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ť Forum Category: PT Boats of WWII
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ť Forum Name: PT Boats - General
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ť Topic: Impulse Chamber
http://www.ptboatforum.com/cgi-bin/MB2/netboardr.cgi?cid=101&fid=102&tid=5220

I have had plenty of questions about the older MK-VIII torpedoes and the tubes. What happens if the skipper presses the button to fire the torpedo and nothing happens: At that point an Emergency percussion firing happens which is when personnel stationed at the tubes, strike the torpedo impulse chamber firing pin with a mallet, upon the order to fire torpedoes. It should be standard practice to use this method of firing, whether electrical firing circuits are working or not. Here is one of the best photos showing the torpedo impulse chamber and the white button that would have been hit with a mallet to discharge the torpedo. Here you can clearly see in this photo the mallet held by this Sailor ready to strike that button for the impulse chamber

Posted By: Frank J Andruss Sr | Posted on: Jan 18, 2023 - 12:10pm
Total Posts: 3497 | Joined: Oct 9, 2006 - 6:09am