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HomeAircraftHelicopterHelicopter Main Discussion › tuning two Helis to match feel
10-17-2011 02:47 AM  7 years agoPost 1


Detroit, MI - USA

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I'm tryng to make a EVO Seadeu 50 have the same tail feel as my Ergo 50. Both have JR DS890G tail servo's and Futaba 240 gyro's. I can run 100% gain in the Ergo but only 55% gain in the EVO. I've heard if I trim down the tail blades on the EVO I can turn up the gain....Is this true?

I tried to shorten the servo horn slightly and it did nothing.

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10-17-2011 07:13 AM  7 years agoPost 2

rrElite Veteran


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I wouldn't trim tail blades - two models do not need the same tail gain to perform the same

10-17-2011 12:15 PM  7 years agoPost 3
Jeff polisena

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westpalmbeachflorida usa

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You can get close but won't be exact . I've built two Raptor 50's exactly the same and still each hand own characteristics and some settings were different .

Don't worry about numbers , setup and test fly and get in flight to feel as close as you can .

I stole it ,flew it and gave it back ;)

10-17-2011 01:16 PM  7 years agoPost 4

rrKey Veteran


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I had two Vibe 50's set up the same but could never get them to fly the same.

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10-17-2011 01:24 PM  7 years agoPost 5

rrElite Veteran


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You want lower electronic gain.

10-17-2011 01:45 PM  7 years agoPost 6



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You'll never get closer than just "close" no matter how hard you try. Even with two of the same airframes. You also have two entirely different helis. Why not set them up to exploit the best features of each instead of numbing one down to the lesser qualities of the other?

To answer your direct question. I would not trim the tail blades just to try to match the gain settings. Use whatever gain is necessary to make them feel similar.

10-17-2011 03:49 PM  7 years agoPost 7


Leeds, England

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It could be that one heli has more vibration than the other, different mounting pads, different velcro strap tension, one helis tail mechanics might not run as smooth as the other which includes tail blade thrust bearings, different head speed, different tail gear ratios etc etc..

60% of the time, it works every time!

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