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Old 07-10-2019, 05:11 PM
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Lazer to line up landing gear and wheel is an awesome idea.
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Old 07-10-2019, 11:40 PM
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First time standing on it's own.
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Old 07-11-2019, 12:07 AM
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I took some measurements this evening and plugged them into my spreadsheet CG calculator. I'll know the actual weight of the plane next week when I assemble with all equipment on the plane and weight it on the Xicoy CG Balancer. The balancer weighs the plane from the 2 front mains and the tailwheel. (Gear down) However today, the weights listed in the pic were only estimates on my part to project where the CG might fall.

From the manual, the CG is at 29%-30% of the center wing chord. That equals a distance of 17-17.5 cm from the leading edge. (6.79 inches)

So the question is .. how much will the CG differ with the gear retracted ???
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Old 07-11-2019, 07:50 AM
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So the question is .. how much will the CG differ with the gear retracted ???[/QUOTE]

Good question.

I have been slowly working on (between other projects) a Carf corsair, retracted gear will certainly change the CG on it. The gear are long and have 7" diameter wheels.
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Old 07-11-2019, 08:15 AM
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As they move parallel to the chord of the wing, no change will be noticed.
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Old 07-11-2019, 04:34 PM
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Quote:
Originally Posted by Lifer View Post
As they move parallel to the chord of the wing, no change will be noticed.
You are right about the effect but I think you meant perpendicular to the chord
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Old 07-12-2019, 08:00 PM
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Got wings today as I assembled for the first time to weigh on the Xicoy CG Balancer.

The engine baffle as shown is primer black. Debating whether to paint gloss black for more show.
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Old 07-12-2019, 08:14 PM
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Weight came in at 50.66 lbs. Balance appears to be almost spot on with just a slight adjustment of the batteries. The CG range is 17" to 17.50". I used 17.25" aft of leading edge. At 17.5" it balances on the money. When finished the plane should weigh in just under 52 lbs. When the gear is up it angles the wheels slightly forward and should give weight to the nose.
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Old 07-13-2019, 07:20 PM
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It's alive.
CARF Harvard AT-6 Texan Moki 250 First Start Up (0 min 14 sec)
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Old 07-13-2019, 07:40 PM
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Carf should list whether to balance with the wheel's up or down and however they state to do it it will be right for in flight. But as noted previously, with their direction of retraction no difference should be noted.

Beautiful plane!!
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Last edited by acerc; 07-13-2019 at 07:46 PM.
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