Datum Forward of the Airplane -
Nose Wheel Landing Gear
The datum of the airplane in Figure 3-5 is 100 inches
forward of the leading edge of the wing root, or 128
inches forward of the main-wheel weighing points. This
is distance (D). The weight of the nose wheel (F) is 340
pounds, and the distance between main wheels and nose
wheel (L) is 78 inches. The total weight of the airplane
(W) is 2,006 pounds.