Hi. I have a align 450l. That has a tail issue that I cant tune out. In a fast funnel the tail wags. And I I fly backwards full speed and put in full elevator tail blows out big time. I have raised gain in tx and lowered piro const. No help. Ruder delay on 0. Also tried 1-5. It is a full stock 450l. the tail holds well in a pyro flip tho. Any ideas would be great thanks.

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Hi,

if tail blows out for 30° and more, than there will be issue with tail efficiency. Your rudder end-points may be too low, so increasing range may solve the problem.

Next problem could be in too low pirouette consistency parameter. For DS52X servos I recommend to use Rudder Delay around 10-15.
Piro Consistency should be around 160 for this helicopter.

The problem could be also caused if head speed is not holding well. Do you use governor? Do you hear if it drops?

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Spirit System developer

No gov i run 100 percent throttle. Yes head speed does drop a wee bit. I will adjust setting to above and let you no how i get on.
Is there a list of recommended settings for major heli brands like align etc


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Yes, you can use wizard from the software where these values are configured when you select correct profile.

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Spirit System developer