Talk:Tag:historic=ship

Parts of ships

Tag historic=ship can be used for anchors or other parts of historic ships?

Modern or ancient frigate

How to tag theses frigates ?

• ship:type=frigate for both and appropriate dates start_date=* and/or end_date=*?

--Pyrog (talk) 20:20, 30 November 2017 (UTC)

Rendering

The rendering support for (historic) ships tagged according to the recommendations in the wiki is quite poor.

• In a river: None of the featured layers on osm.org show the ships. Examples:
  • Ships in Göteborg
  • HMS Belfast: (against the recommendations) also tagged with building=*
• In the sea, Mapnik is the only layer where ships appear (but in a quite ugly colour). Example:
  • USS Lexington
• Surrounded by natural=water: this seems to be the only case where all the layers actually show the ships. Example:
  • RMS Queen Mary (In december 2017, she is rendered because she have the tag building=yes --Pyrog (talk) 14:16, 13 December 2017 (UTC))

--Erik Lundin (talk) 23:33, 21 June 2014 (UTC)

The ships in Gothenburg are now rendered (with a colour like unmapped ground), maybe after the last update to openstreetmap-carto?. --Erik Lundin (talk) 10:12, 29 March 2015 (UTC) (Seem to render only historic=citywalls --Pyrog (talk) 14:16, 13 December 2017 (UTC))

They are visible on Historic place map as an overlay.

They also rendered on some layers on ground :

• mapnik black/white

• Hike & bike map

• OSM french style

But some could use:

• building=ship
• building=boat
• building=houseboat
• building=true
• building=yes

See usage on TagInfo --Pyrog (talk) 20:51, 30 November 2017 (UTC)

Commissioning and decommissioning date

I suggest to use start_date=* and end_date=*.
end_date=* could be the sunk date for a wreck and decommissing date for a ship.
See also Talk:Tag:historic=wreck --Pyrog (talk) 14:34, 13 December 2017 (UTC)

it seems out of scope for OSM, and for wreck start_date=* would be date of sinking anyway Mateusz Konieczny (talk) 07:13, 27 August 2020 (UTC)

What is wrong with building=ship?

"Don't use building=* on ships, even if they are remaining in one place." - why? Mateusz Konieczny (talk) 07:12, 27 August 2020 (UTC)

I'm not entirely opposed to this, but it does seem like it's probably just tagging for the renderer (since Carto doesn't render historic=* but does render building=*). If historic=ship should always also be tagged with building=ship, and vice versa, what's the point? What extra information does the building tag add? Casey boy (talk) 14:11, 24 November 2022 (UTC)

Just to clarify, I know historic=* is often used independently of building=* (for example) as some (most) buildings aren't historic. But we only map boats/ships that are historic and are permanently moored.

Also to note, the documentation for the equivalent historic=aircraft and historic=locomotive both specifically state not to use the building=* tag. Casey boy (talk) 14:17, 24 November 2022 (UTC)

Well, many such ships are functionally buildings in the same way as building=houseboat is (or even more) Mateusz Konieczny (talk) 17:08, 24 November 2022 (UTC)

That's the crux isn't it? The OSM definition for building is "man-made structure with a roof, standing more or less permanently in one place". I'm not sure you can really say a ship, or a submarine, has a roof. Most dictionaries are even stricter than this and state a building has walls and a roof. Casey boy (talk) 18:58, 24 November 2022 (UTC)

Note that not all building=ship qualify for historic=ship as not all of them are historic (though vast majority is) Mateusz Konieczny (talk) 17:08, 24 November 2022 (UTC)

Note: https://community.openstreetmap.org/t/tagging-historic-ships-as-buildings/5919 was posted Mateusz Konieczny (talk) 19:25, 24 November 2022 (UTC)

Thanks for posting that Mateusz, I was going to and then totally forgot! :) Casey boy (talk) 19:56, 24 November 2022 (UTC)

just a submarine

The page currently says that "submarine" type is for military ships. What if there's a small sub that could be military, could be civil - I have no way of telling. Are subs really only ever military? --Richlv (talk) 21:23, 27 June 2023 (UTC)