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Model Tech Magic CG question

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Model Tech Magic CG question

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Old 01-30-2007 | 12:27 AM
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From: Broken Arrow , OK
Default Model Tech Magic CG question

Model Tech Magic.... I'm set up with brushless and find that RTF it's tail heavy. The CG is 3/4 inch back from the recommended.
Anyone have a Magic that can advise the results of leaving this permanent.
How will normal landings and general flight perform?
Old 01-30-2007 | 07:55 AM
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Default RE: Model Tech Magic CG question

I'd put enough lead in it to bring the CG up to where it's recomended, then start removing it a bit at a time till your happy with it. Flying with it that far back all at once could have dire consequences.
Old 01-30-2007 | 09:46 AM
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Default RE: Model Tech Magic CG question

Thanks for the good advise. Can I ask if it's just good general advise or did you own a Magic ??
Some planes recommended CG is not accurate. I'd really like to hear from people that know this particular plane.
Old 01-30-2007 | 10:00 AM
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Default RE: Model Tech Magic CG question

My Magic was never tail heavey, but I've played with the c/g a lot. It seems quite tolerant of a rearward c/g IF YOU'RE A VERY GOOD PILOT! Use a Higley heavey hub or platt spinner weight to get it forward and follw the above advice.

I opened the firewall just below the motor ans slip my battery in. It also allows me to move the c/g around.

I've had my Magic since they first came out and it's still my comfort plane if I haven't flown for a while or have jsut re-kitted something I've worked on all winter (-:
Walt
Old 01-30-2007 | 10:02 AM
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Default RE: Model Tech Magic CG question

I did own a Magic quite a while ago. Real good funplane but I didn't like the inverted performance with the flat bottomed wing, but it is very agile. I usually go with what's recomended, then move it to suit myself, just so I don't get any surprises.
Old 01-30-2007 | 11:15 AM
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From: Broken Arrow , OK
Default RE: Model Tech Magic CG question

Thanks for your input Walt.
I was hoping that I could get away without having to add ANY weight. I'm only pushing just under 400w on a Eflite 25 Outrunner.
Rather than use a weight up front, I was going to move the motor forward an inch or two on four 1/2 inch dowel rods. this should add just a little weight and move the 7oz. motor foward a bit. Moving the CG 3/4 inch shouldn't take too much ?? I only had 2oz. of weight and that was not enough to bring the CG where it needed to be. I'm thinking 3 or 4oz.

About the battery installation... I'm running 3S2P 2100 lipo so there is no room to move stuff around. I knew it was going to be tail heavy so I mounted the servos as far forward and used a light pull pull setup for control in the tail.


Flypaper 2,
Thanks for your input too. Every bit of info helps !!

ORIGINAL: Walt Thyng
Use a Higley heavey hub or platt spinner weight to get it forward and follw the above advice.

I opened the firewall just below the motor ans slip my battery in. It also allows me to move the c/g around.

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