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Compass 7HV, 7HVU and Chronos Compass Compass 7HV, 7HVU and Chronos Model Helicopter Discussion |
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08-03-2012, 03:42 PM | #1 (permalink) |
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Join Date: Aug 2010
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main gear problem
its my 6 flight with my 7hv
till now i was flying with zippy 5000 30C last week i but 2 battery TP 65C 5000MAH today i used then first time after less then 1 min of flying the main gear fail in hard manuver nothing happend to heli ,by luck i'm running 700MX 510KV 15T revco and 2100 on governor the mashing was good i dont know if the crack come after or cause this i was looking on the upgrade of the main gear , but max pinion is 14 ( dose helical main gear upgrade made by aluminume ? ) is this happend to anyone ? thanks |
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08-03-2012, 04:11 PM | #2 (permalink) |
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OMG!
To high Gov gain mixed with imperfect gear mesh I'd think. The Helical 14t will equal your 15t straight. H gear is 127tooth where S gear is 136.
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08-03-2012, 05:26 PM | #3 (permalink) |
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Join Date: Oct 2008
Location: Midland, Michigan
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I don't know what to make of that. Wonder if the pinion came loose on the motor? Or motor mount loose? I've only had a single tooth break out when I get the mesh too tight. But when I fly by, I can hear a tick noise giving it away. This looks like it ran like that for a time.
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08-04-2012, 04:41 AM | #4 (permalink) |
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Thread Starter
Join Date: Aug 2010
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how many tooth is the orginal main gear
and how many is the helical - and if u know what is made of thanks |
08-04-2012, 08:10 AM | #5 (permalink) |
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Stock 136
Helical 127 Helical is made of Delrin.
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