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Deck 2014: Navigation Problems

Question 531 of 992

On 8 February your 0800 zone time position is LAT 21°55'S, LONG 52°27'W.  Your vessel is on course 056°T at a speed of 17.5 knots.  An observation of the Sun's lower limb is made at 0938 zone time, and the observed altitude (Ho) is 46°06.5'.  The chronometer reads 12h 37m 23s, and the chronometer error is 1m 24s slow.  LAN occurs at 1243 zone time, and a meridian altitude of the Sun's lower limb  is made.  The observed altitude (Ho) for this sight is 83°56.1'.  Determine the vessel's 1200 zone time position.

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