 A more powerful engine, developed under the Improved Turbine Engine Program, is expected to become available.Compared to the OH-58D Kiowa, the S-97 has significantly increased performance goals, such as cruising speeds upwards of 200 knots while carrying weapons, turning at three times the force of gravity at 220kt, and a high hover efficiency (Figure of merit).Sikorsky also aims for an operating cost of $1,400 per flight hour.