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Description: | From ACO catalogue: " The compass, known as Pattern 27P, is mounted in a binnacle, Pattern 51P, in the conning tower. Two 6 volt lamps are mounted above the compass in such a manner that either may be swung over a condenser lens. This movement was effected by means of a rod passing through the hull. In this exhibit only a short operating rod is shown. The movement of the lamps also switches on the appropriate one. The image of the card is projected by the lamp through a system of prisms and lenses to a ground glass screen before the helmsman inside the vessel. For steering when on the surface a glass window is let into the binnacle cover and a third light is provided for lighting the card from below...."
Binnacle: Fitted with sphere brackets and spheres; racks for fore-and-aft and athwartship corrector magnets, and provision is made for vertical corrector magnets.
O.A. height of binnacle 34.0" (86.3 cm)
Lenght of projector tubing 119.0" (302.2 cm)
Inscription. Diameter 330mm. xxx1765 is another part of this compass
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | projector binnacles | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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