gp 60 cub
10-22-2010, 08:41 AM
#1
Thread Starter
My Feedback: (69)
Join Date: Jul 2004
Location: , OR
Posts: 96
Likes: 0
Received 0 Likes
on
0 Posts
gp 60 cub
HI I HAVE JUST BUILT A GREAT PLANES 60 CUB I NEED HELP WITH BALANCING I HAVE A GP BALANCER WOOD LIKE TO KNOW WHERE TO PUT THE LEVEL TO SEE THE BALANCE OF THE PLANE I NEED SOME HELP THANKS CHARLES .
10-22-2010, 09:13 AM
#2
RE: gp 60 cub
As copied from the Cub's manual:
http://manuals.hobbico.com/gpm/gpma0162-manual.pdf
D 4 Accurately mark the balance point on the bottom of
the wing on both sides of the fuselage The balance point
is shown on the plan (CG), and is located approximately
4-1/2" back from the leading edge This is the balance
point at which your model should balance for your first
flights Later, you may experiment by shifting the balance
up to 3/8" forward or back to change the flying
characteristics Moving the balance forward results in a
model that tends to resist stalls and spins but may act
sluggish and require more speed for takeoff and landing.
Moving the balance aft makes the model more agile with a
lighter and snappier "feel " In any case, do not balance
your model outside the recommended range.
Note: The best balance point for a Cub 60 on floats is
4-1/4" back from the leading edge
D 5 With the wing attached to the fuselage, all parts of the
model installed (ready to fly), and an empty fuel tank,
block up the tail as necessary to level the stab.
D 6. Lift the model at the CG marks If the tail drops when
you lift, the model is "tail heavy" and you must add weight
to the nose or shift the servo tray forward to balance If the
nose drops, it is "nose heavy" and you must add weight to
the tail or shift the servo tray aft to balance Simply shifting
the servo tray may not be enough to adjust the C G , so
some added weight may still be required NOTE: Nose
weight may be added by gluing strips of lead onto the
firewall under the engine or by using a Heavy Hub
propeller nut Tail weight may be added by using "stick-on'
lead weights, and later if the balance proves to be OK you
can open the fuse bottom and glue these in permanently
This is the manual for the CG machine:
http://manuals.hobbico.com/gpm/gpmr2400-manual-v1_1.pdf
And this is a great how-to article:
http://www.rcuniverse.com/magazine/a...?article_id=84
http://manuals.hobbico.com/gpm/gpma0162-manual.pdf
D 4 Accurately mark the balance point on the bottom of
the wing on both sides of the fuselage The balance point
is shown on the plan (CG), and is located approximately
4-1/2" back from the leading edge This is the balance
point at which your model should balance for your first
flights Later, you may experiment by shifting the balance
up to 3/8" forward or back to change the flying
characteristics Moving the balance forward results in a
model that tends to resist stalls and spins but may act
sluggish and require more speed for takeoff and landing.
Moving the balance aft makes the model more agile with a
lighter and snappier "feel " In any case, do not balance
your model outside the recommended range.
Note: The best balance point for a Cub 60 on floats is
4-1/4" back from the leading edge
D 5 With the wing attached to the fuselage, all parts of the
model installed (ready to fly), and an empty fuel tank,
block up the tail as necessary to level the stab.
D 6. Lift the model at the CG marks If the tail drops when
you lift, the model is "tail heavy" and you must add weight
to the nose or shift the servo tray forward to balance If the
nose drops, it is "nose heavy" and you must add weight to
the tail or shift the servo tray aft to balance Simply shifting
the servo tray may not be enough to adjust the C G , so
some added weight may still be required NOTE: Nose
weight may be added by gluing strips of lead onto the
firewall under the engine or by using a Heavy Hub
propeller nut Tail weight may be added by using "stick-on'
lead weights, and later if the balance proves to be OK you
can open the fuse bottom and glue these in permanently
This is the manual for the CG machine:
http://manuals.hobbico.com/gpm/gpmr2400-manual-v1_1.pdf
And this is a great how-to article:
http://www.rcuniverse.com/magazine/a...?article_id=84
