1.   Even this sortie was a test flight.

2.   No damage to the prototype aircraft was reported after its first test flight.

3.   The space agency impounded documents and even embargoed findings from the research gathered during the brief test flight.

4.   Sgt Smith was involved in many test flights during those early days of the war, before patrolling over the North Sea.

5.   After a short successful test flight it was wrecked when a pilot in a Bristol Fighter landed on top of it, and rebuilding had to begin.

6.   Astronaut Jerry Ross cut short a brief test flight during his final spacewalk when it appeared he was out of fuel.

7.   Before manned test flights could begin, the Soviet Union crashed.

8.   Boeing officials downplayed the incident and said the jet is expected to resume its test flights in the next few days after the engine is replaced.

9.   A prototype of the regional passenger plane was unveiled in November and its first test flight is planned this summer.

10.   A test flight last fall nearly ended up at the bottom of a lake.