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Home✈️Aircraft🚁Helicoptere-AlignT-REX 500 › 12T or 13T pinion on T500
02-09-2008 03:28 AM  11 years ago
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zsultan

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USA

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12T or 13T pinion on T500
Currently i am using 12T pinion on my T500 with Throttle curves

Normal: 0,80,80,80,80
ST1 : 95,95,95,95,95
ST2 : 100,100,100,100,100

Head speed seems low in normal mode, because the tail vibrated vertically (low head speed). Everything is oK in idle up mode.

I dont do any 3D right now thats why i choose to go with 12T to get more flight times. Using 6S EVOLITE.

Did any of you using 12T have this tail issue? or is it better to go with 13T?

Thanks
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02-09-2008 03:29 AM  11 years ago
EZ TIGA

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kona,hi,us

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13t here
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02-09-2008 03:39 PM  11 years ago
Glorysgun

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Enterprise, AL

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12T is not very exciting unless you like FFF and figure 8's. 13T on 6S 100% gets plenty lively. Running 2x3S TP2200 and get 5min without too much stress on the packs.Katalepsis
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02-09-2008 05:22 PM  11 years ago
bl8zn

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New Jersey

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2 FP 2170 packs on 13t at 100% gets me 3m50s to 4 min with my flying.
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02-09-2008 05:27 PM  11 years ago
docjoe

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Stockton, CA United States

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I found that the 13T pinion didn't give me the power I wanted for 3D on 6s. I'm currently using a 15T pinion with an 85% idle up straight curve running about 2800 head speed. I think this is a good head speed for me. For sport flying, either the 13t or 14T pinion would be adequate.Joe
We haven't seen Colonel Angus around these parts for years!
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02-10-2008 12:03 AM  11 years ago
zsultan

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USA

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I changed my pinion from 12T to 13T today and my friend tached the headspeed in idleup 95% straight line, first time its 2400rpm and second time he got a reading of 2900. Can i get 2900 with this setup? i am thinking its not possible to get this kind of head speed (2900) with 13T, stock motor, EVOLITE 6S lipos.

Please advise.

Thanks
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02-10-2008 12:05 AM  11 years ago
docjoe

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Stockton, CA United States

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That head speed does sound a little excessive for a 13T pinion. I would think it's more along the lines of the first reading. You should be getting about 2600 on 13T. That was the ballpark HS that I was getting with my 13T 6s setup.Joe
We haven't seen Colonel Angus around these parts for years!
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02-10-2008 03:29 AM  11 years ago
zsultan

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USA

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Whats the drag coefficient? i was using the calculator on rediheli.com.

Thanks
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