Correct Propeller RPM

[Mark TommyParticipant @marktommy83416]

Hi – its me again in need of some more of your good advice

I have read quite a lot of threads regarding the correct motor sizing but I need some help regarding the correct propeller RPM

I am installing 2 MFA motors in my Fairmount which are geared 2.5 – 1 and I am unsure what voltage to run them on for the correct RPM for a model of this size

If I run them on 6v I beleive the maximum output speed is 3000rpm and if I use 12v this speed increases to 6100rpm. I understand that the throttle on the transmitter is the ultimate regulator but I want a good basic set up to start with

I'm using 55mm 4 blade props and I intend to use Mobile Marine 60mm Kort knozzles as I don't really like the one's in the kit

Any advice would be appreciated

Thanks Mark

[Mark TommyParticipant @marktommy83416]

[Dave MilbournParticipant @davemilbourn48782]

Mark
Stick with 6v to start with. If the model is too slow for you then increase the voltage later. Frankly with props that size in Kort nozzles you should have plenty of power.
Dave M

[Mark TommyParticipant @marktommy83416]

Thanks Dave I'll order 6v batteries

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