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Thread: OS FP .15


  1. #1
    aspeed's Avatar
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    OS FP .15

    OS FP .15, RC carb, no muffler 7-5" APCprop. 10% nitro, 16,300 rpm.

  2. #2

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    RE: OS FP .15

    How come you used a APC prop on this one and MA props on the other engines.

    Also why not just one thread istead of 15 (pun) lol

    On the old FP carb screw the needle asembly out till its just poking inside the carb hole. this should yield another 300-500 more rpm.

    On the new LA 15 if you would like a quick easy 1,500 rpm let me know also. shoot an email.
    AMA # 126183
    Fly light, fly fast and fly low.

  3. #3
    aspeed's Avatar
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    RE: OS FP .15

    The shaft was a bit bigger and I had to do more tests with smaller shafts. Eventually I had to drill one bigger for the Fora and Ucktam. The APC and MA rev about the same though. One may unload more in the air, but I wasn't checking that.  It was too cold to fly and takes too much time. I did the .09 to .10 all in one thread, but thought the .15's would get confusing.  I usually do turn the spraybar out a bit but didn't on that one.  The Norvel needs that done but it looks kind of hard to do.  One side looks pressed in and the other side sort of needs to be that big.


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