Lancair Legacy, Руководство по эксплуатации и полетной документации для пилотов, Страница: 100 / 188

VI-8 February 2008
Legacy
VI-9 February 2008
Legacy
Total moment weight are the moments from the weighing with the item and the
empty moment weight is the moment weight when the aircraft is in the empty
condition.
You first weighed the aircraft empty from which you obtained an empty total mo-
ment of 125685.875 lb-inches (see step 3). Then you weighed the aircraft with
a pilot on board and let’s say you recorded 498 lbs on the nose gear and 1181 lbs
on the mains. From the difference in weight we know the pilot is 206 lbs (needed
for calculation).
Total moment weight:
(498 lbs x 50.125”) + (1181 lbs x 104.25) = 148,081.5 inch lbs.
Moment arm = (148,081.5 – 125,685.88) / 206 = 108.72 inches.
In explanation, the center of gravity of the pilot is at FS 108.72
Repeat this calculation to determine fuel. If you would like you can also do it for
the baggage compartment or you can use the number provided for the center of
the baggage compartment of FS 141.
Step 5. Complete the Weight and Balance Form
Fill in the form and compute the center of gravity.
Note:
For your center of gravity calculations account for
minimum fuel. In explanation, you will always
have unusable fuel in the wings which should be
accounted for.