| Description | 52. H.M.S. Leander (XQ & XR). Jul., Sep.-Dec. 1860, Feb., Apr., May-Aug., Nov. 1861, Apr. 1863. 50 items.
Two 100 horse power boat engines, each engine with two 34 inch cylinders, 21 inch strokes, with 9 inch donkeys.
Tracings of the engine room and boilers:
Sections and plan of the boat and engine room - partially coloured tracing; outline plan of the boilers - partially coloured tracing and uncoloured copy.
Components, drawings of the engines etc.
Propeller shafting - partially coloured drawing; plan and sections of the boilers - 2 partially coloured original and 1 partially coloured reverse drawing.
Cross-section of the engines - coloured drawing; longitudinal section of the engines and boiler - 2 coloured drawings; plan of the engines - 2 coloured drawings; cross-section of boilers - 2 coloured drawings; plan of blow off, injection cocks, pipes etc. - 2 coloured drawings; large sheet of partially coloured tracings of sections of the engines, propeller shafting etc.; arrangement of screw shafting - coloured tracing.
Waste water stop valve - partially coloured drawing (dated as Feb. 1860 - should be Feb. 1861?); "Parts of 200 horse as completed"; standard for telescopic lubricators for crank pin, ratchet turning gear, headstock frames, crank shaft and turning gear wheel and shaft and block - partially coloured drawings; connecting rod, cross bar and guide blocks - coloured drawing; starting wheel, bilge pump gear, delivery valve, foot valve, expansion gear (not dated) - partially coloured drawings; tracing showing old and new steam pipes. Most of the drawings bear letter codes.
Miscellaneous tracings, rough sketches etc.:
Tracing of part of the hull showing timbers; tracing of double throw crank shaft; part of boiler - partially coloured tracing; rough pencil section of boiler; small section showing hand wheel etc. - partially coloured tracing; "Improved Method of Securing Blades of Griffiths' Screw Propeller" - partially coloured tracing; tracing of chimney and waste steam pipe; tracing of small section showing deck beam; propeller - coloured tracing; tracing of internal steam pipe.
The following items are not dated: sections of boiler - partially coloured tracing; working gear (drawing originally made in Mar. 1858 and re-used); bilge pump gear (drawing originally made in Mar. 1859 and re-used); bracket for exhaustion shaft; expansion gear (also used for Prince Regent); small sketch section by Henry Beckwith showing timbers; tracing of plate showing crack.
Also printed form "Report of Trial of H. M. Steam Vessel Leander, 23 Nov. 1861; press copy of letter from James Brown Jr. to George Blaxland, dated 22 Apr. 1863 (2 sheets).
For H. M. Navy. Leander was built by J. & W. Dudgeon of Cubitt's Town Shipyard, Poplar, London.
See also: Portfolio 6/30 (drawings for both Leander and Prince Regent).
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