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Draft mark

Printed From: Rontini Submarine BBS
Category: General
Forum Name: Submarine Related
Forum Description: Submarine Related Topics
URL: http://RontiniSubmarineBBS.com/forum_posts.asp?TID=4553
Printed Date: 25 Apr 2018 at 5:54am
Software Version: Web Wiz Forums 11.04 - http://www.webwizforums.com


Topic: Draft mark
Posted By: oldsubs
Subject: Draft mark
Date 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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Be Well
Oldsubs



Replies:
Posted By: ftg1ss
Date Posted: 16 Apr 2018 at 10:19am
6 inches


Posted By: oldsubs
Date Posted: 16 Apr 2018 at 11:24am
Not six inches.




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Be Well
Oldsubs


Posted By: Tom McNulty
Date Posted: 16 Apr 2018 at 12:16pm
18"

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SSBN599B,SSBN600B,SSBN611G
USNR Beaumont, TX,
USSVI Life Member
Mid Atlantic Base
Holland Club


Posted By: oldsubs
Date Posted: 16 Apr 2018 at 12:55pm
nice try, not 18"


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Be Well
Oldsubs


Posted By: Kwn
Date Posted: 16 Apr 2018 at 1:03pm
How bout I just paint over the old ones and not worry about it?


Posted By: oldsubs
Date Posted: 16 Apr 2018 at 1:13pm
Yeah.  Could always use the center punch dimples to trace the new numbers. 


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Be Well
Oldsubs


Posted By: Dr. Stan
Date 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".






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It has been my experience that folks who have no vices have very few virtues.~Abe Lincoln
SS-393, SSBN-610(B), SSBN-624(G), SSN-591
USSVI Life Member; Holland Club; Plank Owner, Smoky Mtn. Base


Posted By: oldsubs
Date 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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Be Well
Oldsubs


Posted By: Kwn
Date 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


Posted By: Rontini599
Date Posted: 23 Apr 2018 at 2:00pm
Someone estimated there are 25,000 coffee mugs on the bottom of Holy Loch!


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Those who do not read have no advantage over those who cannot!



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