Cart Shopping Cart My Store Account Orders Downloads Shopping Cart Remove item Thumbnail image Product Price Quantity Subtotal × 2327. The Initial Weight Estimate $20.00 2327. The Initial Weight Estimate quantity $20.00 × 2300. Mass Properties Control Requirements for Step Mission 4 $20.00 2300. Mass Properties Control Requirements for Step Mission 4 quantity $20.00 × 2320. MD-600N Features, Capabilities, and Specification $20.00 2320. MD-600N Features, Capabilities, and Specification quantity $20.00 × 2319. 40 Years of Rotary Wing Technology ""What Happened to Weight Empty"" $20.00 2319. 40 Years of Rotary Wing Technology ""What Happened to Weight Empty"" 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