51.   The plane is also capable of supersonic speeds.

52.   The plane is designed to combine supersonic speeds with stealth technology to thwart enemy radar.

53.   The test was performed to check various systems at supersonic speed.

54.   Today, I am writing about the jet engine, and about how cooking fuel can power a vehicle at supersonic speeds.

55.   At the supersonic speeds at which bullets travel even tiny movements can alter the direction of flight or create lift by changing airflow, the magazine said.

56.   Each can be easily fired by one person and travel at supersonic speeds, homing in on the heat generated by an aircraft engines.