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  1. J

    1/8 Hydro prop shaft position

    Hi all. Recently purchased a 1/8 scale hydro looking to go over it all and make sure it is setup right. The prop shaft angle was the first thing I noticed. It is kinked off to the side, seeing the hull is not symmetrical. Just looking for some advice if this is the correct position for this...
  2. J

    OS 21xm vs OS 21xm V2

    Hi all, Is there much difference between the OS 21xm and the later version two? I see some people say the V2 is quicker. Is it really that? OS's figures give the same HP and RPM which I would have thought makes them fairly close. I see they have different part numbers for components so some...
  3. J

    3.5cc tunnel hull setup

    Hi Guys, after some advice setting up a tunnel. Have a few 3.5cc's (OS outboards and Prather lapcats) that I have built and have been for recreational use, would like to get some pointers on getting a bit more speed. Current prather lap cat hull and OS 21xm. Standard plastic prop. 10% nitro...
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