| 21. | Launched at 9 a . m ., it cruised within feet of the pingers an hour later.
|
| 22. | Called a " pinger, " the cylinder sets off a radio signal when immersed in water.
|
| 23. | The boxes are also equipped with sonar " pingers " to help searchers find them in water.
|
| 24. | First, he said, the sonic pingers that let searchers home in on boxes only function in water.
|
| 25. | But with a pinger locator, you know which side of the haystack you're looking at ."
|
| 26. | The results of the PingER Project, including source code, are made available to the public at no cost.
|
| 27. | Officials said Tuesday that the pinger had been knocked off the flight data recorder, which is actually painted bright orange.
|
| 28. | But investigators viewing videotape from the Deep Drone noticed the device as wreckage was being cleared to get to the pinger.
|
| 29. | Investigators noticed the orange-colored box on videotape as the USS Grapple's Deep Drone was targeting the pinger.
|
| 30. | Investigators say they are in generally good shape but the underwater " pinger " was ripped off the data recorder.
|
