Cart Shopping Cart My Store Account Orders Downloads Shopping Cart “25. The Effect of Overload and Unbalance on Long Range Operation” has been added to your cart. Continue Shopping “8. A Practical Method for Wing Weight Estimation” has been added to your cart. Continue Shopping Remove item Thumbnail image Product Price Quantity Subtotal × 15. Organization for Weight Control $20.00 15. Organization for Weight Control 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 × 8. A Practical Method for Wing Weight Estimation $20.00 8. A Practical Method for Wing Weight Estimation quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $60.00 Tax $0.00 Total $60.00 Proceed to checkout