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Hymax Motors

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Old 07-02-2013, 04:53 PM
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davidhand
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Default Hymax Motors

Would a Hymax CR3516 contra rotating motor be the equivalent 46 size glow engine?
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Old 07-03-2013, 02:17 PM
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Default RE: Hymax Motors

Perhaps. What are you trying to use it for?

The proper way to size a motor to an electric plane is by watts per pound. So if you have a plane that you expect to be 6 pounds all up flying weight then a 600 watt motor would give you 100 watts/pound.

More info with deeper explanations can be found here:

EVERYTHING YOU WANTED TO KNOW ABOUT ELECTRIC POWERED FLIGHT
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Old 07-03-2013, 09:43 PM
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Thank you for the reference. I had in mind a pusher delta winged plane about 450 sqin wing area, 6lb weight. It seems I should be OK if I stay below 8lb. Ill use your reference again to select battery, ESC, prop etc. Thanks again.
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Old 07-05-2013, 07:41 AM
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If you are coming from the glow world, I would recommend you stay above 100 watts/pound as that is the kind of power set-up a glow guy would expect.  At 150 watts/pound most aircraft can hover

Electric slow fly can go down as low as 50 watts/pound and fly just fine.
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Old 09-02-2013, 05:23 AM
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http://www.maxxprod.com/pdf/CR3516.pdf.... this document suggests that this motor is only the equivalent of a .30 engine. Reading the specs it seems that 35A/motor on 3s might be getting you 700W max. A decent .46 equates to around 900W.
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