Name: Follow links in this column for more information, and for details of the career of unarmoured wooden screw vessels (or for snippets for other vessels in service in the period 1840-1880).
Launched: '1800a' means acquired in 1800; '1800r' means renamed in 1800 to name shown in 'Name' column; see 'Note' column for original name, under which entry other details are given.
Fate: year of sale, breaking up or loss; if lost or sold for reuse see details in 'Note' column.
H(ull): C = composite, I = iron, S = steel, W = wood.
P(ropulsion): H = hydraulic, P = paddle, S = screw, W = sail.
B.M. = burthen, builders measure (tons).
Disp. = displacement (tons); during this period displacement was replacing burthen as a measure of the 'size' of vessels.
Guns = initial number of guns (may have been different later in career). TT = torpedo tubes.
S.B. = ships book in the National Archives, 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. Merchant ship names in italics. Data in red are alternate data when sources disagree.

The data are mainly derived from these sources. For vessels not given here, try Paul Benyon's Index of 19th Century Naval Vessels. For earlier vessels, go to Mike Phillip's Ships of the Old Navy.