The Sperry Gyro-Compass

by Sperry Gyroscope Company

The use of the Sper­ry Gy­ro-Com­pass elim­in­ates in­ac­cu­ra­cies due to nav­i­ga­tion, there­by sav­ing time, in­suring the ship, the car­go, and the lives of pas­sen­gers and crew.

Sper­ry Gy­ro-Com­pas­ses are op­er­at­ing on many of the world’s larg­est and fast­est pas­sen­ger lin­ers and car­go ships. These ships are ma­king sav­ings every day of fuel used and time re­quired to make their courses. The nav­i­ga­tors using these com­pas­ses find that they can come very much nearer their cal­cu­lat­ed po­si­tions when steer­ing by the Gy­ro-Com­pass. The Gy­ro-Com­pass makes the art of nav­i­ga­tion more exact.

The Sperry Gyro-Compass is the only one to pass the service tests in the world’s navies.

Schooners are economical, needing but small crews.

The Sperry Gyro-Compass Equipment

HE equipment which applies the principle set forth in a practical way consists of:

• 1.The Master, True North Compass.
• 2.Comp­ass Con­trol-Pan­el—for con­trol­ling the elec­tric cur­rent.
• 3.Re­peat­ers—op­er­ated from the Mas­ter Com­pass, and in­di­ca­ting its exact read­ing at any ins­tant.
• 4.Mo­tor-gen­er­a­tor—for con­vert­ing the ship’s cur­rent into cur­rent of proper char­ac­ter­is­tics for spin­ning the gyro wheels and op­er­a­ting the re­peat­ers.
• 5.Stor­age Bat­tery—for emerg­en­cy op­er­a­tion of the equip­ment in case of fail­ure of the ship’s sup­ply.

The function of each piece of equipment and its relation to other parts is shown on pages 22 and 23.