1.   But how well the Apaches, which must fly low to avoid enemy radar, can maneuver at night is clearly being tested in the mountains here.

2.   Marine Corps tactics call for flying the Prowler at high speeds, to increase maneuverability, and at low altitudes, to avoid radar by hiding behind terrain.

3.   The plane has been sold, and is now being debated in Congress, largely on its ability to avoid enemy radar.

4.   Aviation officials said they had failed to notify air controllers of their wave-skimming flight, which avoided radar.

5.   Jordan said the plane had not received permission to enter its airspace and must have flown at low altitude to avoid its radars.

6.   Jordan, meanwhile, said the plane had not received permission to enter its airspace and must have flown at low altitude to avoid its radars.