Cart Shopping Cart My Store Account Orders Downloads Shopping Cart “33. Some Problems in the Selection of Optimum Airplane Configurations for Minimum Weight” has been added to your cart. Continue Shopping “23. The Value of a Pound” has been added to your cart. Continue Shopping “1. Weight Economy” has been added to your cart. Continue Shopping Remove item Thumbnail image Product Price Quantity Subtotal × 8. A Practical Method for Wing Weight Estimation $20.00 8. A Practical Method for Wing Weight Estimation quantity $20.00 × 9. Aircraft Balancing and Center of Gravity Control $20.00 9. Aircraft Balancing and Center of Gravity Control quantity $20.00 × 7. Predetermination of Weight Efficiency $20.00 7. Predetermination of Weight Efficiency quantity $20.00 × 2. Airplane Weight and Balance Control $20.00 2. Airplane Weight and Balance Control 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 × 23. The Value of a Pound $20.00 23. The Value of a Pound quantity $20.00 × 1. Weight Economy $20.00 1. Weight Economy quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $140.00 Tax $0.00 Total $140.00 Proceed to checkout