|Dec 17, 2010, 04:45 PM|
United States, OK, Lawton
Joined Jun 2010
E-flite Carbon-Z Yak 54
Just put this plane together and was trying to check CG. The manual says measure 6 inches from the trailing edge at the "WING TIP."
I am accustomed to using my CG machine that is setup to check CG at the FUSE. I haven't really ever done it at the wing tip... I suppose I could mark 2 spots at the wing tips and connect a string to them so I could get the CG at the fuse and then use the CG machine.
Anyone have any problems with this or do anything about this? I called Horizon and the gentleman basically told me to just do it like the manual says and hold it on two fingers. Personally I am a little OCD about CG and I didn't want to throw it up on my fingers. Maybe John R. could offer a bit of advice if your out there!?
|Dec 18, 2010, 03:36 PM|
Joined Feb 2004
The CG is not that critical, but if you really are concerned, do it with the string method you described. I just checked mine on my fingertips and it dropped the nose a bit so I flew it. Only have two flights so far and I may move the CG around just to see what happens.
|Dec 18, 2010, 11:22 PM|
As Tony stated you can use the strign method you described to find the location at the fuslage.
Not everyone has a CG stand as you use and for the first 60 years we didn't have any. It isn't as critical as you think with a foamy. The planes have all been molded the same and pass many weight checks during manufacturing so your is probably spot on if using the included equipment.
Meassure the 6 inches at the tip and pick it up with your finger. You will be fine I promise. Give it a try, I am sure you will be sucessfull.
|Aug 13, 2013, 04:47 PM|
Joined Oct 2005
Updating this thread for history's sake and save someone some time.
I like to use my CG machine which measures from leading edge at the fuse. Using string method, I determined CG at the fuse should be 106mm from leading edge. This results in perfect balance with the included 2800mah battery centered in the battery tray.
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