PT Boat Forum

Moderated by: Dick, Jeff D

The PT Boat Forum ª PT Boats of WWII ª  PT Boats - General

Page: 1 of 1

Back to Topic Index Page 1 | Replies: 0

 Author  Topic: Impulse Chamber
Frank J Andruss Sr


Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Frank J Andruss Sr   Send Email To Frank J Andruss Sr Posted on: Jan 18, 2023 - 12:10pm
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


Total Posts: 3497 | Joined: Oct 9, 2006 - 6:09am | IP Logged

Lock Topic


Forum Legend

New Member

Reply to topic

More than 25 posts | Full Member

Reply to topic with quoted message

More than 50 posts | Advanced Member

Edit Message

More than 150 posts | MASTER

View profile

More than 300 posts | TOP BOSS

Email member