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Plane way nose heavy

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Plane way nose heavy

Old 04-29-2015, 02:49 PM
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Snowball1952
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Angry Plane way nose heavy

I HAVE A MIDWING PLANE THAT SOME ONE BUILT MANY YEARS AGO. WING SPAN 83 1/2",WING CHORD 15 1/2" FUSALUGE IS 60". MY PROBLEM IS I HAVE TO ADD 2 POUNDS 11 OZ TO GET IT TO BALANCE. IT HAS A MAGNUM 91 4 STROKE. IT WEIGHS 9 LBS 14 OZS WITH OUT THE ADDED WEIGHT. I HAVE BUILT AND FLOWN MANY PLANES AND NEVER HAD THIS SITUATION SO FAR OFF. ANY HELP WOULD BE GREATLY APPRECIATED. I CAN POST PICS IF YOU LIKE!!
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Last edited by Snowball1952; 04-29-2015 at 05:22 PM. Reason: MORE INFO FIX ERRORS
Old 04-29-2015, 03:45 PM
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flyinwalenda
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What engine is in it?
Old 04-29-2015, 03:55 PM
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Snowball1952
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Yes I should have put that in,sorry. It has a Magnum 91 4stroke. By the way the plane weighs 9 lbs 14 ozs with out the added weight.
Old 04-29-2015, 04:57 PM
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flyinwalenda
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Maybe it has an extra long nose ?
Anyone would be guessing without seeing detailed pictures and knowing how you balanced it and using what measurement.
Old 04-29-2015, 07:26 PM
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Can you move your receiver battery ALL the way back?, Mount the servos in the tail? and then use a really heavy tail wheel? I wouldn't be afraid to move the firewall back either...
Old 04-30-2015, 04:21 AM
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Snowball1952
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The whole thing I don't get is that it was flown by the father this way years ago. I just don't see how.
Old 04-30-2015, 07:04 AM
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Villa
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Hi Snowball 1952
Try this for the CG and report your findings: Measure from the leading edge of the wing to the trailing edge of the ailerons. Divide that figure by 4. Take that result and measure back from the leading edge of the wing for the location of the CG.
Old 04-30-2015, 03:34 PM
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Snowball1952
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thanks i will try it and let you know. Thanks
Old 04-30-2015, 04:08 PM
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Snowball1952
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Thanks it is pretty good and gives me a comfortable place to start. I won't be afraid to try now that I have a good place to start. Grateful!!!!
Old 05-01-2015, 07:43 AM
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I'm confused by the pictures.....can you clarify some things?
- It looks like you are using a vanessa?
- with the junk on the elevator stab it looks like you are balancing at the rearmost spot on the wing, right behind the cockpit?

if those are both true:
- that balance point seems very far back, too far back ( currently tail heavy not nose heavy ) ... where does it balance without the stuff on the elevator? I'd expect it someplace about the center spar on the wing.
Old 05-01-2015, 08:44 AM
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Originally Posted by mattnew View Post
I'm confused by the pictures.....can you clarify some things?
- It looks like you are using a vanessa?
- with the junk on the elevator stab it looks like you are balancing at the rearmost spot on the wing, right behind the cockpit?

if those are both true:
- that balance point seems very far back, too far back ( currently tail heavy not nose heavy ) ... where does it balance without the stuff on the elevator? I'd expect it someplace about the center spar on the wing.
I agree with Matthew if the plumbbob is located properly, the balance is way too far back. An earlier poster mentioned a good starting place for this model...1/4 of the chord starting at the wing LE and moving to the TE, is a good place for most any plane with rectangular wing.
Old 05-02-2015, 12:31 PM
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Snowball1952
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Thanks guys i think we got it worked out. I while let you know!!!!!!

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