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 “30. The Effect of Center of Gravity on Performance” has been added to your cart. Continue Shopping Remove item Thumbnail image Product Price Quantity Subtotal × 20. Wing Weight Estimating Simplified $20.00 20. Wing Weight Estimating Simplified quantity $20.00 × 10. Calculation of Landing Gear and Hydraulic System Weights $20.00 10. Calculation of Landing Gear and Hydraulic System Weights quantity $20.00 × 1. Weight Economy $20.00 1. Weight Economy 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 × 30. The Effect of Center of Gravity on Performance $20.00 30. The Effect of Center of Gravity on Performance quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $100.00 Tax $0.00 Total $100.00 Proceed to checkout