Airplane Manual FK 12 S2
FK Lightplanes
Revision FE
Weight & Balance
page 6-2
Formula to compute the center of gravity (X):
Center of Gravity in [mm]
CG
M
G
GG = total weight
GH = weight aft
X mm
GR GL
L
GH L
GG
(
)
1
2
GR = weight right
GL = weight left
Arms (Datum: wing leading edge):
L 1 main wheel
acc. empty weight
form
L 2 tailwheel
L 3 leading edge lower wing (fuselage)
L 4 leading edge upper wing (wingtip)
L 5 aft seat
57,87 inch / 1,47 m
L 6 front seat
23,62 inch / 0,60 m
L 7 fuel tank / forward baggage
3,15 inch / 0,08 m
6.3.
Determination of C.G. for the Flight
The Pilot is responsible for proper loading of the aircraft.
The C.G. can be determined by computation with the above mentioned
formula or by using the following graph. The C.G. must always be within
limits (compare chapter 1)!
