Comp-arf 2.6 meter yak wobbles

[Comparf]

I have a 2.6 meter Comp-arf Yak that flies fantastic, knife edge like no tomorrow, rolling circles are smooth and quite easy , 4 pointers are solid, but I am having trouble with Harriers, It wobbles like mad. Is it due to the CG not being aft enough. It is balanced as per the intructions " wings off just behind the tube". Also inverted flat spins are hard to get flat. It sounds like CG problems but I am not sure. Please help!!! Where should the CG actually be if the instructions are not quite right? And how do I make it do stable harriers?


Help, help, help

[youngflyer]

try lateral balancing it!

[Sandbag Special]

Lateral balancing and aft CG fixed those problems on mine when it was new.

[Bunky F. Knuckle]

First thing is first. Fly it. Pull to a 45degree upline, roll to inverted. Relax your inputs(hands off)!!!!! What does it do??? Dive??? Maybe?? No dive??? If it dives, shift a few things back on the CG. Then try again. I know my Carden is on the nose heavy side of things, but inverted flat spins are still FLAT!!!!!! Some A/C will still "wag the wings" in a harrier. No matter what you do, mixing wise, cannot get rid of!!! Just have to be "in tune" with your bird!!

Try that, hopefully, it will help you in your flat spins and somewhat in your hariers!!

Chris~

[notorious_benny]

http://www.flyinggiants.com/forums/s...4122#post64122

Mark Trent's reply to my exact same question!

[Comparf]

Thank you all for the replies. You have been very helpful!
I will try the 45 degree CG test and go from there. I believe my nose is probably not high enough either. It is always a bit nervy to put the nose high when you are first practicing a new maneuver.

[Comparf]

By the way I am new to Flying giants. How do I put and avatar with my posts

Comp-arf Canada

[Bunky F. Knuckle]

You can set that up in your profile, I think.........

[fonzegator]

hi... what i do when i do harriers on an plane be it a Yak, Edge or Extra is i set my ailerons as spoilerons(reversed flaps).. but make sure u set it to a minimum! (3-4mm) is enough.. this helps prevent aileron rocking.... DO NOT SET TOO MUCH SPOILERONS AS THEY WOULD IMPEDE AIRFLOW TO YOUR ELEVATORS!!..... just my 2cents worth..have fun...