6-5. WEIGHT AND BAL ANCE DE TER MI NA TION - PAS SEN GER
CON FIG U RA TION
1. To de ter mine that the gross weight and lon gi tu di nal cen ter of
grav ity (fore and aft) for a given flight are within lim its, pro ceed
as fol lows:
a. Ob tain the air craft de liv ered weight and lon gi tu di nal mo ment
from the Weight and Bal ance Re cord in serted in the back of
this man ual.
b. De ter mine weights and lon gi tu di nal mo ments of use ful load
items (Fig ure 6-7).
c. Add the above items (Ex am ple I).
Ex am ple I - Based on 32.5 gal us able fuel
Items Weight (Lb) Long. Mo ment (In-Lb.)
De livered Weight 1,105 111,274
Pi lot - Right-Hand 170 14,144
Pas sen ger - Left-hand 170 14,144
1. Sub-To tal Gross Weight 1,445 139,562
Fuel-Full Tank (32.5 gal) 195 21,158
2. Gross Weight 1,640 160,720
d. Cal cu la tion of Lon gi tu di nal CG
(1) CG (Zero Fuel Weight):
Mo ment at Zero Fuel Weight 139,562
———————————— = ————— = 96.6 in.
Zero Fuel Weight 1,445
(2) CG (Gross Weight):
Mo ment at Gross Weight 160,720
——————————— = ————— = 98.0
Gross Weight 1,640
Weight and Balance
Pilot's Flight Manual
Reissued: 16 Jan 2019 6-9
SCHWEIZER
Model 269C-1 Helicopter
CSP book 2..indd 131 8/4/19 12:54 PM
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