Moreover, government officials said air traffic controllers had picked up a mysterious radar blip that appeared to move rapidly toward the plane just before the explosion.
22.
A Weather Channel addict, I feel a tiny jolt of excitement today whenever I see those orange Doppler radar blips advancing across the screen, signaling severe thunderstorms.
23.
The 3083's also receive signals from each plane stating its identity, type of equipment, altitude and destination and helps tag each radar blip with the appropriate data.
24.
At the dawn SVTS conference on Thursday, an FAA official reported that a strange radar blip had crossed the TWA craft as it vanished from the screen.
25.
Other planes spotted it heading for New York, its green radar blip having gone dead, the connection suddenly severed by the actions of someone in the cockpit.
26.
Both have about 1, 600 on-line subscribers, barely a radar blip among the 5.25 million subscribers cruising the three main services, Prodigy, CompuServe and America On Line.
27.
The FAA controllers told him that the two planes were so close their radar blips had merged, and they could give no advice, The New York Times reported.
28.
If the transponder is off, the controller may still see a radar blip showing its location and can estimate the speed, but has no idea what its altitude is.
29.
Both have about 1, 600 on-line subscribers, barely a radar blip among the 5 . 25 million subscribers cruising the three main services, Prodigy, CompuServe and America On Line.
30.
Radar blips from a missing Air Force jet show the bomb-laden craft changed course in the mountains of Colorado five days ago _ evidence that a pilot may have been in control.
