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GWS P-51 gear ratio

Old 08-18-2003, 11:31 PM
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Dunqun-RCU
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Default GWS P-51 gear ratio

Does anybody know what the gear ratio is on the EPS-300C gearbox that ships with the P-51? I notice that there are several different gear ratio replacement motors that you can get for this plane, but I can't find what the original ratio is.

Thanks,
Duncan
Old 08-19-2003, 11:00 AM
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Matt Kirsch
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Default GWS P-51 gear ratio

Look at the spur gear (the big one). There should be a letter embossed on the face of the gear. That's the ratio of the gearbox. You can look it up at http://www.gws.com.tw

If all else fails, count the number of teeth on the pinion (little gear) and the spur, then divide the spur number by the pinion number.

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