Balancing Waco bipe
10-15-2008, 05:32 AM
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RE: Balancing Waco bipe
From the leading edge of both wings at the fuse (guess on the upper wing were the fuse would be) 1/3 back...make a dot, one dot on the top of each wing..now connect the 2 dots with an imaginary line....your CG starting point will be in the middle of the fuselage on that imaginary line
10-15-2008, 07:00 AM
#3
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RE: Balancing Waco bipe
ORIGINAL: jetmech05
From the leading edge of both wings at the fuse (guess on the upper wing were the fuse would be) 1/3 back...make a dot, one dot on the top of each wing..now connect the 2 dots with an imaginary line....your CG starting point will be in the middle of the fuselage on that imaginary line
From the leading edge of both wings at the fuse (guess on the upper wing were the fuse would be) 1/3 back...make a dot, one dot on the top of each wing..now connect the 2 dots with an imaginary line....your CG starting point will be in the middle of the fuselage on that imaginary line
Hey mech, wouldn't it be safer to go with "the middle of the line"?
The fuselage being closer to the lower wing means the center of it would be farther aft on that imaginary line than the center of that line would be. And the 1/3 back deal really only considers the relative location of the two wings and nothing else.
10-15-2008, 08:23 AM
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RE: Balancing Waco bipe
I have a pica waco the cg is 5 1/4" from le on top wing flys great you can gety more info on the vintage forum site hope this helps
happy landings charlie
happy landings charlie
10-15-2008, 04:58 PM
#7
RE: Balancing Waco bipe
ORIGINAL: jetmech05
Out of curiosity how close would we have been using the 1/3 top 1/3 bottom and the line between the dots have been?
Out of curiosity how close would we have been using the 1/3 top 1/3 bottom and the line between the dots have been?
Thats a reasonable method if you make the assumption that 33 1/3 percent Mac is the desired balance point which on that Airplane it is definately not. My 1/6th Pica Waco (the smaller version) flys beautifully at about 27% Mac.
10-15-2008, 06:47 PM
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RE: Balancing Waco bipe
Thanks mech
I got three differnt ways to find the balance from you experts. All three came out at the same location. I flew my Waco today and it was spot on. Thanks guys.
Merril
I got three differnt ways to find the balance from you experts. All three came out at the same location. I flew my Waco today and it was spot on. Thanks guys.
Merril
