Liquid compass and binnacle

Liquid compass and binnacle

Bowl: Dia 11.4" 929.0 cm) Grey painted brass, filler plug at side, expansion chamber at base incorporated with glazed bottom. Inside of bowl painted white with two black lubber lines painted on white brackets attached to side. Mounted in grey painted brass gimbal ring 13.0" (33.0 cm) dia.

Card: Dia 8.25" (21.0 cm) White painted mica? with black markings, graduated to 1/4 points and quadrantally in degrees. Attached to a black float at centre.

Needle: Unsighted.

Pivot: Unsighted.

Binnacle: Dia 14.5" (37.0 cm) Octagonal wooden binnacle with brass fittings. Two wooden covers give access to the fore-and-aft and athwartship corrector magnet racks, there is a single large vertical magnet on a chain. Fitted with 'Flinders Bar' 12.25" (31.0 cm) long. Quadrantal correctors are athwartship tubes 6.0" (15.1 cm) long, 3.0" (7.6 cm) diameter.

O.A. height 44.9" (114 cm)

Object Details

ID: ACO0501
Type: Liquid compass and binnacle
Display location: Not on display
Creator: Ludolph, W.
Date made: circa 1936
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 1120 mm x 850 mm x 470 mm x 61 kg