86" Yak, ideal cg for hovering?  
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All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> Quique's Aircraft Support >> 86" Yak, ideal cg for hovering?
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86" Yak, ideal cg for hovering? - 6/30/2007 9:22:46 PM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		Hey all,
I am trying to really fine tune my setup on my 86" yak for hovering/torque rolls etc. What would be the best CG for this type of flying on this bird?

Thanks

Z
       Post #: 1

RE: 86" Yak, ideal cg for hovering? - 7/1/2007 4:11:47 PM   
zonker123


 

Posts: 366
Joined: 4/17/2003
From: Grifton, NC, USA
Status: offline 		Just built mine last week and now have 12 flights on it. Found mine to be a little pitch sensitive in fast forward flight just behind the 180mm mark per the recommended measurement method, hovers just fine. At the 188mm mark which is the recommended cg -and where i am at now- still hovers just fine and is smoother in FF flight. Props will make a difference too, some make it easier to hover than others. I have pretty much settled on a VESS 23A for the best all around. PT Models 23/8 carbon does well also, little smoother than the vess but the vess locks in better in hovers and harriers.

take care
zonk

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Mommy!!! Daddys back from the fly-in and he's got another busted airplane!!!!

(in reply to Zman39)
       Post #: 2

RE: 86" Yak, ideal cg for hovering? - 9/1/2007 4:19:46 AM   
sb13


 

Posts: 1243
Joined: 7/17/2005
From: valparaiso, IN, USA
Status: offline 		I use a NX 23-08 on my DA 50 but I can't find a sweet spot on the throttle. I'm either pulling or it's too little. I might have to set a throttle curve.


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Scott

(in reply to zonker123)
       Post #: 3

RE: 86" Yak, ideal cg for hovering? - 9/1/2007 4:20:47 AM   
sb13


 

Posts: 1243
Joined: 7/17/2005
From: valparaiso, IN, USA
Status: offline 		I did just order a Vess 23A to try. Maybe this will work better than my NX???


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Scott

(in reply to sb13)
       Post #: 4

RE: 86" Yak, ideal cg for hovering? - 9/3/2007 3:13:49 AM   
zope_pope



Posts: 1045
Joined: 1/19/2003
From: Aurora, CO, USA
Status: offline 		23A is a great prop. I really like it on my DA50. Try 185mm for hovering. It is a bit nose heavy for walls, but it hovers just fine. To me, this thing almost hovers itself!

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If you choose not to make a decision, you have still made a decision.

(in reply to sb13)
       Post #: 5

RE: 86" Yak, ideal cg for hovering? - 9/3/2007 4:24:08 AM   
sb13


 

Posts: 1243
Joined: 7/17/2005
From: valparaiso, IN, USA
Status: offline 		I was getting pretty good hovers today out of my NX and I did 3 Harrier landings with it which I had never done before. It was a great day with the Yak!


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Scott

(in reply to zope_pope)
       Post #: 6

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