Found this thread educational and entertaining
 

Good reading.

http://www.rcuniverse.com/forum/m_99..._1/key_/tm.htm

Chuck

RE: Found this thread educational and entertaining
 

Entertaining yes.

Educational? Yes if a common Joe can sort through the "sword" fight.

That's why I don't argue aerodynamics with anyone.

RE: Found this thread educational and entertaining
 

Can anyone tell where the CG is for the "Eclipse"? I just purchased a used one at the swap meet in Perry, GA and have no idea where to balance it. Any help would be appreciated. Regards, Jack

RE: Found this thread educational and entertaining
 

Hi Chuck, thanks for posting this one!

Don't know who is responsable for this but I would still propose to have one "sticky" thread on trimming in which these kind of threads can be collected. Would be of interest I think.

Volkert
e

RE: Found this thread educational and entertaining
 

Why do RC guys say "tip stall", and why can't they run a MAC computation to find 25%?
Chris...

RE: Found this thread educational and entertaining
 

JVA. Safe bet is to stat at the leading edge of the wing tube. pattern planes are fairly forgiving on initial CG but if you are in the middle or near the front of the wing tube, you are safe to start the trimming process.

Chuck

RE: Found this thread educational and entertaining
 

Chuck, Thanks for information. Will take your advice. Regards, Jack

RE: Found this thread educational and entertaining
 

Jack. You might also consider calculating about 25 to 27% MAC and see how it compares to wing tube location. If they are different significantly I would aim at 27% for a baseline.

Good luck!

Chuck

RE: Found this thread educational and entertaining
 

LOL.. yeah.. there wasn't much education going on there. Entertaining for sure.

RE: Found this thread educational and entertaining
 

<div>It's a good tread.</div>Having tried the great rearward GC experiment for many years and changing over to a far further forward CG (plus the extra pos' incidence)  last year, I gave to say, it's magnificent!<div>What a difference, less mixing, old school tracking, just an alround happier model... what ever lead us astray?</div><div>The only thing that need some adjustment is the inverted, easily fixed buy dialling in (out) expo on the down elevator or instead just adding more throw by off setting the link at the servo end... which I prefer.</div><div>Funny thing is though, when I started flying at the beginning of the 70's (long before Computer Radios and mixes... we ALWAYS seemed to set up our planes with more down elevator. Funny how things come around. </div><div>I personally blame the 3D IMAC fad in the 90's for driving us insane with "getting the CG back man" voodoo nonsense. </div><div>Back to basics.</div>