wonder what will happen with K7NV's surplus motor inventory? John KK9A Jon Zaimes, AA1K wrote: Just a bit too much for Orion 2800 or the new DXE RT4500HD (I think). Prop pitch not so available since K7NV is SK. Prosistel? Others?? 73/Jon