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Old 01-28-2008, 06:24 AM   #3
Flyinhigh
Barking-Tip Bandit
 
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Join Date: Jan 2006
Location: Austin, TEXAS
Posts: 571
Default Re: C-ARF 3.3M Yak CG

I have my wings in the aft position, for now, but would like to try moving them to the forward position next chance I get to fly. I never measured the location of the cg in mine, but it is just behind the spar - maybe an inch behind, and it is pretty neutral. I will say this - all the feadback I have received about this plane says that the cg range is huge - like 3 inches huge. You can fly with confidence as it is the easiest tracking plane I have ever flown, with take-offs and landings easier than a trainer on a flight sim. It flies with such little airspeed it is truly amazing. I never weighed mine, either, but guessed it to be around 45 lbs with a 3W CS 170 and KS 1090 tuned pipes. What kind of scale did you use to weigh yours, and do you believe it to be accurate? 42 lbs is very light for this plane - good job if it's actually 42 lbs - that 210 will pulll like a freight train. I did put almost 2 oz in the counter balances of the elevators - about 1 3/4 oz of steel rod and epoxy, but not in the rudder. I just tried to neutralize the weight of the elevators.
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