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Top The TRMA Discussion Forum topic #55131
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Subject: "Boat Deck Entrance Door Dimensions" Previous topic | Next topic
JasonFri May-19-17 10:43 AM
Member since Jan 18th 2004
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#55131, "Boat Deck Entrance Door Dimensions"
Fri May-19-17 11:23 AMby Jason

  

          

Hi

Do we have relaible figures for the outer door dimensions, for the 1st and 2nd class entrance on the boat deck? I assume they were the same size.

I did some estimates off the Curie photo, and found the door combing to be 20cm (8") above the deck surface; the door opening width to be 88cm wide, and the door opening height at 1.89m.

Be interesting to get this double checked.

I know some of the door combings are 12" - but I had assumed all of them were until I looked at this.

Here's the Curie photo that has been adjusted to minimize perspective error:



I don't have a good image of the second class entrance near the mystery box...can anyone help with that?

/Jason







Attachment #1, (jpg file)

  

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Replies to this topic
RE: Boat Deck Entrance Door Dimensions, bpread, May 19th 2017, #1
RE: Boat Deck Entrance Door Dimensions, Jason, May 20th 2017, #2
      RE: Boat Deck Entrance Door Dimensions, bpread, May 20th 2017, #3
           RE: Boat Deck Entrance Door Dimensions, Jason, May 20th 2017, #4
                RE: Boat Deck Entrance Door Dimensions, bpread, May 22nd 2017, #5
                     RE: Boat Deck Entrance Door Dimensions, Ralph Currell, May 22nd 2017, #6
                     RE: Boat Deck Entrance Door Dimensions, bpread, May 22nd 2017, #7
                          RE: Boat Deck Entrance Door Dimensions, Ralph Currell, May 22nd 2017, #8
                     RE: Boat Deck Entrance Door Dimensions, Jason, May 22nd 2017, #9
                          RE: Boat Deck Entrance Door Dimensions, bpread, May 22nd 2017, #10

bpreadFri May-19-17 04:30 PM
Member since Sep 28th 2003
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#55134, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 0


          

Hi Jason
Since we don't have a Boat Deck deck house plan we have to look at another plan which might have a similar door. I believe we can find that on the "A" Deck (Promenade Deck) deck house plan. This plan shows a first class entry door to this same area but one deck down. The plan indicates that the door is 31 inches wide. The bottom of the door is 12 inches off the steel deck which would make it 9 inches above the wooden deck sheathing. Since the second class entrance is a similar public access doorway, I would expect it to be the same dimensions as the first class doorways.
Regards
Bob Read

  

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JasonSat May-20-17 12:41 AM
Member since Jan 18th 2004
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#55140, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 1
Sat May-20-17 03:20 AMby Jason

  

          

Hi Bob

Thank you. I was stupidly using the figure of 12" for the combings from deck surface, not beam height. That clears up some confusion.

Do we have a height for that door of A deck? I know most of them were about 1.9 m, but some are higher. My scaling shows this one to be 1.9m. I don't seem to have that plan you mentioned, unless it is buried somewhere. I am unable to find it anyway.

(edit) In the Curie photo, when I look at the open door and compare it with the width of the window which is known (30" or 76.2cm), the door appears wider than the 2cm it would be if its width were 31" (78.74cm). I know the door is marginally nearer the camera, and so would appear a little larger, but when I estimate the width using scaling techniques I get 88cm, which is almost 10cm.

In the image below, I have just moved a copy of the window and placed it above the door so we can see the difference. I could be wrong. What do you think?



/Jason

Attachment #1, (jpg file)

  

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bpreadSat May-20-17 05:48 AM
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#55143, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 2


          

Hi Jason:
The A deck door might not be the same as this one so let's do a photo analysis like you have been doing. Using the known 30 inch width of the window and comparing it to the door, I calculate via a proportional equation that the door is 33 inches wide.
To keep things in the same x,y dimensions, the window is 64 inches in known height. Comparing it to the door, I calculate 79 inches in height. When you add the 9 inches of the coaming below the door the height of the top of the door above the deck would measure 88 inches.

I would go with photo analysis numbers rather than the A deck plan numbers.

Regards,
Bob Read

  

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JasonSat May-20-17 08:56 AM
Member since Jan 18th 2004
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#55147, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 3


  

          

Thanks for your help.

  

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bpreadMon May-22-17 06:55 AM
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#55158, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 4
Mon May-22-17 07:00 AMby bpread

          

Hi Jason:
Ralph Currell called to my attention the drawing of the first class entrance on A deck directly below the boat deck entrance in the Curie photo. The width of the door in the plan drawing is 33 inches which is what we calculated from the photo. However the plan shows a height from the steel deck of 85-1/2 inches. The measured height of the Boat deck door was 91 inches above the steel deck (88 inches above the wooden deck). Which puts the top of the door on the boat deck 5-1/2 to 6 inches higher. Drawing a line fro the top of the door to the window inboard of it you can see where it is in relation to the height of the window. If we do the same thing with the Curie photo you can see that the line from the top of the door meets the inboard window at a higher point.
So why is the boat deck door higher? I don't know for sure but it may have been made higher to be able to ship something larger through this door. The body of an encased grand piano comes to mind but it could be something earlier in construction and fitting out.
Regards,
Bob Read





Attachment #1, (jpg file)
Attachment #2, (jpg file)

  

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Ralph CurrellMon May-22-17 09:35 AM
Member since Mar 31st 2007
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#55159, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 5


          

Hi Bob,

That's a good observation about the relative positions of the door and window. I don't think it necessarily invalidates the dimension given on the iron plan though.

I went back to the Olympic photo that we've been using and drew in a few reference lines. One thing that's easy to overlook is the shadow cast by the angle above the door. The door opening is slightly below the angle.



If we assume the 64 inch height of the window is correct (I don't recall the source for the figure printed in TTSM) then we can convert the image pixels to inches. I get about 74 inches for the height of the door opening (as compared to 73.5 inches shown on the iron plan), and a little under 9 inches for the deck-to-opening height.

Now I realize it's possible to tweak the reference lines to get slightly greater or lesser figures, but the point I wish to make is that it's close enough to the iron plan dimensions to accept them as correct.

Regards,
Ralph

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bpreadMon May-22-17 10:57 AM
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#55160, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 6
Mon May-22-17 11:03 AMby bpread

          

Hi Ralph:
The dimensions of "Pattern E" windows is interesting. It appears that there were two sizes as can be seen on the attachment from Andrews Notebook. The smaller size was on B deck. The larger size was on A Deck and the Boat Deck.
Regards,
Bob





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Ralph CurrellMon May-22-17 11:43 AM
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#55161, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 7


          

Hi Bob,

Thanks! I thought I had seen that before but couldn't remember where.

Regards,
Ralph

  

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JasonMon May-22-17 04:19 PM
Member since Jan 18th 2004
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#55162, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 5


  

          

Hi Bob

Thanks for sharing that. The door does seem lower in the iron plan, although I concur with Ralph regarding the widths. I wonder what the 52 x 30 dimension is referring to just above door?

/Jason

  

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bpreadMon May-22-17 05:35 PM
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#55163, "RE: Boat Deck Entrance Door Dimensions"
In response to Reply # 9


          

Hi Jason
I think it is referring to one of the steel sheets making up the deck house. The notation is actually: 14' 3" x 52" x .30 (thickness).
Regards
Bob Read

  

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