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Topic: Elco 77' Torpedo Tube Training Gear |
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Dick
Moderator
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Posted on: Jun 22, 2020 - 4:50pm
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Thanks Jeff . . .
I could not recover Andy Small photos because they came from his own " Photobucket " account. maybe if Andy sees this post he can tried to reinstated those photos Photobucket held ransom a while back.
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Total Posts: 1417 | Joined:
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Dick
Moderator
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Posted on: May 1, 2021 - 3:39pm
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Here is a copy of the post made earlier:
Hi Al . . .
It’s been a while, nice to see your post. There have been many torpedo questions on the forum over the many, many years. I’m guessing one of the several post concerning the torpedo tube training gear was this one here, where I was the lead on the discussion after receiving an email about the subject.
Link: http://www.ptboatforum.com/cgi-bin/MB2/netboardr.cgi?fid=102&cid=101&tid=3708&st=0&nd=10&pg=1&sc=20
The post started about 6 or 7 years ago, with the Elco 77 and 70 boats. It later progressed to early Elco 80 boats, but not much discussion. There are no Elco 80 engineering drawings that gave a clue as to installation, timming, or application of the “ Inline Drive or the 90-degree drive. “ At least none of which I have found. However your detailed engineering drawing of the the Mark 18 tubes clearly calls out the training drive types and parts. The biggest aid in making our assumptions, and that is what they were, assumptions, were based on photographic evidence. Not any detail engineering knowledge. We only discussed what we could see with our own eyes. This was that early Elco 77 and early Elco 80’s were using the inline tube training gearbox. With later photographic evidence showing later Elco 77’s and Elco 80’s were then using the more convent 90-degree gearboxes. See the photos below. And please read the reference link, I would love to know your opinion on the subject.
I hope all understand the hundreds and hundred of drawings that we now have, are far from all of the drawings that had to have been created just to make the Elco boat regardless of size. Also the thousands of DCN (Drawing Change Notices), TOD (Technical Order Dilemma) and the TOI (Technical Oder Instructions), all of which were needed to rectify manufacturing and Navy concerns and orders. I’m getting pretty old, to think I will ever make it to ARA at College Park to throughly score there records for more . . . .
Hopefully, I’ll post this answer post on the original post mentioned above to advance it to the top of the Forum here.
Reference Photos . . .
Dick . . .
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Total Posts: 1417 | Joined:
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Joe Reese
Advanced Member
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Posted on: Dec 9, 2023 - 12:29pm
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Hi all,
I know this is an old thread, but I found this footage of the tube being cranked outboard, and thought it may be of interest. I think it might be the same sailor doing the cranking.
https://catalog.archives.gov/id/75810
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Total Posts: 85 | Joined:
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Stearman
Advanced Member
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Posted on: Dec 9, 2023 - 10:03pm
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There's an Army 37mm antitank gun on the bow at 2:24. Unfortunately, not being fired. Cheers, Dennis
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Total Posts: 150 | Joined:
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smallwi
Advanced Member
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Posted on: Dec 10, 2023 - 7:20pm
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Spearman,
The boat with the 37mm anti-tank gun in the bow is PT 143.
Bill
Bill Smallshaw |
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Stearman
Advanced Member
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Posted on: Dec 10, 2023 - 10:46pm
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Thanks Bill!
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