Well, Dad came out a couple of weeks ago and we raced my scratch built cat with his Fastech. Pretty sweet boat! We had it out in probably 4-5" chop and it handled great. We ended up putting an X445 prop on it and using 4500 NIMHs. Pretty good speed - estimating upper 20s. So then I had to try, since people are saying they can and haven't blown anything yet, we put in 6S1P and I think we got 50% better speeds.
check out the comparison:
http://www.youtube.com/watch?v=Y9fII-gjF6M
So, question to all: has anybody else had issues with getting it to turn good both directions? We adjusted the servo and rudder linkages to max throw and we can get it either good right or left, but not both. We were thinking adding another rudder? Anybody solve this problem yet?
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