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Draft mark

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oldsubs View Drop Down
Neptune
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Post Options Post Options   Thanks (0) Thanks(0)   Quote oldsubs Quote  Post ReplyReply Direct Link To This Post Topic: Draft mark
    Posted: 16 Apr 2018 at 10:05am
OK, You are just reporting aboard a USS Seawolf  (SSN 21).  You need to supervise the painting of draft marks. Lets say the draft marks on the bow run up to 30 feet.  (I don't know whether they actually do.)  You are smarter than the average rock and "I don't need to lookup no f'in plans, I'm qualified!!!"

How far it is between the top of the numeral "29" and the bottom of the numeral "30". 




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Oldsubs
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Old Salt
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ftg1ss Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 10:19am
6 inches
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oldsubs View Drop Down
Neptune
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Post Options Post Options   Thanks (0) Thanks(0)   Quote oldsubs Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 11:24am
Not six inches.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom McNulty Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 12:16pm
18"
SSBN599B,SSBN600B,SSBN611G
USNR Beaumont, TX,
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Neptune
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Post Options Post Options   Thanks (0) Thanks(0)   Quote oldsubs Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 12:55pm
nice try, not 18"
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Kwn View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kwn Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 1:03pm
How bout I just paint over the old ones and not worry about it?
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Neptune
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Post Options Post Options   Thanks (0) Thanks(0)   Quote oldsubs Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 1:13pm
Yeah.  Could always use the center punch dimples to trace the new numbers. 
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Dr. Stan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dr. Stan Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 2:38pm
Looking at the below photo one can see an officer with a briefcase in his left hand.  The length of his left foot is about the same distance as from the top of the numeral 5 to the bottom of the numeral 36.  If he wore a #10 shoe and it was actually 10" long then the distance between the numbers would also be 10".

Therefore, my guess is 10".




It has been my experience that folks who have no vices have very few virtues.~Abe Lincoln
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Neptune
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Post Options Post Options   Thanks (0) Thanks(0)   Quote oldsubs Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 3:01pm
You are as close as anyone.  The numbers are 6" high and 6" apart when vertical.  But when they are painted on the curved surface of the boat they must be larger and further apart so they project properly from the surface to the vertical.  A bit of math shows that the 29's top will be just a bit more than 9" from the 30's bottom and the numerals 3 and 0 will be about 9.5 inches high. 


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Kwn View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kwn Quote  Post ReplyReply Direct Link To This Post Posted: 17 Apr 2018 at 2:32pm
wow, that made my head hurt. Here all along all I thought they were for was as a target to hit when bouncing a coffee cup off the hull during mid watch.Wink
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