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HomeAircraftHelicopterGasser Model RC HelicoptersOther › Head speed 1250
05-29-2012 06:28 AM  6 years agoPost 1
epryor

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Grandview mo,

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I have a Condor Predator Zenoah G26 Pro Plus Heli BH swinging 810mm blades the gears are 88t/11t. right now I'm at 1300 do I need to change my gear ratio? are would it be okay with this engine running that head speed? my target speed is 1200-1250
I'm going to put this in a fuse.

Batman - Scale it up

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05-29-2012 01:17 PM  6 years agoPost 2
Disciple4123

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USA

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You'd want an engine speed of 10,700 to 11,300 (greater deviation acceptable as well). So a ratio of 9:1 would be about right for what you wish to do.

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05-29-2012 02:38 PM  6 years agoPost 3
epryor

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Grandview mo,

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So can I keep the stock gears?

Batman - Scale it up

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05-29-2012 03:34 PM  6 years agoPost 4
shawmcky

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Isle of Wight,United Kingdom

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You have 88/11=8.1=10,000 engine r.p.m=1250 at head.

Team- unbiased opinion.K.I.S.S principle upheld here

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05-29-2012 03:40 PM  6 years agoPost 5
epryor

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Grandview mo,

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So I'm good right? The rpm range on this engine is 8,000- 13,000

Batman - Scale it up

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05-29-2012 04:26 PM  6 years agoPost 6
shawmcky

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Isle of Wight,United Kingdom

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If your engine makes a good deal of torque at 10,000 it should be fine,do you have a spec sheet?

Team- unbiased opinion.K.I.S.S principle upheld here

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05-29-2012 04:33 PM  6 years agoPost 7
shawmcky

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Isle of Wight,United Kingdom

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Stock motor makes most torque in 9,500-10,000 area

Team- unbiased opinion.K.I.S.S principle upheld here

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05-29-2012 06:23 PM  6 years agoPost 8
Christopher J

rrElite Veteran

Kansas City, MO Californian lost in land of Oz

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So just keep breaking in here at the field. We'll keave the needles as they are. As the motor breaks in it should start running a little stronger, thats what mine did anyway. By gallon #4 I was dropping the TH curve a little to keep the headspeed wherw I wanted it.

Christopher J
same as I ever was
"Still all set & Flying the original"

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