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Reno · 11-26-07, 11:12 PM

While we're on the subject of hydrophones, I don't think the T-shaped JP hydrophone topside is supposed to be rotating when the boat's surfaced. That was turned manually when submerged, and according to Claude Conner (Nothing Friendly in the Vicinity) it was quite a workout. Of interest in the sonar operator's manual is the JP shut down procedure...

Securing JP gear
As soon as your submarine surfaces, secure the JP gear,
1. Turn the power switch off.
2.Train the hydrophone to 090 degrees if it is installed on the port side, or to 270 degrees if it is on the starboard side. 3. Hang up the headphones carefully. They are a special kind that cannot be replaced while you are on patrol. Other headphones do not work as well on JP gear.

11-26-07, 11:12 PM	#9
Reno Electrician's Mate Join Date: May 2005 Posts: 133 Downloads: 4 Uploads: 0	While we're on the subject of hydrophones, I don't think the T-shaped JP hydrophone topside is supposed to be rotating when the boat's surfaced. That was turned manually when submerged, and according to Claude Conner (Nothing Friendly in the Vicinity) it was quite a workout. Of interest in the sonar operator's manual is the JP shut down procedure... Securing JP gear As soon as your submarine surfaces, secure the JP gear, 1. Turn the power switch off. 2.Train the hydrophone to 090 degrees if it is installed on the port side, or to 270 degrees if it is on the starboard side. 3. Hang up the headphones carefully. They are a special kind that cannot be replaced while you are on patrol. Other headphones do not work as well on JP gear.