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The NRW is the OEW (minus crew and their luggage, food, water, or any operational equipment [REW]) plus the effect of missing airplane equipment and components, fuel, or cargo on board and the position of landing gear and flaps. For calculating the NRW, it is suggested that a form similar to Figure 2-11 be utilized and the weight and CG calculations be made as follows:

A.  Refer to the Weight and Balance Manual for the items in Figure 2-10 that have been removed from the airplane. The manufacturer’s empty weight is essentially a DRY weight including only those fluids contained in closed systems.
B.  Calculate the moment for those items that are applicable. (Each Moment = Weight x CG), (Pound-Inches [Lb-in.]).
C.  Find the REW (Recoverable Empty Weight). (REW = Summation of All Weights), (Pounds [Lb])
D.  Find the CG of the airplane in the REW condition. (The CG REW = the Summation of All Moments divided by the Summation of All Weights) , (Lb-In./Lb).
E.  Write the REW and CG REW in a format equivalent to the format (worksheet) shown (in Figure 2-11). Write these on Line 1 of the format.
F.  Write all equipment or assemblies damaged while the airplane made the landing. Write these items plus your removed items (to decrease weight) on Line 2 of the worksheet. The weight and the moment of some components are shown in Figure 2-12. Refer to the applicable weight and balance manual for components and assemblies which are not shown in this document.
G.  The CG REW applies to a specified airplane condition. In this condition, you must extend the landing gear and you must retract the leading edge slats and the trailing edge flaps. Find the effect on the CG when you have a different condition. (The gear or flaps or slats are not like this.) (The different conditions are shown in the airplane Weight and Balance Manual.) Write the effect on the CG on Line 3 of the worksheet.
H.  Find the quantity of fuel on the airplane and its effect on the CG. Write the effect on the CG on Line 6 of the worksheet.
I.  Find the weight and moment from OTHER FLUIDS on the airplane. The weight of oil in the engines and in closed systems is included in the airplane REW. There can be a change, if these oils are not on the airplane. You can ignore the engine oil but you must include all differences from other oils. You must include all differences from the potable water or the toilet fluids. Write these items on line 7 of the worksheet (The weights and arms are shown in the airplane’s Weight and Balance Manual).
J.  Find the weight and moment from CARGO on the airplane. You must include these items if they are on the airplane during the recovery. Write these items on Line 8 of the worksheet. (Refer to the cargo manifest for the cargo weight.)
K.  Find the NRW (NET RECOVERABLE WEIGHT) of the airplane and the location of the CG (Arm) .The NRW is line 5 (REVISED REW) plus Lines 6, 7 and 8 (fuel, fluids and cargo). Write the results on Line 9 of the worksheet.
　
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本文鏈接地址：757 Airplane Recovery Document 飛機恢復文件(39)