1. TOPIC OF TRAINING GYRO ERROR AND MAGNETIC COMPASS DEVIATION
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2. PRE - TEST
1.The gyro error and magnetic compass deviation should be ascertained by oow every …. ?
2. If OOW does not able to check compass
error due weather or condition of vessel
what the record should be recorded?
3. Describe equipment and publication to used
ascertained gyro error and magnetic compass
deviation ?
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3. BASE ON OIL MAJOR OBSERVATION
1. OFFICER ON WATCH DOESN’T CARRIED OUT
MAINTENANCE COMPASS ERROR BOOK.
2. COMPASS ERROR OBSERVED FOUND THAT
DEVIATION MORE THAN 2 DEGREE.
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4. OBJECTIVE OF TRAINING 1. OFFICER ON WATCH SHALL COMPLY
WITH PROCEDURE OF EOHS
2. OOW ABLE TO CALCULATED AND
RECORDED ERROR GYRO COMPASS
3. NO OBSERVATION IN OIL MAJOR
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5. EOHS GBLT 0406 NAVIGATION AND BRIDGE PROCEDURE
3.21 GYRO COMPASSES
3.22 MAGNETIC COMPASS
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6. VESSEL ISPECTION QUESTIONARY CHAPTER 4. NAVIGATION
4.11. Are regular gyro and magnetic compass errors being taken and are they being recorded ?
Notes: The gyro error & magnetic compass deviation should be ascertained every watch, where weather condition or traffics density makes it impractical, this fact should be noted in the deck log book or compass error book.
The error of the gyro should be determined by external observations-celestial bearing, transit etc, and the gyro and magnetic compass heading then compared to determine the magnetic compass error.
Where a gyro repeater is used to take a bearing an accurate comparison between the repeater and the master gyro should be made.
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7. VESSEL ISPECTION QUESTIONARY CHAPTER 4. NAVIGATION
4.12 Do the error being recorded in the compass error book broad by agree with the deviation card ?
Notes: The previous record completed by a certified compass adjusted should be obtained to prove that adjustment has not been required in the intervening period.
A comparison between the magnetic and gyro heading should be made at each substantial course alteration and once each watch.
Details must be recorded in the Deck log book.
Some administrations require compass error to recorded in the deck log book rather than a separate compass error book.
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8. 0406-4
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9. EQUIPMENT AND PUBLICATION
GYRO
MAGNETIC COMPASS
REPEATER GYRO
CRONOMETER
STOP WATCH
NAUTICAL ALMANAC
NORIE’S NAUTICAL TABLES
COMPASS ERROR BOOK
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10. ERROR GYRO COMPASS ON 02ND JANUARY 1978, POS DR: 03-21 N/126-30 E,
SUNRISE BEARING BY REPEATER GYRO : 113 DEG 5 MNT,
TIME O/B : & CRONOMETER :
MAGNETIC COURSES: 143 DEG AND GYRO: 145 DEG
VARIASI: 3 DEG W, DEFIND DEVIATION ?
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11. TERMINOLOGI WKPL : 06-05-00 PPW : 09-39-00
BDW : GMT : /1
GMT DUGA: / ZAWAL: ,5 S d = - 0.2
GHA @ : , kor d :
INCR : – 45, ZAWAL:22 – 58.4
GHA @ : ,6
Long E : 126 – 30,0 +
LHA @ :
P : E
A = BS =
B = V =
C = BM =
BP =
T = N 112 DEG 5 MNT D = ( DEVIATION MAGNETIC COMPASS )
BP = 113 – 5 + (145 – 143 ) = 113 – = 115 – 5
BM = 115 – 5
BP = 115 – 5 -
D = ( DEVIATION GYRO )
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12. COMPASS ERROR BOOK DATE : GMT : SHIP POSITION : LAT / LONG
SHIP AHEAD : GYRO – STANDARD – STEERING
BEARING : TRUE – GYRO – STANDARD
CELESTIAL BODY : SUN, START, MOON
ERROR : GYRO – STANDARD – STEERING
VARIATION : STATE IN BA CHART
DEVIATION : STANDARD – STEERING
HEEL
REMARK ( GYRO REPEATER IN USED )
OBSERVER
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13. FINNAL TEST 1. EXPLAIN TERMINOLOGY TO ASCERTAINED
GYRO ERROR AND MAGNETIC COMPASS
DEVIATION.
2. DESCRIBE EQUIPMENT AND PUBLICATION
TO MEASURE ABOVE ?
3. DESCRIBE CHECK LIST CHANGING OVER
THE WATCH ?
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