The F100, the most widely used turbofan engine in the U.S. Air Force, is a representative military engine manufactured by Pratt & Whitney and is installed in the F-15 and F-16 fighter jets. This item is a blade installed in the first stage of the high-pressure compressor, a core component of the F100-PW-220 engine. The blade is cast from a rhenium-based single-crystal superalloy and is coated with a ceramic heat-resistant coating. It is capable of 6,000 hours of safe operation in the most high-temperature and harsh environment of the entire engine, the combustor exit (maximum 1623K, 30 atm). Currently, a single high-pressure blade sells for approximately $45,000 new. This is a perfect collection item for military and aviation enthusiasts, as well as for industrial materials research. *This item is for display and research purposes only, and is not intended for use in actual aircraft.*