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Old Mar 22, 2003, 03:25 PM
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BAR-STOOL's Avatar
Lakeville Minnesota USA
Joined Jul 2002
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Gws Funny Park Balance Point

THIS IS A GREAT PLANE
SOME PEOPLE HAVE HAD TO ADD NOISE WT. I THINK GWS HAS THE BALANCE POINT WRONG. GWS SHOW 50-55 MM FROM LEADING EDGE THAT IS 1.97" TO 2.167"
I BALANCE ALL MY PLANES AT 30% TO 33% OF THE WING CORD.
THE FUNNY PARK HAS AN 8" CORD. 30% OF 8"= 2.4" OR 33% OF 8"=2.64"
I BALLANCED MY AT 2.5" BY SLIDEING THE BATTERY IN THE PLANE. I DID NOT HAVE TO ADD NOISE WT. THE FUNNY PARK FLYS IN STRONG WINDS OR CALM WINDS.

THANK YOU MR. GWS YO DID A FINE JOB ON THE FUNNY PARK.

ROGER
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Old Mar 23, 2003, 09:54 AM
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Long Island, NY
Joined Mar 2003
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with the help of a friend, we figured out my cg with no rudder servo, 8 cell nmh 720 ma pushed all the way up, to be 70 mm! Thats waaaaay off of gws recommended 55mm! Mine flew great. I still cant stop praising this plane!
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Old Mar 23, 2003, 10:08 AM
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Jefferson, GA
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Mighty close to Bar-Stool's 33% rule, though. Very interesting.

David J.
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Old Mar 23, 2003, 10:19 AM
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Northport, NY
Joined Dec 2002
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Yes Im seriously considering trying to fly it at about 65mm....I hate the way it flies at 55mm....whats strange is that it exhibits both tail heavy and nose heavy charecteristics.

Sean
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Old Mar 23, 2003, 10:31 AM
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Atlanta, Georgia
Joined Oct 2002
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I just posted on the previous thread, but mine balances out at 60-61 mm behind the leading edge with a 7 cell 720 mah nimh pack and flys like a champ.
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Old Mar 23, 2003, 11:55 AM
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Fooksy's Avatar
Western Washington
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Hey Foam,

Are you balancing upside down or right side up to find CG? It measures quite a bit differently on this plane. I'd heard that when measuring CG, the wings should be up top (so flip the low wing planes upsidedown).

-Josh
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Old Mar 23, 2003, 12:16 PM
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Northport, NY
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Hmmm Foosky I never did that with my stang but then again the FP has alot more camber...
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Old Mar 23, 2003, 12:24 PM
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Yes, Low Wing planes are balanced upside down.

Now this is the issue - the wing slants down at the recommended balance point. So using your fingers which Sean did is unaccurate.

You need to use two sharp tiped objects and place them under the CG spot to balance it.

With that said.

My Funny flies so nice. Better than E-Starter, and loops better than my Zero and is slightly faster. Also can glide.

Sean, keep trying, I know once you get it flying correctly, you'll like it.
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Old Mar 23, 2003, 12:26 PM
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Quote:
Originally posted by av8rOC
Hmmm Foosky I never did that with my stang but then again the FP has alot more camber...
So you balanced your Stang and Funny right side up???
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Old Mar 23, 2003, 12:31 PM
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Long Island, New York
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I'm going to fly the Killer again later.
It's real windy now, but hopefully it will die down.

Here it is after yesterdays maiden:
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Old Mar 23, 2003, 12:37 PM
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Northport, NY
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Quote:
So you balanced your Stang and Funny right side up???

Yes...and it flies perfectly. How does yours fly Les??? Oh wait yeah.....2 months and you still havent maidened it
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Old Mar 23, 2003, 12:38 PM
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Western Washington
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LOL! Okay, so lemme get this straight so that we're all on the same page and balancing this the same way. <snicker>

CG on this plane should be measured:
1) while upside down
2) balancing from the wing not the cockpit area

So you'd be measuring while balancing the plane on both sides where the wing meets the fuse? If this is the case, then my FP balances perfectly without any clay at all!


okay, lemme post a sideways pic with points labled. I WAS measuring at point A, but it sounds like you should be measuring from point B. ...and then some were measuring from point C?

-Josh
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Old Mar 23, 2003, 12:47 PM
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Sean, I have had 9 planes. My Stang is getting 3s Kokams, and I have retracts and was waiting for no snow on the runway.

I also got my A-10. I don;t mind waiting to maiden my planes. I set them up correctly and enjoy it that way.

Now to get back on track.

Your so wrong to be balancing the Low wings rightside up, all my low wingers are balanced upside down!

I just balanced my Funny Park on two chopsticks and measured the CG to be at 55mm 5 1/2 cm (2 1/4") with two 2s 1020 Kokams.

Mine flies great!
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Old Mar 23, 2003, 12:49 PM
plane crazy
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Northport, NY
Joined Dec 2002
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Foosky dont measure exactly where wing meets fuse, its a good idea to move out about an inch on each side. It makes no difference if you measure on top of wing or bottom as long as you are measuring straight from leading edge and not actually measuring the curve (camber) of the wing.

Sean
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Old Mar 23, 2003, 12:54 PM
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OK, HERE IT IS!
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