Cart Shopping Cart My Store Account Orders Downloads Shopping Cart “22. Preliminary Design Equations for Aircraft Weight Estimation” has been added to your cart. Continue Shopping “3. Aircraft Accessories – A Weighty Problem” has been added to your cart. Continue Shopping “20. Wing Weight Estimating Simplified” has been added to your cart. Continue Shopping Remove item Thumbnail image Product Price Quantity Subtotal × 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 × 22. Preliminary Design Equations for Aircraft Weight Estimation $20.00 22. Preliminary Design Equations for Aircraft Weight Estimation quantity $20.00 × 3. Aircraft Accessories - A Weighty Problem $20.00 3. Aircraft Accessories - A Weighty Problem quantity $20.00 × 20. Wing Weight Estimating Simplified $20.00 20. Wing Weight Estimating Simplified 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