Refer to igure 44 on page 46.
Calculate the weight and balance of the helicopter, and determine if the CG is within limits. WEIGHT ARM MOMENT (LB) (IN) (100) Empty weight 1,495.0 101.4 1,515.93 Oil, 8 qt --- 100.5 --- Fuel, 40 gal --- 96.0 --- Pilot 160.0 64.0 ---
Explanation
Correct answer: B. 97.58 within limits. First calculate the total weight of the helicopter. Add the empty weight (1495) plus the oil (15) plus the fuel (240) plus the pilot (160) the total of which equals 1910 pounds. Then calculate the moment of each weight: (Oil) 15 X 100.5= 1507, (fuel) 240 X 96=23040, (Pilot) 160 X 64=10240. All of these moments added together equals a total moment of 186380. Then take the total moment divided by the weight, which is, in this situation, 186380 (total moment)/ 1910 (total weight) equals 97.58. Next use the top graph and find where the total weight (1910 left side of the graph) meets the moment (97.58 bottom of the line). The two points meet in the approved area which means the helicopter is within limits.
