Talk:Tide-class tanker

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Untitled

Not sure who has been updating this page, but if you would like to update the information on the possible Australian acquisition section, see attached reference from Australian Defence Minister David Johnston:

http://www.minister.defence.gov.au/2014/06/06/minister-for-defence-transcript-naval-shipbuilding-announcement/

Cheers — Preceding unsigned comment added by Aussienscale (talk • contribs) 06:26, 17 June 2014 (UTC)[reply]

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Speed

The author of the article cited to support 27kt speed almost certainly got their data from Wikipedia. Circular reference. These were not intended as "Fast Fleet Tankers", merely as "Fleet Tankers". Wave class are designed for and capable of 21kts and are genuinely "Fast Fleet Tankers". Designed speed of Tides was 15/17kts (citable reference from UK Government website only said 15+, otherwise I'd have put 17). 27kts is fantasy. Anixtu (talk) 15:01, 16 July 2018 (UTC)[reply]

I agree there's confusion as HNoMS Maud also quotes 17 kt. However I don't think the 27 knot claim is off a wiki mirror see [1] Lyndaship (talk) 15:12, 16 July 2018 (UTC)[reply]

Another official source for 15+kts: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/678953/desider_115_Feb2018-Web.pdf Anixtu (talk) 15:11, 16 July 2018 (UTC)[reply]

BMT are probably the best source - they talk about a sustained speed of 18kts for Aegir-18. But who knows what peak speeds can be obtained with an empty ship and the electrics switched off. RN is rather notorious for its conservative approach to top speeds - Type 23 is quoted at "28+" knots, but there's public domain references to 32 knots and whispers of more than that.Le Deluge (talk) 02:01, 17 July 2018 (UTC)[reply]

Concept phase speed predictions will be different from those developed from tank testing of the production hullform and propulsion, and ultimately those proven by sea trials. Spec for Tides during design/build was 15kts sustained/17kts maximum. Trials speeds will include lightship (and ballasted, improved prop immersion can increase speed), generating capacity should comfortably exceed propulsion motor rating and so not a factor (it wasn't on the other diesel electric RFAs I operated). Whilst the RN may hedge their maximum speeds, those published for RFAs are generally accurate. Anixtu (talk) 09:47, 17 July 2018 (UTC)[reply]