Edgerton Lab Notebook 27, Page 122:
May 07, 1963
- Page start date:
- May 07, 1963
- Content type:
- notes
- Transcription:
- Page number - 122
May 7, 1963, Harold Edgerton
Sideways Pinger
Experiments May 3,4,5,6 showed excellent results.
The sea wall in from of ??? can be seen at 1200+ feet near the center of the bridge.
John Yules and I went into the harbor on Sunday May 5. The results were terrific.
He will write this up in his thesis. We as motor trouble and then a ????. Towed by
Bill Pendergast, No. 5 N. Steet South Boston, in Sea Breeze.
Donald Keach was here yesterday. We took him for a ride in Colleen? in the Chas.
River. The echos? from the wall and bridge were excellent & even? if the wind was blowing.
Plan a Friday expedition in the harbor on his ship. There the plan will be for the Trieste installation
to look for the Thresher.
May 11, 1963
Weather was bad on Friday, but we went out anyway. Strong East wind and cold.
Some results -- transducer was not held against ship.
Planned for Sat operation. Again naval storm?. Kearsley? & Carley? were at Naval
Annex at 8 am to meet Keach and Martin & Mackenzie discussed sonar?
plans for Trieste installation
drawing Two transducers to work side ways into water
1200? foot scale -- 2 per second pulses.
Angle about 10 degrees for 1000 feet 50 ft high
- Keywords:
- Donald Keach; John Yules; transducer; TRIESTE
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