Beechcraft Musketeer Sport III A23-19 Pilot Operating Handbook page 115

BEECHCRAFT Sport III
Musketeer A23-19, 19A
SectionVI
Wt and Bai;Equip list
5. At the time of weighing, the airplane must be level
both longitudinally and laterally. Longitudinally and
laterally level attitude is determined with a level on the
baggage compartmant floor .
6. Measurement of the reaction arms for a wheel
weighing is made using a steel measuring tape .
Measurements are taken, with the airplane level on
the scales, from the reference (a plumb bob dropped
from the centerlina of airplane at F.S. 126.438, for-
ward screw in spar access cover, approximately 8 to
1 O inches forward of centerline dra in hole) to the axle
centerlina of the main gear and then to the nose wheel
axle centerline . The main wheel axle centerlinais best
located by stretching a string across from one main
wheel to the other . Ali measurements are to be taken
wit h t hetapelevel with the hangar floor and paraile l to
the fuselage centerline. The locations of the wheel
reactions will be approximately at Fuselage Station
129.5 for main wheels and Fuselage Station 57.6 for
the nose wheel.
7 . Jack point weighings a re accomplished by placing
scales at the jack points specified in step 1 above.
Since the center of gravity of the airplane is forward of
Fuselage Station 129.4, the tail reaction of the
airplane will be in an up direction. This can be
measured on regular scales by placing ballast of
approximately 200 pounds on the scales to which the
aft weighing point is attached by cable of adjustable
length . The up reaction will then betotal ballast weight
minus the scale reading and is entered in the weighing
form as a negative quantity .
8 . Weighing should always be made in an enclosed area
which i s free from air currents. The scal es used should
be properly calibrated and certified.
October 1979 6-5