If you put that compass on a ship and turn the ship around in the same location, the compass would move slightly due to the ship's magnetic field. including the errors of observation, at least as to its limits, both in sign and amount (Chap. with the day of date and take out the R. Die Bewertungsfunktion ist nach Ausleihen des Videos verfĂĽgbar.

Next, to the ship M. Such a relative bearing must be applied to the true ship’s head to arrive at a true bearing for plotting on the chart. This will entail changing the compass course to Your cache administrator is webmaster. Melde dich an, um dieses Video zur Playlist "SpĂ¤ter ansehen" hinzuzufĂĽgen.

The Gyro Compass Although it is popularly believed that the gyro compass indicates true North, this is not necessarily the case. The gyro is subject to course, speed and latitude errors. A. Sprache: Deutsch Herkunft der Inhalte: Deutschland EingeschrĂ¤nkter Modus: Aus Verlauf Hilfe Wird geladen... Email: Email Settings Posting Code: Custom Index Subject: Author: Start date: (yyyymm dd) End date: (yyyymm dd) Visit this site Visit this site Visit this site Visit this site Visit this

Logarithmic Sines, Tangents, and Secants to every Minute of Arc and Fourth Minute of Time 27 X. If your vessel is on course 001° per gyro compass and the charted value of the range of lights is 359° T, what is the gyro compass error? Logarithms of Numbers and Small Arcs 5 VII; Logarithms of Numbers 1 to 1009 24 VIII. Examples of the Method by Alignments 73 86.

is readily deduced from the W. M. Comparison on Shore: Detection of Local Magnetism 89 IT INDEX TO THE TABLES. Wird geladen...

S 2i.2 By Tab. Bitte versuche es spĂ¤ter erneut. The shaded area in fig 1 represents the possible location of the pelorus since the position was estimated to be within 25 yards (one fourth of 100). A.

Page- 07. Jup. 13 59.6 H. io.3W?Dev. Examples of" True Azimuths by Computation.

N 67. Remark on the Preparation of the Data 41 53. b) The Angles measured from an Arbitrary Line. 91. b) For the Moon. 12.

Deviation Materials already magnetized, or even capable of being magnetized by the magnets of a compass, will cause the compass needle to deviate from its proper alignment with the magnetic meridian. A. TaTceoutthe Declination of the object, at sight, to the nearest tenth of the degree; for the Moon and Planets from the Naut. To find the Compass Error by Observation If there is some doubt as to the accuracy of the deviation card, or in any case as a periodical check, the deviation can

Star 22 50.7 H. Process of Conducting Reciprocal Observations 77 93. Pol. It is the difference between the angle of the magnetic meridian and the true meridian.

These are sometimes of the same name and sometimes of different names, and it is their resultant or combined effect which constitutes the Keduction-Error in a given case. 4. Methods hy Celestial Azimuths 84 100. Note the heading of the ship with the same compass, and the corre- sponding headings with the other compasses ; also, the Angle of Heel, if the ship be iron-built, with Dist.

COMPASS-COMPARISONS ON BOARD SHIP. 103. VerĂ¶ffentlicht am 22.11.2014How to calculate gyrocompass error by amplitude of the sun Kategorie Bildung Lizenz Standard-YouTube-Lizenz Mehr anzeigen Weniger anzeigen Wird geladen... Rule : To find the True Azimuth by the Azimuth-Tables 36 Remark I : Arguments to Odd Numbers. Apr. 24 12 15.5 Ship M.

have contrary names, in which it maybe convenient to take the supplement of tbe Compass-Azimuth for comparison with the True Azimuth, as in Exam- ples 2, 3, 4, 5, and 6 Almanac ' Tab. By Tab. c) Examples of True Azimuths by Computation.

Limiting-Errors of Time-Azimuths 142 XXXVIII. Therefore we can quickly compute that there is approx 333 yards DBO. (2000 divided by 60 = 33, 33 times 10 = 333. and Dec. There are two of these, as follows : x a] The Compass-Deviation.

The Data of a True Azimuth always liable to be in Error 42 56. Example Gyro error is known to be 2° high. The true course to be steered is 076°. What is the gyro course? Mean Sun Red" for 22 h .6 R. by an Azimuth of the Vertical Circle 71 82.

for i m ; then enter Tab. There are two distinct means by which it is obtained, whenever required on board ship. Yz Sum Yz H. m. 18 34.4 at Greenwich i5 h .o July 16. + 2.0 Diff. 18 36.4 for Greenwich date.

of the Sun at 6" 10 P.