Chapter 17

The Turbinia was the first turbine steamer.The Sperry Gyro-Compass does not oscillate with the rolling of the ship, or in other words, has no heeling error. The use of the helm is greatly diminished. Records show that on one trans-Atlantic liner a saving of 24 percent in the revolutions of the steering engine, when steered by Gyro-Compass, was effected. One of the largest trans-Atlantic liners reports that but one-third of the helm is used when the ship is steered by Gyro-Compass.High Potential Test on Repeaters.This saving in the use of the steering engine gives actual proof that the ship navigated by a Gyro-Compass steers a straight line course. It further proves that the ship does not divert its slip-stream as often—the power output of the main engines is thereby reduced.Records taken on a well-known passenger liner show that in making her regular trip between New York and Jacksonville, Florida, she saved more than two hours due to steering by a Sperry Gyro-Compass. A saving of 3,410 turns of her propeller was also effected. These savings were made even with much greater than the usual draft.Records taken by means of the Sperry Recording Compass show that when the helmsman is given a certain course he can keep the ship one and one-half degrees nearer the course when steering by the Gyro-Compass than when steering by magnetic compass.The Gyro-Compass can make great savings in money both in construction and operation of the ship. These factors are perhaps trivial when compared with the safety factor introduced by the use of the Sperry Gyro-Compass.Due to the elim­i­na­tion of the many un­cer­tain­ties of the mag­netic com­pass, insurance com­pan­ies are fav­or­ably dis­posed toward the use of the Sper­ry Gy­ro-Com­pass, which ul­ti­mate­ly will re­sult in a re­duc­tion of in­sur­ance rates.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.

The Turbinia was the first turbine steamer.

The Turbinia was the first turbine steamer.

The Sperry Gyro-Compass does not oscillate with the rolling of the ship, or in other words, has no heeling error. The use of the helm is greatly diminished. Records show that on one trans-Atlantic liner a saving of 24 percent in the revolutions of the steering engine, when steered by Gyro-Compass, was effected. One of the largest trans-Atlantic liners reports that but one-third of the helm is used when the ship is steered by Gyro-Compass.

The Sperry Gyro-Compass does not oscillate with the rolling of the ship, or in other words, has no heeling error. The use of the helm is greatly diminished. Records show that on one trans-Atlantic liner a saving of 24 percent in the revolutions of the steering engine, when steered by Gyro-Compass, was effected. One of the largest trans-Atlantic liners reports that but one-third of the helm is used when the ship is steered by Gyro-Compass.

High Potential Test on Repeaters.

This saving in the use of the steering engine gives actual proof that the ship navigated by a Gyro-Compass steers a straight line course. It further proves that the ship does not divert its slip-stream as often—the power output of the main engines is thereby reduced.Records taken on a well-known passenger liner show that in making her regular trip between New York and Jacksonville, Florida, she saved more than two hours due to steering by a Sperry Gyro-Compass. A saving of 3,410 turns of her propeller was also effected. These savings were made even with much greater than the usual draft.Records taken by means of the Sperry Recording Compass show that when the helmsman is given a certain course he can keep the ship one and one-half degrees nearer the course when steering by the Gyro-Compass than when steering by magnetic compass.The Gyro-Compass can make great savings in money both in construction and operation of the ship. These factors are perhaps trivial when compared with the safety factor introduced by the use of the Sperry Gyro-Compass.Due to the elim­i­na­tion of the many un­cer­tain­ties of the mag­netic com­pass, insurance com­pan­ies are fav­or­ably dis­posed toward the use of the Sper­ry Gy­ro-Com­pass, which ul­ti­mate­ly will re­sult in a re­duc­tion of in­sur­ance rates.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.

This saving in the use of the steering engine gives actual proof that the ship navigated by a Gyro-Compass steers a straight line course. It further proves that the ship does not divert its slip-stream as often—the power output of the main engines is thereby reduced.

Records taken on a well-known passenger liner show that in making her regular trip between New York and Jacksonville, Florida, she saved more than two hours due to steering by a Sperry Gyro-Compass. A saving of 3,410 turns of her propeller was also effected. These savings were made even with much greater than the usual draft.

Records taken by means of the Sperry Recording Compass show that when the helmsman is given a certain course he can keep the ship one and one-half degrees nearer the course when steering by the Gyro-Compass than when steering by magnetic compass.

The Gyro-Compass can make great savings in money both in construction and operation of the ship. These factors are perhaps trivial when compared with the safety factor introduced by the use of the Sperry Gyro-Compass.

Due to the elim­i­na­tion of the many un­cer­tain­ties of the mag­netic com­pass, insurance com­pan­ies are fav­or­ably dis­posed toward the use of the Sper­ry Gy­ro-Com­pass, which ul­ti­mate­ly will re­sult in a re­duc­tion of in­sur­ance rates.

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.


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