Cart Shopping Cart My Store Account Orders Downloads Shopping Cart “13. Will Accessories Impede Our Payload?” has been added to your cart. Continue Shopping “9. Aircraft Balancing and Center of Gravity Control” has been added to your cart. Continue Shopping “4. The Weight Engineer and the Flutter Problem” has been added to your cart. Continue Shopping Remove item Thumbnail image Product Price Quantity Subtotal × 14. Weight Predictor $20.00 14. Weight Predictor quantity $20.00 × 13. Will Accessories Impede Our Payload? $20.00 13. Will Accessories Impede Our Payload? quantity $20.00 × 9. Aircraft Balancing and Center of Gravity Control $20.00 9. Aircraft Balancing and Center of Gravity Control quantity $20.00 × 4. The Weight Engineer and the Flutter Problem $20.00 4. The Weight Engineer and the Flutter Problem 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