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» Forum Category: PT Boats of WWII
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» Forum Name: PT Boats - General
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» Topic:
Mark-XIII propellers
http://www.ptboatforum.com/cgi-bin/MB2/netboardr.cgi?cid=101&fid=102&tid=3411
I have always assumed that the propellers used on both the Mark VIII and Mark XIII torpedoes were made of bronze. Hence the bronze propellers on the 623 although only 3 blade instead of 4. Recently I have been told that they were made of stainless steel covered in grease making them appear black. In the color photo on page 86 in Garth's book they appear to be bronze but... So, I have come to the place where experts gather to solve my mystery before they get recalled to the paint shop. I have also noticed that one of my mufflers have split wide open. Must have taken a hit from one of those damn barges !
Posted By: Roy Forbes | Posted on: Nov 15, 2013 - 9:29am
Total Posts: 371 | Joined: Sep 5, 2012 - 4:57pm
Hi Roy
The are forged steel. The hubs they mount to have bronze bearings. Here is an excerpt from the torpedo manual. Jerry
[image]http://i130.photobucket.com/albums/p249/ptboats/Jerry%20G%20PT658/torpedopropellers.jpg[/image]
Jerry Gilmartin
PT658 Crewman
Portland OR
Posted By: Jerry Gilmartin | Posted on: Nov 15, 2013 - 12:34pm
Total Posts: 1473 | Joined: Oct 8, 2006 - 11:16pm
Awesome Jerry, thanks a bunch. So off to the paint shop they go.
Posted By: Roy Forbes | Posted on: Nov 15, 2013 - 2:33pm
Total Posts: 371 | Joined: Sep 5, 2012 - 4:57pm
I took this shot of a Mk13 in Old Town Alexandria at their Torpedo Station (now a shopping district). I posted a side shot earlier.
[image]http://i130.photobucket.com/albums/p249/ptboats/Nathaniel%20Smith/mk13propellers.jpg[/image]
[image]http://i130.photobucket.com/albums/p249/ptboats/mk13nametag.jpg[/image]
natsmith
Posted By: Nathaniel Smith | Posted on: Nov 16, 2013 - 5:00am
Total Posts: 211 | Joined: Jan 19, 2008 - 6:55am
Thanks for the photos Nate. Those photos are a big help
Posted By: Roy Forbes | Posted on: Nov 16, 2013 - 7:08am
Total Posts: 371 | Joined: Sep 5, 2012 - 4:57pm