Free 186 More Best Homemade Tools eBook:  
Get 2,000+ tool plans, full site access, and more.

User Tag List

Page 1 of 10 1 2 3 4 5 6 7 8 9 10 LastLast
Results 1 to 10 of 98

Thread: Motion compensating ship personnel transfer gangway - GIF

  1. #1
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    25,409
    Thanks
    7,916
    Thanked 38,544 Times in 11,260 Posts

    Motion compensating ship personnel transfer gangway - GIF

    If two of our recent GIFs (Motion compensating ship crane and Boarding a moving cargo vessel) had a child, it would be this GIF: Motion compensating ship personnel transfer gangway.

    It's interesting how this is still a one-person-at-a-time transfer.



    Previously:

    Boarding a moving cargo vessel - GIF
    Motion compensating crane for moving cargo containers at sea - GIF

    186 More Best Homemade Tools eBook

  2. The Following 10 Users Say Thank You to Jon For This Useful Post:

    Captn Roy (Aug 14, 2018), gunsgt1863 (May 25, 2018), Moby Duck (May 22, 2018), NortonDommi (May 24, 2018), PJs (May 23, 2018), ranald (May 22, 2018), rgsparber (May 22, 2018), Scotsman Hosie (Feb 23, 2019), Seedtick (May 22, 2018), Toolmaker51 (Aug 27, 2018)

  3. #2
    Supporting Member rgsparber's Avatar
    Join Date
    Nov 2012
    Location
    Phoenix, AZ
    Posts
    1,277
    Thanks
    733
    Thanked 2,758 Times in 649 Posts

    rgsparber's Tools
    It is always cool to see what a simple feedback system can do given enough power. I wonder how the smaller ship senses the position of the big ship before the gangway is deployed. Maybe there are 3 targets on the big ship and distance sensors on the small ship.

    2000 Tool Plans
    Last edited by rgsparber; May 22, 2018 at 05:57 PM.
    Rick

  4. The Following User Says Thank You to rgsparber For This Useful Post:

    ranald (May 22, 2018)

  5. #3
    Supporting Member ranald's Avatar
    Join Date
    Jan 2018
    Location
    Black Mountain Queensland
    Posts
    1,326
    Thanks
    988
    Thanked 360 Times in 252 Posts

    ranald's Tools
    Needs more than the 3 police cameras & computer we have today in a patrol vehicle I suspect. Dare I say it............................Y not....................................I'd be all at sea there. :-).

  6. #4
    Supporting Member
    Join Date
    Sep 2012
    Location
    Hinchinbrook QLD
    Posts
    323
    Thanks
    44
    Thanked 138 Times in 84 Posts
    The larger vessel looks to be an FPSO The supply ship providing the crew most likely has azimuth thrusters to hold position. Connected to a DGPS system they can maintain incredible position accuracyon the high seas. About the only thing the gangway needs to do is compensate for rise and fall due to wave action.

  7. The Following 3 Users Say Thank You to 12bolts For This Useful Post:

    Captn Roy (Aug 14, 2018), ranald (May 22, 2018), Toolmaker51 (Aug 27, 2018)

  8. #5
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    25,409
    Thanks
    7,916
    Thanked 38,544 Times in 11,260 Posts
    3:16 source video:


  9. The Following 2 Users Say Thank You to Jon For This Useful Post:

    Captn Roy (Aug 14, 2018), rgsparber (May 25, 2018)

  10. #6
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    25,409
    Thanks
    7,916
    Thanked 38,544 Times in 11,260 Posts
    Stewart platform:



    More: https://en.wikipedia.org/wiki/Stewart_platform

  11. The Following 7 Users Say Thank You to Jon For This Useful Post:

    Captn Roy (Aug 14, 2018), KustomsbyKent (May 30, 2018), PJs (May 28, 2018), ranald (May 29, 2018), rgsparber (May 25, 2018), Seedtick (May 25, 2018), Toolmaker51 (Aug 27, 2018)

  12. #7
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    25,409
    Thanks
    7,916
    Thanked 38,544 Times in 11,260 Posts
    The old way of doing it. Transferring from the USS Rankin in 1960.


  13. The Following 2 Users Say Thank You to Jon For This Useful Post:

    ranald (May 29, 2018), Toolmaker51 (Aug 27, 2018)

  14. #8
    Supporting Member ranald's Avatar
    Join Date
    Jan 2018
    Location
    Black Mountain Queensland
    Posts
    1,326
    Thanks
    988
    Thanked 360 Times in 252 Posts

    ranald's Tools
    Takes me back to childhood. Flying foxes were fun even if crossing a flooded river.

  15. #9
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    25,409
    Thanks
    7,916
    Thanked 38,544 Times in 11,260 Posts
    Same concept of motion compensating stabilization, but instead of hydraulics...chicken:


  16. The Following 2 Users Say Thank You to Jon For This Useful Post:

    Moby Duck (Aug 27, 2018), that_other_guy (Sep 3, 2018)

  17. #10
    Supporting Member mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    3,433
    Thanks
    357
    Thanked 6,370 Times in 2,116 Posts

    mklotz's Tools
    Amazingly, this ability is present in most birds. Watch flamingoes or Canadian geese in flight. The body and lower neck moves up and down with the pulse of the wings but the head is rock-steady, seemingly inertially stabilized.

    I've seen films of woodland owls descending on prey on the forest floor. Flying between two closely spaced trees with the outstretched wings vertical to slip through, the head remains locked on the prey with the eyes horizontal.

    I can see the survival benefit of such ability in raptors but a flamingo vacuums its food out of muddy water with its head upside down so why does it need inertial guidance?
    ---
    Regards, Marv

    Home Shop Freeware
    https://www.myvirtualnetwork.com/mklotz

  18. The Following User Says Thank You to mklotz For This Useful Post:

    Jon (Aug 12, 2018)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •