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Need an Electric Motor

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Old 07-15-2004, 12:44 AM
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chanki
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Default Need an Electric Motor

I have a MK 12x3 propeller which is driven by a YS45 2-stroke engine up to about 14,000rpm.

Now for the purpose of running the propeller in a wind tunnel, the YS45 needs to be subsituted with an electric motor. Could anyone recommend a suitable motor?

As this is for a wind tunnel test rather than flight, there are no weight constraints.

Thanks very much,
K I Chan
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Old 07-15-2004, 12:01 PM
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Mike Parsons
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Default RE: Need an Electric Motor

How close does it need to be to 14K RPM?

A Mega 22/30/2 Geared 2:1 on 18 cells will turn the 12X3 at ~13940 RPMs.
Add another cell to 19 and it goes up to 14405 RPM

The 22/30 is good to 70 amps and this would put it in the 56-59 amp range.

Jeti 45-3 Direct Drive on 21 cells 50 amps $ 14100 RPMs.
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Old 07-15-2004, 10:01 PM
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Default RE: Need an Electric Motor

Thanks for the useful advice.

Which controllers did you use for these motors?
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Old 07-15-2004, 10:10 PM
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Default RE: Need an Electric Motor

With that many cells and the amps, I would go for a [link=http://www.castlecreations.com]Castlecreation Pheonix 80[/link]
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