Cart Shopping Cart My Store Account Orders Downloads Shopping Cart 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 × 23. The Value of a Pound $20.00 23. The Value of a Pound quantity $20.00 × 34. Pneumatic Controls for Aircraft $20.00 34. Pneumatic Controls for Aircraft 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 × 1. Weight Economy $20.00 1. Weight Economy quantity $20.00 × 35. A Graphical Method of Preparing Tabular Schedules for Balance Control in Loading Passenger Transport Aircraft $20.00 35. A Graphical Method of Preparing Tabular Schedules for Balance Control in Loading Passenger Transport Aircraft quantity $20.00 × 20. Wing Weight Estimating Simplified $20.00 20. Wing Weight Estimating Simplified 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 × 14. Weight Predictor $20.00 14. Weight Predictor quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $180.00 Tax $0.00 Total $180.00 Proceed to checkout