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Subject: "RE: How was the deck of the compass platform constructed?" Previous topic | Next topic
BruceSat Mar-10-12 03:09 PM
Member since Apr 11th 2003
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#45373, "RE: How was the deck of the compass platform constructed?"
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Stephen,

The compass platforms on Titanic and other H&W ships were raised to remove them as much as possible from the influences of the structural steel. I actually found a reference for that somewhere specific to a H&W ship. This seems to be a H&W design that they believed in because the raised compass platform was not on all of the ships from this era.

The whole platform was removable. The decking was tongue and groove over wooden joists. The compass up there was what they called their “standard” compass because it was the compass in which the rest of the compasses were compared to. It was the “standard”. They did azimuths off of it and the like also. Titanic did not have Gyros. Even on Olympic, after Gyros were installed, they still recorded the readings from the raised platform compass against it. I have seen compass logs from Olympic with both readings being recorded.

Stephen you know this but let me try and clarify the issues with existing steel because I don't think it is well understood. As for the structural steel in the area of the compass, of course the compass could be corrected for this. Heck, did we forget that submarines used (and still do I assume) magnetic compasses? The railings of the docking bridge or a steel deck head over a compass can be compensated for as long as it is stationary and not moving. The shipping lines had deviation cards they provided that indicated the magnetic variations through different times of year and positions etc. But there had to be compass logs for any specific ship (like a slip table) because the ship itself is not a constant, so the officer’s still had to check the standard. When you have a large amount of steel within close proximity of the magnetic compass, it is then prone to effects brought on by the ship itself, position of the ship, sea conditions, time of year and so on. Again, H&W seemed to fancy the raised platform to avoid these issues as much as possible.

Bruce
TRMA Trustee

  

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How was the deck of the compass platform constructed? [View all] , Art Braunschweiger, Wed Mar-07-12 05:39 AM
  RE: How was the deck of the compass platform constructed?, Jonathan, Mar 07th 2012, #1
RE: How was the deck of the compass platform constructed?, Art Braunschweiger, Mar 07th 2012, #2
      RE: How was the deck of the compass platform constructed?, bpread, Mar 07th 2012, #3
           RE: How was the deck of the compass platform constructed?, sharktrainer, Mar 08th 2012, #4
                RE: How was the deck of the compass platform constructed?, Art Braunschweiger, Mar 08th 2012, #5
                     RE: How was the deck of the compass platform constructed?, bpread, Mar 08th 2012, #6
                     RE: How was the deck of the compass platform constructed?, Art Braunschweiger, Mar 08th 2012, #7
                     RE: How was the deck of the compass platform constructed?, sharktrainer, Mar 08th 2012, #8
                          RE: How was the deck of the compass platform constructed?, bpread, Mar 08th 2012, #9
                          RE: How was the deck of the compass platform constructed?, Art Braunschweiger, Mar 08th 2012, #10
                               RE: How was the deck of the compass platform constructed?, sharktrainer, Mar 09th 2012, #11
                                    RE: How was the deck of the compass platform constructed?, Art Braunschweiger, Mar 09th 2012, #12
                                    RE: How was the deck of the compass platform constructed?, sharktrainer, Mar 09th 2012, #13
                                         Here's the real deal, bpread, Mar 09th 2012, #14
                                              RE: Here's the real deal, sharktrainer, Mar 09th 2012, #15
                                              RE: Here's the real deal, Scott Andrews, Mar 09th 2012, #20
                                              RE: Here's the real deal, sharktrainer, Mar 09th 2012, #16
                                                   RE: Here's the real deal, jds88, Mar 09th 2012, #17
                                                   RE: Here's the real deal, Art Braunschweiger, Mar 09th 2012, #18
                                                        RE: Here's the real deal, Jonathan, Mar 09th 2012, #19
                                                             RE: Here's the real deal, sharktrainer, Mar 10th 2012, #21
                                                                  RE: Here's the real deal, Art Braunschweiger, Mar 10th 2012, #22
                                                                       RE: Here's the real deal, sharktrainer, Mar 10th 2012, #23
                                                                            RE: Here's the real deal, Art Braunschweiger, Mar 10th 2012, #24
                                                                                 RE: Here's the real deal, sharktrainer, Mar 10th 2012, #26
                                                                                 RE: Here's the real deal, bpread, Mar 10th 2012, #27
                                    RE: How was the deck of the compass platform constructed?, Bruce, Mar 10th 2012 #25
                                         RE: How was the deck of the compass platform constructed?, Art Braunschweiger, Mar 10th 2012, #28
                                              RE: How was the deck of the compass platform constructed?, bpread, Mar 11th 2012, #29
                                              RE: How was the deck of the compass platform constructed?, Art Braunschweiger, Mar 11th 2012, #30
                                              RE: How was the deck of the compass platform constructed?, Bruce, Mar 11th 2012, #31
                                              RE: How was the deck of the compass platform constructed?, sharktrainer, Mar 11th 2012, #32
                                                   RE: How was the deck of the compass platform constructed?, sharktrainer, Mar 11th 2012, #33
                                                        nm, Bruce, Mar 11th 2012, #35
                                                             nm, sharktrainer, Mar 11th 2012, #36
                                                                  RE: How was the deck of the compass platform constructed?, Bruce, Mar 11th 2012, #37
                                              RE: How was the deck of the compass platform constructed?, sharktrainer, Mar 11th 2012, #34
                                                   RE: How was the deck of the compass platform constructed?, Jonathan, Mar 12th 2012, #38
                                                        RE: How was the deck of the compass platform constructed?, c riley, Mar 12th 2012, #39

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