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T-REX 450 › Tail prob with 450 / GP780 / 9503 ...?
11-16-2011 02:05 PM  6 years agoPost 1
Blackhawk6

rrVeteran

Trenton, Mi

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Hello all! I just got a 450 with a 9503. I set everything up last night and tried it out this morn. On the first spool up it piro's violently. The direction and such are right but...
Then I picked up the heli and spooled it up when holding it to see what the gyro is doing. It has a wag that is crazy! I tried to adjust the gain up and down and it didn't solve it.

I have the gain plugged into the ch5. Is it supposed to be in ch7 for the 9503? I seen a couple posts about this but didn't know what to do. It could be something else I'm not catching. I've been out of the hobby for a bit :/

Any suggestions would be greatly appreciated! Thanks!

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11-16-2011 02:40 PM  6 years agoPost 2
Evan03

rrVeteran

Idaho

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What's in the gear channel?

Sounds like its all outa wack if the derction of the gyro and servo are correct it wont piro

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11-16-2011 03:03 PM  6 years agoPost 3
Blackhawk6

rrVeteran

Trenton, Mi

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The gain lead for the gyro is in the gear channel. The direction is correct and doesn't want to piro now. I adjusted the delay and now it works correctly but once every few seconds it has a bad twitch to either side...? What should the delay be set at, red or green? Also what % of delay and gain setting in the tx?

Idk what's goin on?

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11-17-2011 03:57 PM  6 years agoPost 4
jschenck

rrProfessor

La Vista, NE.

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I have the gain plugged into the ch5. Is it supposed to be in ch7 for the 9503?
Yes - default for the 9303/9503 is to have gyro gain on Ch.7. You can use Ch5 but you have to adjust the values on Ch.5 then. One way to test that you are adjusting the correct values is to lower it down all the way and see if the gyro flips into rate mode.

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