Cart Shopping Cart My Store Account Orders Downloads Shopping Cart “8. A Practical Method for Wing Weight Estimation” has been added to your cart. Continue Shopping “23. The Value of a Pound” has been added to your cart. Continue Shopping “7. Predetermination of Weight Efficiency” has been added to your cart. Continue Shopping “2. Airplane Weight and Balance Control” 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 × 23. The Value of a Pound $20.00 23. The Value of a Pound 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 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $80.00 Tax $0.00 Total $80.00 Proceed to checkout