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    Re: ::: Finnmarken :::

    Originally posted by Tommi View Post
    Durban, could it have been a bunker & crew change stop or?
    From http://ports.co.za/shipmovements/dur...1_12_30_03.php

    CALLING FOR BUNKERS

    29/12/11 Kamari
    30/12/11 Cape Dawson, HHL Lagos, Copenship Africa, Stena Performance
    31/12/11 Anuket Jade, Christina Scan, Thor Swan

    01/01/12 Hibya Park, Belde, Finnmarken, Dubai Crown, Apollo
    02/01/12 Mandarin Phoenix, CMB Jailing
    03/01/12 Ada S, Besiktas Zealand, Marviu
    04/01/12 Pacific Endeavour, BK Champ
    05/01/12 Fountain 5
    07/01/12 Eemsgracht, Kate
    09/01/12 Naluhu
    10/01/12 Conti Bilbao, Alceste
    11/01/12 Deltagracht, Nord Voyager
    13/01/12 Tigris
    17/01/12 Conti Valencia
    24/01/12 Hermes Arrow
    Clipper
    ---------------------------
    Harald Jarl, Honningsvag to Svolvaer, Summer 1985.
    Deck plan geek.

    Comment


      Re: ::: Finnmarken :::

      Originally posted by Clipper View Post
      Could they have used too much fuel from using too high speed compared to what was in the original plan??
      They are now due in Cape Town for crew change as planned.
      Last edited by ombugge; January 4th, 2012, 17:21. Reason: correction

      Comment


        Re: ::: Finnmarken :::

        Finnmarken has rounded Cape Angulhas a couple of hours ago.
        Present speed 12.2 kts., which should put her in Cape Town tomorrow morning.

        Comment


          Re: ::: Finnmarken :::

          Ombugge, I took my eye off the ball and you beat me to it.

          Here she is:


          Info Received: 2012-01-03 21:04
          ETA: 2012-01-04 06:00

          Clipper
          Last edited by Clipper; January 4th, 2012, 01:50.
          ---------------------------
          Harald Jarl, Honningsvag to Svolvaer, Summer 1985.
          Deck plan geek.

          Comment


            Re: ::: Finnmarken :::

            Finnmarken is at Jackson Wharf, Cape Town. Arrived 0828 hrs. L/T. ETD ???

            Comment


              Re: ::: Finnmarken :::

              Finnmarken is leaving Cape Town.
              with kind regards,
              Joachim

              hurtigforum.de / hurtigwiki.de

              Comment


                Re: ::: Finnmarken :::

                Next port of call; Las Palmas. ETA 0800 hrs. 14.01.2012
                Last edited by ombugge; January 4th, 2012, 16:15. Reason: correction made

                Comment


                  Re: ::: Finnmarken :::

                  Originally posted by ombugge View Post
                  Next port of call; Las Palmas. ETA 0800 hrs. 14.10.2012
                  Not a bad cruise this is it? Singapore, Durban, Cape Town, Las Palmas!
                  Last edited by PoloUK; January 4th, 2012, 16:34.
                  Cheers,

                  Mark.

                  www.pologlover.co.uk

                  Comment


                    Re: ::: Finnmarken :::

                    Originally posted by ombugge View Post
                    Next port of call; Las Palmas. ETA 0800 hrs. 14.01.2012
                    ETA Las Palmas has been changed to 0800 hrs., 18.01.2012, which corresponds to an average speed of 13.5 kts.

                    PS> Assuming 1 day at Las Palmas, and if the rest of the voyage is also at 13.5 kts., she should arrive Bergen 25.01.2012.
                    Last edited by ombugge; January 4th, 2012, 17:23.

                    Comment


                      Re: ::: Finnmarken :::

                      Originally posted by ombugge View Post
                      ETA Las Palmas has been changed to 0800 hrs., 18.01.2012, which corresponds to an average speed of 13.5 kts.

                      PS> Assuming 1 day at Las Palmas, and if the rest of the voyage is also at 13.5 kts., she should arrive Bergen 25.01.2012.
                      Nice info, Ombugge. Are your calcs based on Great Circles or actual routes from a lookup table?

                      Clipper
                      ---------------------------
                      Harald Jarl, Honningsvag to Svolvaer, Summer 1985.
                      Deck plan geek.

