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Engine basics => Engine set up tips => Topic started by: kevin king on April 19, 2023, 12:34:15 AM
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Can someone recommend a few different props for this engine? I am not sure the type of run that best suits the engine either. High rmp low pitch? Or run it like an st 46? The engine will be going into a kit built vector 40. Thanks.
Kevin.
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Hi Kevin!!
Try some 11-4 through 12-4 props. A lot will depend on the weight of the airplane. The gray Thinder Tiger props have worked well, a 11- 4.5, I think it is, APC 11-4 and 11-4.5, and APC 12.25-3.75. Those will get you started and you can test others from there. It will be a high RPM run in the 9500 to10,000 RPM range in the wet -2 mode. The Vector isn't a very big model but they seem to come out in the upper 40 ounce to 50 ounce range. HAVE FUN!!
Dan McEntee
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The B Y & O props from Brodak have served me very well. For the LA 46, I use the 11 X 5. The Thunder Tiger 11 X 4.5 is also a good match for the LA 46. The Thunder Tiger is heavier than the B Y & O so if you need a bit of nose weight, go with it.
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Can’t go wrong with a Rev Up 12-5 cut to 11.5”
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I was under the impression the timing was altered to favor a high pitch type of run. I could be wrong though. Anyway thanks for the prop size suggestions guys, Much appreciated.
Kevin
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I was under the impression the timing was altered to favor a high pitch type of run.
Ask Randy to be sure, but if so, that would be very unfortunate.
Brett
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I have one now and I had another one which I sold because of a difficult financial situation. I bought it new from Randy and used 11-4's APC and Powerpoint. It was happy with that. Now I have another one which came with a gifted Pathfinder. It had over 100 flights. It has been the best plane/motor combination I have had. It had an 11x4.5 on it until I crashed it. I run it as has been prescribed here over and over. Peak it out as high as it can go and then back of into a wet 2.