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Engine basics => Engine set up tips => Topic started by: frank mccune on May 04, 2024, 09:23:37 AM

Title: Prop suggestions
Post by: frank mccune on May 04, 2024, 09:23:37 AM

       Hello All:

        I would like to have prop suggestions for the following engines:

         MVVS 1.5 diesel
         MVVS 2.0 diesel
         Irvine .20 ci. Diesel
         Irvine .40 ci  Diesel
         OS FP .40 with Davis conversion

         These engines will be used for UC Stunt flying.

          Tia,

          Frank
       

Title: Re: Prop suggestions
Post by: Dennis Toth on May 05, 2024, 04:00:01 PM

Frank,
I think for the MVVS 1.5 would start with a 7x6 wide blade, for the 2.0 something like an 8 1/2x6. For the Irving 20 like a 9x6, the 40's can turn a good prop, wide blade 11x7. The same for the FP convert.

Make sure you have fuel with enough ether in the fuel, the FP Davis Convert can be very sensitive to the  amount of ether. You want to have at least 33% ether to keep temperature control (I have one and with low ether I could not back off the compression to keep steady running).

Best,    DennisT

Title: Re: Prop suggestions
Post by: frank mccune on May 09, 2024, 03:02:18 PM

      Hi Dennis:

      Thanks for the reply!

       Frank