## Newton's Guide to the Board of trade examinations of masters and mates of sailing ships and steam ships, in navigation and nautical astronomy |

### Dentro del libro

Resultados 1-5 de 39

Página 21

The result is the

The result is the

**True**Course . If over goo subtract it from 180 ° , and change N. into S. , or S. into ... The set of the current being generally given correct magnetic , no deviation is**required**. When all these courses are correctly ... Página 31

Divide by 60 if

Divide by 60 if

**necessary**; the result is the correction of the declination . Declination increasing , add ( always ) ... This method of obtaining the**true**altitude of the sun must be followed in the other problems where it is**required**. Página 35

The

The

**True**Course may be named by the following method : -Draw a line East and West to represent the Equator ; lay off the two Latitudes ; you can then see at a glance whether the ship ...**Required**the Course and Distance from A to D 2 35. Página 40

**Required**the times of High Water at the following places , on the days of the month opposite them for the year 1884 . 1. - On November 11th , at Guernsey , Spurn ... TO FIND THE**TRUE**AMPLITUDE . — To the log 40 Examples for practice ... Página 42

1885 : - February 17th , at 6h 54m P.M. , Apparent time at Ship ; in Latitude 50 ° S .; Longitude 29 ° E. The sun's observed amplitude was W. by N. I N.

1885 : - February 17th , at 6h 54m P.M. , Apparent time at Ship ; in Latitude 50 ° S .; Longitude 29 ° E. The sun's observed amplitude was W. by N. I N.

**Required the true**amplitude and error of the compass , and , supposing the ...### Comentarios de la gente - Escribir un comentario

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### Términos y frases comunes

ADDITIONAL FOR MASTER ANSWERS apparent applied Bearing of distant bore by compass centre Chart Chronometer showed Comp Compass bearings Compass courses correct magnetic bearing correct magnetic courses course to steer current set Declination Dist distance distant object dividers East error EXAMPLE eye 19 feet eye 20 feet feet Find the ship's following courses given Greenwich height of eye Index Error July lead line of position Long Longitude MATE Mean mean noon miles per hour North object by Standard observed altitude observed meridian altitude parallel pass question required the deviation Required the Latitude Required the true result ship ship's head Ship's Head Bearing ship's position Ship’s slow South Standard Compass Standard object subtract Sumner's Method sun's lower limb supposing the variation tide true azimuth West Winds

### Pasajes populares

Página 74 - In the following table give the correct magnetic bearing of the distant object, and thence the deviation. 8. With the deviation as above, give the courses you would steer by the Standard Compass to make the following courses, correct magnetic : — . . 9.

Página 7 - Having determined the deviation with the ship's head on the various points of the compass, how do you know when it is easterly and when westerly ? 4.

Página 144 - Compass to make the following courses, correct magnetic. 9. Supposing you have steered the following courses by the Standard Compass, find the correct magnetic courses made from the above deviation table.

Página 136 - Ship's Head by Standard Compass. Bearing of distant object by Standard Compass. Deviation required. Ship's Head by Standard Compass.

Página 8 - Compasses of iron ships are more or less affected by what is termed the heeling error ; on what courses does this error vanish, and on what courses is it the greatest ? 16. State to which side of the ship, in the majority of cases, is the North point of the Compass drawn in the Northern hemisphere ; and what effect has it on the assumed position of the ship when she is steering on Northerly, and also on Southerly courses ? . •. . . 17. The effect being as you state, on what courses would...

Página 13 - ... are the usual indications of a ship being on the line of progression of the centre of a Cyclone ? 5. What are the usual indications that a ship is (a) approaching the centre of a Cyclone ; fb) receding from it?

Página 8 - Q. 15. The compasses of iron ships are more or less affected by what is termed the heeling error. On what courses does this error vanish, and on what courses is it the greatest ? A.

Página 9 - Northerly, and also on Southerly courses ? 17. The effect being as you state, on what courses would you keep away, and. on what courses would you keep closer to the wind, in order to make good a given Compass course ? 18.

Página 145 - Tenby, by reckoning took a cast of the lead. Required the correction to be applied to the depth obtained by the lead line before comparing it with the depth marked on the Chart.

Página 13 - And suppose that the wind during the passage of the same cyclone were found to change toward the* , what would be the ship's position with reference to the line of progression of the centre of the cyclone, and what action would you take ? 8.