Zagi CG - RC Groups
Thread Tools
Feb 21, 2013, 04:34 PM
Co-heir with Christ
Dcope17's Avatar

Zagi CG

Sorry for not searching but this site is slow on my phone...
Story, my boss has a Zagi glider ( no motor) and we tried it out the other day and it needed full up elevator to keep it from diving straight down. I know only a little about planes and less about ones without a tail and even less about gliders. So a quick question, where is the CGsupposed to be? I think he said the book put it at 7" from the tip.
Let me go find the box so I can give the model or size, whatever.
Sign up now
to remove ads between posts
Feb 21, 2013, 07:53 PM
Registered User
slebetman's Avatar
Enter the measurements of the Zagi in here:

Since it's a glider, I'd suggest using the 20% value instead of the 15% since gliders prefer to be a bit tail heavy.

BTW, that link is posted in a stickied thread on the "Flying Wings" forum in the electric airplanes section.
Feb 21, 2013, 11:13 PM
Co-heir with Christ
Dcope17's Avatar
Thanks for the help...I'm still learning my way around this forum.
Feb 26, 2013, 11:57 PM
auto-tune remix
slopemeno's Avatar
Way too nose heavy. Try moving the CG back to 7.75"- 8" back from the nose, and reduce the control throws.

Also, when you get it flying, you'll need about half the elevator throws -vs- aileron throws.

Learn to throw it with your four fingers under the nose, and your thumb on top. You can actually get a pretty decent throw this way.
Feb 27, 2013, 12:17 PM
Retired CAD guy
birdofplay's Avatar
Or tape a clear servo blister package on the bottom as a handle and pushoff.

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Careful! Zagi 33Hp small hints benjamin presten Flying Wings 0 Jan 05, 2013 10:16 PM
Discussion Zagi 120 cm. firpofra Aerial Photography 3 Jan 05, 2013 08:04 AM
Sold Zagi 3C Kit DlgHucker Aircraft - Sailplanes (FS/W) 0 Jan 03, 2013 04:37 PM
How do I move my Zagi cg back? emaij Foamies (Kits) 3 May 29, 2001 01:10 PM
Zagi Thrust Line and cg? NewbieX Foamies (Kits) 1 May 04, 2001 01:04 AM