Including EMD and Operational Evaluation (OPEVAL), V-22 aircraft have flown more than 5,000 hours, participated in extensive ground-based and shipboard tests, achieved speeds of 342 knots (402 mph; 647 km/hr), altitude of 25,000 ft., gross weight of 60,500 lbs. and a G maneuver load factor of +3.9 at 260 knots.