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prop sizing question ?
https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=41&t=6367
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Author:  CAmudduck [ Fri Dec 04, 2009 4:34 pm ]
Post subject:  prop sizing question ?

Hello guys, I have a 6.5 hp surface drive that i built on a 1232. It seem to run well with the current prop 10 x 6. I am running a 1.5 to 1 gear ratio prop rpm is in the 2600 to 2800 range and it gps'ed at 11.8 mph.That was with me (200 lb) dog (80 lb) and 3 doz decoys plus other misc gear. I put this prop on with no previous knowledge of how to size a prop. I was wondering whether or not i was losing any top end speed with the prop i chose or if another size could suit me better at $160 a pop there a little expensive to just buy blindley. Thanks in advance for any help or advice

Author:  3peckeredbilly [ Sun Dec 06, 2009 8:53 pm ]
Post subject:  Re: prop sizing question ?

With that load and motor combo you ain't gonna gain anything with a different prop. :mrgreen:

Author:  Da-Cajun-Angla [ Sun Dec 06, 2009 9:05 pm ]
Post subject:  Re: prop sizing question ?

7 x 3 prop definately!

Author:  CAmudduck [ Sun Dec 06, 2009 9:13 pm ]
Post subject:  Re: prop sizing question ?

say i go with a 7 x 3 should i change the rpm at all ? btw thanks for the responses.

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