Before revision: It was developed by Col. John Boyd, a fighter pilot, and Thomas P. Christie a mathematician with the Air Force, and is useful in describing an aircraft's performance as the total of kinetic and potential energies or aircraft specific energy.
After revision: ,It was developed by Col. John Boyd, a fighter pilot, and Thomas P. Christie a mathematician with the Air Force, and is useful in describing an aircraft's performance as the total of kinetic and potential energies or aircraft specific energy.