I got this plane ready to go its an original patty wagstaff 1/4 scale Extra 300 and unlike my other planes it says in the manual to mark the CG at the*(wing Tips)* 3-13/16

am I suppose to lift this plane by the wing tips I'm afraid its to heavy for that.

If i mark 3-13/16 on the wing tip and use a straight edge to follow the line with the wing tip i come up with 6-1/2" next to the fusel lodge.

i get the same mesurment if i streach a string across the plane from wing tip to wing tip

if i flip the plane upside down and use that 6-1/2mark for my cg its all good does this sound right i don't want to maiden it tail heavy.

here is a link to the page from the manual
http://www.mpisquadron.com/plane1.jpg
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Most giant scale planes like the extra are cg'd right were the wing tube is. Inoramlly make a template and slide it on between the wing and fuse and lift from that.

Yep I agree with the wing tube....this is only a place to start from.....true CG will should be checked on the first flight and by the way you want your airplane to fly

Thanks after some asking around the tube line seems to be correct for first flight thats right where the line is if i run a string across thanks!

up up and away!!