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Old Oct 18, 2011, 02:29 PM
jacktrotter is offline
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SagittaXC
Question

Halfbad Wing C.G.


Hi, I just bought a used HALFBAD 24" Flying Wing..It came with no instructions...Does anyone know the proper C.G. set-up for this? Thanks, Jack T.
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Old Oct 18, 2011, 03:28 PM
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Crikey never leave beer behind
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PM time


Shoot Pismo a PM its his design
Old Oct 18, 2011, 06:30 PM
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Old Oct 18, 2011, 06:33 PM
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Jack,

Alot of info in this Half Bad build thread and I couldn't find the exact location but know I'd seen CG discussion in it.


Searched that thread and 4 1/2" look to be th strating point.

Enjoy it Jack!
Last edited by chip.greely; Oct 18, 2011 at 06:39 PM.
Old Oct 18, 2011, 07:58 PM
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Yep. 4.5" is what's on the info sheet. Mine should finally be done this weekend.
Old Oct 18, 2011, 09:00 PM
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It does appear that several like to move the CG back and reduce elevator throws, but haven't seen anyone pontificate the supreme CG,....yet
Old Oct 18, 2011, 09:07 PM
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Yep, 4.5" back. Mine is done and waiting for a maiden! Can't wait, it looks like it's going to be a ton of fun!
Old Oct 18, 2011, 11:01 PM
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Sorry for the late reply. Yep, it's 4.5" back from the LE at the root. I shot a PM as well.

Jim
Old Oct 19, 2011, 07:46 AM
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I'm sure it flies well at 4.5", but you might find it interesting to plug the dimensions into this calc to see what CG range you could try out: http://fwcg.3dzone.dk/

I usually include the elevons in the wing size. This takes some fudging if you have a motor in the middle so that they are not full span.
Old Oct 19, 2011, 11:46 AM
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characters welcome!
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Motor?

mw
Old Oct 19, 2011, 11:52 AM
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Quote:
Originally Posted by Mark Wood View Post
Motor?

mw
Heresy!

(get a rope!)
Old Oct 19, 2011, 04:21 PM
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SagittaXC

Thanks Everybody!!!


Thanks for all the great input!!! Everything is a tight fit, removed R/X casing for seamless install...........I'm now praying for wind this weekend!!! J.T.
Old Oct 19, 2011, 11:04 PM
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Hope she works out for you Jack! Did you have to add much lead at all to get the right CG? It seemed to be balanced just fine without any when I had it.

Justin


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