Cart Shopping Cart My Store Account Orders Downloads Shopping Cart Remove item Thumbnail image Product Price Quantity Subtotal × 731. Airframe Cost Element Prediction and Application to Cost Control $20.00 731. Airframe Cost Element Prediction and Application to Cost Control quantity $20.00 × 782. Heavy Lift VTOL - Effect of Weight and Size on Productivity $20.00 782. Heavy Lift VTOL - Effect of Weight and Size on Productivity quantity $20.00 × 740. Dynamic Balance Error Terms for Rotating Aerospace Vehicles $20.00 740. Dynamic Balance Error Terms for Rotating Aerospace Vehicles 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