EXERCISE-15

  1. On 12th Sept 1992, AM at ship in DR 000 30’S 1600 20’W, the sextant altitude of the star ALDEBARAN near the meridian was 7305’ at 03h 59m 29s chron time (error 05m 03s fast). If IE was 1.2’ on the arc and HE was 9m, find the direction of the PL and a position through which it passes.
Solution –1Aaaaa 1B 1C
  1. On 2nd May 1992’ PM at ship in DR 440 11’S 1020 40’E, the sextant attitude of the star POLLUX near the meridian was 1706’ at 10h 52m 08s chron time (error 02m 12s slow). If IE was 3.6’ off the arc and HE was 12m, find the direction of the PL and the latitude where it cuts the DR longitude.
Solution –2A 2B 2C
  1. On 20th Jan 1992, during morning twilight in DR 440 07’N 640 47’E, the sextant altitude of the star ARCTURUS near the meridian was 6408’ at 02h 04m 54s by chron (error 10m 58s slow). IE 3.1’ 0ff the arc; HE 18m. Find the direction of the PL and a position through which to draw it.
Solution –3A 3B 3C
  1. On 5th March 1992, at about 1835 hours at ship in DR 660 40’N 860 50’W, the sextant altitude of the star BETELGEUSE near the meridian was 3002’ when chron (error 18m 04s fast) showed 00h 40m 30s. If IE was 0.7’ off the arc and HE was 14m, find the direction of the PL and a position through which it passes.
              Solution –4A 4B 4C
  1. On 21st Sept 1992, AM at ship in DR 200 50’S 620 30’E, the observed altitude of the star CAPELLA near the meridian was 2301’ at 01h 15m 06s chron time. If chron error was 00m 04s slow and HE was 10m, find the direction of the PL and the lat where it cuts the DR long.
Solution –5A 5B 5C
 manish-mayank

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From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses)