multimike

I am scratch building a stand off scale Avro Arrow from my own planes, I have seen all kinds of equations and solutions for establishing the C/G but with the big long fuse ahead of the wing bothers me, what I did initally was check were the main gear was on the three view drawings of the real one and figured that they would be aft of the C/G but now that its all framed up to the point where I really need to know
OK , here are the figures
From the center line of the fuse it is 24 inches to the tip (per panel)
Base rib on the center line of the fuse 1s 40 inches
Tip is 5 inches
Trailing edge sweeps back 3 inches
If someone can jsut TELL me where is should balance I would be very thankfull
Mike

All Day Dan

My Feedback: (5)

This has worked perfectly for me for a few dozen models. Dan.
http://www.geistware.com/rcmodeling/cg_calc.htm#mac

limeybob

My Feedback: (6)

This should be good.
Bob

multimike

Thanks guys, I was close but that sure fine tuned it for me Mike

Props4ever

CG for the Avro Arrow are at the dog tooth/Notch. I'll see my aerodynamic 3 views to help you with this CG issue but i'm pretty sure it's at the wing notches...

multimike

Thank you Mike

Samedayservice

props, what is yor landing speed?

multimike

My Arrow is also 1/12 scale, how you going to power yours? Against all advice my prototype will be HOPEFULLY test flow using a 90 FS to PULL it so far I have been able to stay under 10 lbs so that should equate to about a 24 oz wing loading, I have designed a lot of aircraft but this is my first en devour into delta wings Mike

Props4ever

As for ur first delta, it will be a good challenge for ya, specially if ur going after using scale airfoils. You will need gyros on ailerons to stop oscillation as i have seen it happens with guys who used scale airfoils.

I have bigger 1/8th scale Arrow that i started on working some years ago but had to stop, now i can start again once my other projects are out of way, till then it's hanging in my garage.