Cart Shopping Cart My Store Account Orders Downloads Shopping Cart Remove item Thumbnail image Product Price Quantity Subtotal × 14. Weight Predictor $20.00 14. Weight Predictor 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 × 22. Preliminary Design Equations for Aircraft Weight Estimation $20.00 22. Preliminary Design Equations for Aircraft Weight Estimation quantity $20.00 × 33. Some Problems in the Selection of Optimum Airplane Configurations for Minimum Weight $20.00 33. Some Problems in the Selection of Optimum Airplane Configurations for Minimum Weight quantity $20.00 × 1. Weight Economy $20.00 1. Weight Economy quantity $20.00 × 26. Weight Control Organization for Manufacturers $20.00 26. Weight Control Organization for Manufacturers 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 × 13. Will Accessories Impede Our Payload? $20.00 13. Will Accessories Impede Our Payload? 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