                      Comment


                        Re: ::: Finnmarken :::

                        Originally posted by Clipper View Post
                        Nice info, Ombugge. Are your calcs based on Great Circles or actual routes from a lookup table?

                        Clipper
                        The route is mostly North so nothing to gain by great circle sailing.

                        Comment


                          Re: ::: Finnmarken :::

                          I'm missing something here.

                          Surely, anywhere on the surface of the world to anywhere else has a Great Circle solution regardless of direction. Even if a route was wholly North up a line of longitude, that would still be a still Great Circle. OK, longitudinal Great Circles are slightly shorter than the equatorial Great Circle but they are still Great Circles.

                          For a ship, the only thing that would invalidate a Great Circle would be a land or ice mass en route (ships don't sail too well over land/ice) but for an approximation of route length a Great Circle calculation or a series thereof via intermediate way points (such as Las Palmas) would be valid.

                          As far as I know, the only alternatives to Great Circle calculation(s) are:
                          • by look-up from an almanac of routes.
                          • by measuring off route segment(s) on an equidistant map projection or a series of minor distortion projections such as Lamberts. I didn't mention this before.

                          I was just wondering which method you used to calculate your estimate of Finnmark's sailing time.

                          By the way, I have a great implementation of the Vincenty Great Circle algorithm in javascript if anyone is interested. Form an orderly queue please.

                          Clipper
                          ---------------------------
                          Harald Jarl, Honningsvag to Svolvaer, Summer 1985.
                          Deck plan geek.

                          Comment


                            Re: ::: Finnmarken :::

                            From Maasmondmaritime Newsletter:

                            With best regards from Jan-Olav Storli

                            Administrator and Owner of CaptainsVoyage.
                            Main page: http://www.captainsvoyage.com

                            Surround yourself with positive, ethical people who are committed to excellence.

                            Comment


                              Re: ::: Finnmarken :::

                              Originally posted by Clipper View Post
                              I'm missing something here.

                              Surely, anywhere on the surface of the world to anywhere else has a Great Circle solution regardless of direction. Even if a route was wholly North up a line of longitude, that would still be a still Great Circle. OK, longitudinal Great Circles are slightly shorter than the equatorial Great Circle but they are still Great Circles.

                              For a ship, the only thing that would invalidate a Great Circle would be a land or ice mass en route (ships don't sail too well over land/ice) but for an approximation of route length a Great Circle calculation or a series thereof via intermediate way points (such as Las Palmas) would be valid.

                              As far as I know, the only alternatives to Great Circle calculation(s) are:
                              • by look-up from an almanac of routes.
                              • by measuring off route segment(s) on an equidistant map projection or a series of minor distortion projections such as Lamberts. I didn't mention this before.

                              I was just wondering which method you used to calculate your estimate of Finnmark's sailing time.

                              By the way, I have a great implementation of the Vincenty Great Circle algorithm in javascript if anyone is interested. Form an orderly queue please.

                              Clipper
                              Between any two different points on a sphere which are not directly opposite each other, there is a unique great circle.
                              If you are moving North/South along a meridian this is the Great Circle. Likewise if you are moving East/West along Equator.

                              If your starting and end points are far apart and at high latitudes the Great Circle may take you over the poles, which is utilized in aviation.
                              (FYI the first commercial transpolar flights was by SAS)

                              For shipping operating on high Latitudes the Great Circle route may be adventagiouse, unless you end up into ice, adverse weather or currents, in which case you may choose to "break" the Great Circle for part of the route.

                              Navigation is more than mathematics. It also involves knowledge of weather and current etc. Unless there is a lot to save most navigators will use the rhumb line course to navigate between two points.

                              I used this program to do the calculations: http://sea-distances.com/
                              They use the most adventagious route for their calculations, whether rhumb line or great circle.
                              Last edited by ombugge; January 5th, 2012, 00:26.

                              Comment


                                Re: ::: Finnmarken :::

                                Thanks Ombugge, nice site. It's a very modern type of almanac.

                                Clipper
                                ---------------------------
                                Harald Jarl, Honningsvag to Svolvaer, Summer 1985.
                                Deck plan geek.

                                Comment

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