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 Author  Topic: MTB 22.5 inch A.W. Torpedo Tube MK I
Andy Small

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Andy Small   Send Email To Andy Small Posted on: Feb 8, 2017 - 8:02am
Hi All,

While down at Huckins Yacht last month, I located their copy of a Feb 43 BuOrd plan of the MK I, 22.5 inch A.W. Torpedo Tube, which was designed to fire the Mk 13. While never installed on a Huckins PT, I understand these were mounted on a few boats before the switch to the roll-off racks?

I know Jerry mentioned these a while back and something about photos.

Cheers,
Andy

photo


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alross2

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of alross2   Send Email To alross2 Posted on: Feb 8, 2017 - 9:21am
Great find! Thanks for sharing. I've been looking for official drawings for this tube for some time. Higgins drawings indicate it was to be fitted to PT295-301. Here's a shot of 297 with them fitted:


Al


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Drew Cook

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Drew Cook  Posted on: Feb 8, 2017 - 3:21pm
Those look like shortened versions of the tubes on the Elcos and Huckins PTs in "They Were Expendable."


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Will Day

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Will Day   Send Email To Will Day Posted on: Feb 8, 2017 - 3:48pm
What about the Mk19 Mod 4 tubes that were fitted to the late Elcos that went to the Soviets? Were those designed for the MkXIII fish?

Will

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alross2

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of alross2   Send Email To alross2 Posted on: Feb 8, 2017 - 5:03pm
Will, great question, especially since it caused me to dig a little deeper into research. After looking at the ELCO and Higgins drawings for the US and Soviet boats, I discovered that the MK19 MOD 4 tube fitted to the Soviet ELCOs and most of the Soviet Higgins is about four feet longer than the MK19 Mod 0 and Mod 1. This makes sense, as the 533mm Type 53 Soviet torpedo was about 3 feet longer than the US MK8.

Based on the Higgins drawings, RPT1-12 had the shorter MK19 Mod 0 or Mod 1 tubes, while the rest had the longer Mod 4 tubes.

Al

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Will Day

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Will Day   Send Email To Will Day Posted on: Feb 8, 2017 - 6:59pm
Thanks, Al. On the subject, anyone have a theory as to what model tubes were used on the 139 & 141 boats during THEY WERE EXPENDABLE?

Will

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alross2

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of alross2   Send Email To alross2 Posted on: Feb 8, 2017 - 7:27pm
Based on the photos in BEHIND THE SCENES, they were crude fakes, essentially a long skinny tube on top of a longer, fatter tube.

Al


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Andy Small

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Andy Small   Send Email To Andy Small Posted on: Feb 8, 2017 - 7:46pm
They were prop tubes on stationary wood supports. On the 101 and 102 boats, that still had the old tubes, so they added the fake air tubes on top to match.

From PT98

photo

From PT102

photo

photo


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Drew Cook

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Drew Cook  Posted on: Feb 9, 2017 - 7:13am
Well, they had to have had some kind of real tubes to launch those Mark XIII fish in the battle scenes, right?


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Andy Small

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Andy Small   Send Email To Andy Small Posted on: Feb 9, 2017 - 8:16am
Drew,

I stand corrected! I just replayed portions of the movie and there sits the 22.5 inch tubes on the forward spots of the Elco playing PT41! So one boat of the six could fire the Mk13s.

photo

 photo Mk13_zpsgyqkbk0k.jpg

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