Choosing a PROP !!! What the %$#@#$#%#$#@. Man That can get expensive QUICK. A 50cc engine usually cost about 150.00 before I find the one that works nice for the combination. I have a DA 100 for a Cap and a 3w 150 in a Ultimate, no flights on either yet. This will be a 400.00 dollar adventure to find the one I like for these. Someone needs a prop exchange service to help the hobby out. When I get these running I'll post some inflated rpm data. HeHeHeHe

Kent