Explanation of vessel data
Explanation of vessel data

Royal Navy A;B;C;D;E - F;G - H; I - L; M; N - P; Q - R; S; T - U; V - Z; ??

(authorities often give conflicting values for numerical data; differences between sources may de due to differences between design and actual values)
All vessels (left column)
Name     If this is different from the selected name, then the ship was renamed (see Note).
Type     As launched.
Launched     "1800a" means acquired in 1800.
Builders Measure     Burthen (old capacity measure) to nearest ton.
Displacement     to nearest ton. During this period displacement was replacing burthen as a measure of the "size" of vessels. This prameter is particularly susceptible to variation (being dependent on whether the vessel was rigged, stored, armed etc.)
Guns     Initial armament; may have been different (generally a smaller number of larger guns) later in career.
Fate     Year of (sale for) breaking up or of loss; if lost or sold for reuse see details in "Note" column.
Class     Early in the period ships of the same (nominal) class sometimes showed quite considerable differences; authorities do not always agree on the allocation of early ships to classes, or on the name ship of the class.
SB     Ships book in the National Archive in London: ADM 135/xxx (giving the history of the maintenance of the ship - hull, machinery and armament - from construction to disposal).
Note     "1800 = Nnnnnn" means renamed to Nnnnnn in 1800; "1850 screw 1000 bm" means converted to a screw ship of 1000 tons burthen in 1850. c.h. = coal hulk; d.s. = depot ship.; h.s. = harbour service; r.s = receiving ship; t.s. = training ship; MV = mortar vessel; WV = watch vessel; YC = yard craft. TT = torpedo tubes. Merchant ship names in italics. Data in red are alternate data when sources disagree. Date format is yyyy.mm.dd.
Unarmoured wooden screw ships only (right column)
Type     In 1862 and again in 1876 groups of sloops were reclassified as corvettes (but both designations are to found for these vessels in contemporary literature for a considerable period thereafter).
Converted to screw     Year of undocking after conversion to the screw (or of completion if the date of undocking is unknown).
Builders Measure     After conversion to screw.
Displacement     After conversion to screw.
Length     Length on the gundeck to nearest foot.
Men     Nominal complement (there may have been different "peace" en "war" complements).
Last in commission     Year of paying off after last full commission for sea or coastguard service (i.e. not as stationary harbour flagship, training ship etc.);
'-' = never in full commission.
Class     After conversion to screw.
Career as unarmoured wooden screw warship (or snippets) (if appropriate)
Date Dates between (...) indicate status of the ship (and not a specific event) at this date.
Note: Data for many vessels are incomplete; I am adding data as I come across it (which effectively means: in a random order).
Note: Data on commanding officers is based on (in decreasing order of assumed reliability):
(1) Officers service records in the National Archives in Kew.
(2) Periodic ‘Navy Lists’ issued for the admiralty; many can now be found on internet.
(3) William R. O'Byrne’s 1849 "A Naval Biographical Dictionary" (obviously only for the early period)
(4) The generally daily “Naval Intellegence” column of the Times newspaper.
(5) Any other sources I may find.
The fact that officers might have to travel half way round the world to reach the ship to which they have just been appointed explains apparent overlap between commanders of a vessel.
Extracts from the Times newspaper
Date The date of the newspaper.
Event Entries quoted or paraphrased from (generally the "Naval Intelligence" column of) the London Times newspaper (systematic entries included up to 6 January 1847 - more to follow). If the article is dated earlier that the date of the newspaper, the article date is given in the top right corner.

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