Talk:Shiplift

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I'm posting this on the talk pages of the related articles, in the hope of unifying them.

I've just discovered the very haphazard nature of articles relating to the various methods of (for want of a completely neutral discriptor) removing a boat or ship from the water. There is lots of crisscrossing going on between dry dock, slipway, patent slip, marine railway, shiplift .... There isn't even a page for the most common name of one method (albeit a brand name), Travelift, or lift ship, as used for the USS Cole.

I suggest the following reorganization:

• Drydock - with Floating Drydock and Graving Dock as subsections (pretty much as-is)
• Lift Dock - with Shiplift as a redirect (this because the same basic concept is applied to vessels from the smallest to the really big)
• Marine Railway - with Patent slip as a redirect
• Boat Ramp - with Slipway as a redirect
• Travelift
• Lift Ship

Each article would have a common set of links to the others.

Also, I think a distinction needs to be made between launching ways that have no means to haul a vessel out, and a true marine railway.

Comments? Pjbflynn 06:50, 17 December 2006 (UTC)

Leonard G's recent edits only highlight the need for clarifying this topic. I believe this article is meant to describe what I would call Lift Dock; a rigid platform that moves up and down off of which ships held in a cradle can be rolled or slid to enable further use of the lift. Lift docks do not use slings. There should be a seperate article on Travelifts. Pjbflynn 18:31, 6 January 2007 (UTC)

I changed some contributions because it went in the wrong direction. The basic idea of a shiplift is the fact that it uses a steel platform. The picture I deleted is a travellift or a boatlift for smaqll boats. This has nothing to do with a shiplift.A shiplift is fixed in a harbout, you can not drive with it. Most shiplifts in the world have capacities over say 800 tons up to 27000 tons, whereas the boatlifts/travellifts have max capacities of say 500 tons. There are some 4-5 companies over the world that supply shiplifts. Some of them use their tradename for a shiplift, such as Syncrolift (or Synchrolift) Docklift, Hyku lift etc, but these are just shiplifts with a steel platform and a number of winches.Lloyd's register of shipping uses the official name given by them, but not used by anybody else in the world: Mechanical Lift Dock>

"Lift ship" is a word I never heard before. In my opinion a lift ship does not exist.

Jeff 21:05, 29 January 2007 (UTC)

I forgot to say that a shiplift platform is always lowered and lifted exactly vertical!

Jeff 21:07, 29 January 2007 (UTC)