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 Author  Topic: ELCO Bridge
29navy

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of 29navy  Posted on: Nov 17, 2008 - 4:20pm
Greetings All,

Here's a picture I found while doing my research on MTBSTC. It is a good close-up shot of an ELCO bridge.

ELCOBridge-pt139141.jpg


Charlie

Image size reduced to 900 pixels. Click below to see original size image:




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David Waples

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of David Waples  Posted on: Nov 18, 2008 - 5:59am
I wonder what boat this is from. There are some interesting items I hadn't seen before. For instance is that a socket wrench sticking out of the throttle quadrant? And the navigation device to the right of the clock. That seems to be one of several add on's. Does anyone recognize it?
Thanks for sharing!
Dave

David Waples

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29navy

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of 29navy  Posted on: Nov 18, 2008 - 6:19am
Not sure of the boat as the picture was unmarked, could be one of the training boats at Melville...I found this photo at the Naval War College. The device to the right of the clock is standard Pelorus that you shoot bearings with. I don't remember seeing ones in other pictures.

That is not a socket wrench but is part of the throttle controls. Don Shannon explained to me what it was and how it worked, but I forgot exactly so I don't want to say and confuse the issue. Frank? can you explain?





Charlie

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  TED WALTHER

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of TED WALTHER   Send Email To TED WALTHER Posted on: Nov 18, 2008 - 6:58am
Charlie;
just by looking at the throttle quadrant leads me to believe if it is a RON 4 training boat, it is probably Elco 80' PT's 139-141. But it might be 314-317, when did they move the throttle quadrant to the right side of the helm? did that start with the 314 or did that start with the 486 and the 500 series?
Take care,
TED


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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: Nov 18, 2008 - 12:50pm
Great post, Charlie -- thanks!

I think the "socket wrench" on the starboard side of the throttle quadrant may actually be a speed control lever...?

I think the three "throttle" levers in the quadrant were actually engine telegraph levers (reverse, neutral, forward), and the "socket wrench," or speed control, moved from the rear (idle) forward (fast/faster/fastest), possibly determined the speed the helmsman desired?

I'm basing this only on remembered scenes from the movie "PT 109," so...

Someone who knows the 80' Elco better will know all this for certain...


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29navy

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of 29navy  Posted on: Nov 18, 2008 - 4:01pm
Yes, the three levers on the throttle control (one for each engine) are indicators for reverse, neutral and forward. But, once you had it in forward, then you controlled the speed with those handles. I had originally thought they were only the indicators but I played with one at our Museum in Fall River and saw how it worked.

The lever on the side was some kind speed control, but I can't remember exactly how it worked. I'llhave to call Don.



Charlie

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fredtheobviouspseudonym

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Post a Reply To This Topic    Reply With Quotes     Edit Message   Posted on: Nov 18, 2008 - 11:59pm
It appears to be a great shot of the torpedo sight in the top right-hand corner.

The bar with the target speed seems self-explanatory -- but I'm not sure about the function of the other two horizontal dials. Were they to provide information for torpedo gyro-setting?

Thank you.


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Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Nov 21, 2008 - 2:29pm
Thank you for the image Charlie, great details!

Fred, you can read about a similar device here:

http://www.hnsa.org/doc/pt/doctrine/part4.htm


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QM

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Post a Reply To This Topic    Reply With Quotes     Edit Message   Posted on: Nov 21, 2008 - 5:23pm
It is interesting to see three compasses. To the right of the compasses is the ultraviolet light which was used to illuminate the instrument panel at night.

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fredtheobviouspseudonym

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Post a Reply To This Topic    Reply With Quotes     Edit Message   Posted on: Nov 21, 2008 - 8:44pm
Thanks, Jeff!

A useful discussion of how it was done.


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