Jon Wold

Where is the recommended center of gravity for the Xigris C1, does anyone have any recommendations? My new plane balanced precisely at the center of the wing tube with the battery pack on top of the undercarriage mount. At first glance this seems slightly tailheavy?

Jon Wold

Nevermind, found it at ZN's website :-)
http://www.znline.com/produits.php?l...ata=1220373817

J Lachowski

My Feedback: (46)

I believe the CG it is right on the wing tube? I'm sure Chad will chime in on this. Weather has kept me from test flying mine.

Jon Wold

Thanks! ZN's site says 28cm from the TE, that puts it square on the wing tube according to my own measurements.
A giant weight was lifted off me yesterday when I discovered that the CG was perfect with the battery where I most wanted it. Don't you just love it when things go your way!

can773

My Feedback: (1)

Hi Jon,

Yes right on the middle of the tube, with the wings at 0.5 positive and the motor lined up to the nose ring that should give you a near perfect setup for KE pitch.

Jon Wold

Thanks a lot! That's exactly my setup, so fingers crossed for the maiden flight now :-)

rctestpilot1

Hi Jon,

I flew with Chad this past weekend and he flew my Xigris and even though the plane flew well I needed to move my packs forward a bit to achieve the perfect 280mm. Once this was done there was no need for mixes in KE.

Jon Wold

That's probably true :-)
I have a slight nose-down balance and it required a lot more elevator to snap than did my Integral, so I'm gonna go for a lighter prop/spinner combo eventually.