Tail help

[RiazP]

Hi all,

I have a BE on a ksm dune, the tail rotor is on the left of the Heli and when I do rolls the tail seems to drop when the main rotor is perpendicular to the ground. This results in a very loose roll. I thought that the phasing could be off but the Heli flips on a dime and the tail stays right on the spot, so thought that there may be some tail setting that I could use to keep the tail from dropping during the roll.

Any ideas from the gallery?

[georgi UK]

=] sounds like a tail heavy CofG issue? the "cyclic mix" parameter in the tail tab might help?

[RiazP]

It's actually a bit nose heavy georgi...

Will try the suggestion though and report back

[gitbse]

So when you do an aileron roll, when the disc is pointing straight up and down, the tail rotates?

If so, that could be a couple of things. The tail gain could be too low, or you could be putting some unwanted rudder input in. Set the deadbands to 2 or 3% all around, that will help. Other than that, it's hard to say much more from what you described.

[RiazP]

Git,

good call, upped the gain and things are now good, don't know why i didn't do the hover, then gain adjust, had it on 48, its now on 60, and there is no hi speed wag or weird behavior so i am going to leave it there.

Georgi, i have bank two set up with 10% of cyclic mix and the original gain value, and will try that next weekend to see what that does, but i figured what i could fix with gain i shouldn't try and manipulate with cyclic mix?

[georgi UK]

=] if its now level leave it there, I did consider the tail gain also but would have expected to have seen other issues related to that, wrong CofG can produce counter intuitive effects.