rye

My Feedback: (10)

hi
how would u balance a biplane,thanks

radfordc

My Feedback: (14)

http://www.rc-airplanes-simplified.c...-airplane.html

http://www.modelairplanenews.com/blo...cing-biplanes/

http://www.rcgroups.com/forums/showthread.php?t=1305044

http://www.rcuniverse.com/forum/aero...g-biplane.html

rye

My Feedback: (10)

thanks but do i balance it upside down or from the bottom of the wing i amusing a greatplanes balancer http://www3.towerhobbies.com/cgi-bin...&I=LXK259&P=ML

radfordc

My Feedback: (14)

Right side up or upside down doesn't matter. The CG doesn't change.

raptureboy

Make one of these and you will not mess with that awful balancer again. http://www.rcuniverse.com/forum/tips...g-rig-how.html I can balance my 16# biplane without any issues at all.

Rafael23cc

My Feedback: (6)

One bathroom scale and a few wooden blocks will give you some awesome results too. A little math involved tho:

http://www.rcuniverse.com/forum/rc-s...-big-boys.html

Several math methods listed there. I have personally used rtstestpilot's method as I have one airplane that used to belong to him and he gave me the spreadsheet when I bought it.

Hope this helps.
Rafael

RBACONS

My Feedback: (3)

Assuming the CG falls within the cord of the top wing, you would balance it using the bottom of the top wing. If the CG only falls within the cord of the lower wing, then you would have to balance it upside down using the lower wing.

However, I too prefer using scales to measure the weight on each wheel (in flying attitude) and calculate the CG location.

52larry52

My Feedback: (1)

The newest issue of Model Airplane News (April 2016) contains an informative 3 page article titled "Center of gravity basics". Pick up a copy as it may answer some of your questions.

600Bob

How big is it? I have an 88" Tiger Moth, balance it right side up on my finger tips, no balance rig required.