Cart Shopping Cart My Store Account Orders Downloads Shopping Cart “2. Airplane Weight and Balance Control” has been added to your cart. Continue Shopping “25. The Effect of Overload and Unbalance on Long Range Operation” has been added to your cart. Continue Shopping “19. The Elements of Field Weight and Balance Control” has been added to your cart. Continue Shopping Remove item Thumbnail image Product Price Quantity Subtotal × 22. Preliminary Design Equations for Aircraft Weight Estimation $20.00 22. Preliminary Design Equations for Aircraft Weight Estimation quantity $20.00 × 1. Weight Economy $20.00 1. Weight Economy quantity $20.00 × 8. A Practical Method for Wing Weight Estimation $20.00 8. A Practical Method for Wing Weight Estimation quantity $20.00 × 30. The Effect of Center of Gravity on Performance $20.00 30. The Effect of Center of Gravity on Performance quantity $20.00 × 32. Weight and It's Effect on the Operation and Performance of Commercial Aircraft $20.00 32. Weight and It's Effect on the Operation and Performance of Commercial Aircraft quantity $20.00 × 2. Airplane Weight and Balance Control $20.00 2. Airplane Weight and Balance Control quantity $20.00 × 25. The Effect of Overload and Unbalance on Long Range Operation $20.00 25. The Effect of Overload and Unbalance on Long Range Operation quantity $20.00 × 19. The Elements of Field Weight and Balance Control $20.00 19. The Elements of Field Weight and Balance Control quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $160.00 Tax $0.00 Total $160.00 Proceed to checkout