Gear ratio up to 14/1

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mattbeau
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Joined: Fri 05. Feb 2016 21:03:44

So I have an oxy 3 with 140t main gear and 10t motor pinion. The software only allows me to go to 12.7 ratio but I really need 14. Is this a limitation or can we get to 14 with a software change?

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ZeXx86
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Previously there were same questions about this issue with solution. I will try to find it.
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Adrian
Posts: 204
Joined: Thu 08. Oct 2015 14:43:12
Location: Switzerland

Have a look at this:
http://spirit-system.com/phpBB3/viewtop ... &view=next

If I understand it correct, by doubling sensing divider and halving gear ratio, you should end up with same rpm.

Motor field rpm = rpm * GearRatio * SensingDivider = rpm * GearRatio/2 * SensingDivider*2

I hope higher gear ration will be introduced in next minor release.
Oxy4max SpiritPro + HW // SOXOS 550, SpiritPro, HW120A V4, 920KV // SOXOS 600, SpiritPro, HW160A, Pyro650 // SOXOS Strike7, SpiritPro, HW160A, Pyro750 // Skywing Spirit Aero // FrSky Horus X10S + Taranis X7 /
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mattbeau
Posts: 30
Joined: Fri 05. Feb 2016 21:03:44

Cool I'll try it out. Thank you.

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mattbeau
Posts: 30
Joined: Fri 05. Feb 2016 21:03:44

That did the trick. Thank you.

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Adrian
Posts: 204
Joined: Thu 08. Oct 2015 14:43:12
Location: Switzerland

your welcome, Adrian
Oxy4max SpiritPro + HW // SOXOS 550, SpiritPro, HW120A V4, 920KV // SOXOS 600, SpiritPro, HW160A, Pyro650 // SOXOS Strike7, SpiritPro, HW160A, Pyro750 // Skywing Spirit Aero // FrSky Horus X10S + Taranis X7 /
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