PAPER J (FOR MAGNETIC CHART). 1. Find the compass course and distance from A to G. 2. Ship's head on the above compass course, give the ship's position when C bore by compass N 851° W. and B bore by compass N W. 3. Ship's head on the above compass course, C bore by compass S 831° W., ship then continued on the same course 15 miles, when C bore by compass S 271° W. Find the ship's position and the dis tance from C. 4. Find the course to steer in No. I question, in a current setting West (correct magnetic) 1.1 miles per hour, the ship making by log 6 miles per hour, and find the distance made good in 10 hours towards G. 5. On October 9th, 1884, op.m., being off Lerwick. took a cast of the lead, required the correction to be applied before comparing with soundings. PAPER K (FOR MAGNETIC CHART). 1. Find the compass course and distance from E. to L. 2. Ship’s head on the above compass course, give the ship's position when C bore by compass N 77° W., and T bore by compass S 631° W. 3. Ship’s head on the above compass course, A bore by compass N 68° W., ship then continued on the same course 8 miles, when A bore by compass N 4610 W. Find the ship's position, and the dis tance from A. 4. Find the course to steer in No, I question, in a current setting W.N.W. (correct magnectic) 2 miles per hour, the ship making by log 9 miles per hour, and find the distance made good in 4 hours to wards L. 5. On June 21st, 1884, at 5' 11" a.m., being off Dunge. ness, took a cast of the lead, required the correction to be applied before comparing with soundings. PAPER L (FOR MAGNETIC CHART). 1. Find the compass course and distance from H. to G. 2. Ship’s head on the above compass course, give the ship's position when A bore by compass S 28° E., and B bore by compass S 811° E. 3. Ship’s head on the above compass course, C bore by compass S.E., ship then continued on the same course 14 miles, when C bore Si E. by compass. Find the ship's position, and the distance from C. 4. Find the course to steer in No. I question, in a current setting North (correct magnetic) 2} miles per hour, the ship making by log 7} miles per hour, and find the distance made good in 4 hours towards G. 5. 5 On May 15th, 1884, at 11" 15" A.M., being off Shoreham, took a cast of the lead, required the correction to be applied before comparing with soundings. PAPER M (FOR MAGNETIC CHART). 1. Find the compass course and distance from K to G. 2. Ship’s head on the above compass course, give the ship's position when H bore by compass N 741° W. and P by compass S 631° W. 3. Ship's head on the above compass course, A bore by compass N 291° E., ship then continued on the same course 27} miles, when A bore by compass S'60° E. Find the ship's position and the dis tance from A. 4. Find the course to steer in No. I question, in a cur rent setting N.W. I N. (correct magnetic) 3.3 miles per hour, the ship making by log 11 miles per hour, and find the distance made good in 5 hours towards G. 5. On August 14th, 1884, at 8h 33" P.M., being off Grimsby, took a cast of the lead, required the correction to be applied before comparing with soundings. PAPER I. (Second Mate as far as Longitude by Chronometer.) Multiply 1957 by 600 by common logarithms. Divide 27850 by .2785 by common logarithms. 1885. April 16th, in long. 14° 20' W.; the observed meridian altitude of the sun's lower limb was 45° 3' 15" bearing S., index error 2' 10" to add ; height of eye 21 feet. Required the Latitude. In lat. 44° 16' N., the departure made good was 183 miles. Required the Difference of Longitude by Parallel Sailing. Required the Course and Distance from A to B on Mercator's principle. Lat. of A 52° 10' N. Long. of A 16° 13' W. PAPER 1.-Continued. 1884. March ist. Find the time of High Water at Ballycastle Bay, A.M. and P.M. 1885. March 19th, at 6h OM P.M., apparent time at ship in lat. 24° 5' N.; long. 27° 30' W.; the sun's observed altitude was W.N.W. Required the True Amplitude and Error of the Compass; and supposing the variation to be 27° 17' W., required the Deviation of the Compass for the position of ship's head at the time of observation. 1885. July 1st, A.M., at ship in lat. 30° 20' N.; the observed altitude of the sun's lower limb was 50° 18' 0"; height of eye 14 feet. Time by a chronometer July 1° 2" 16" 30°; which was 17" 20% fast for mean noon at Greenwich on January 13th, and gaining 318 daily. Required the Longitude. ADDITIONAL FOR ONLY AND FIRST MATES. 1885. September 23rd, P.M., Mean Time at Greenwich 22° 166" 20$ in lat. 40° N.; long. 162° 10' E.; the sun's bearing by compass W. į S.; observed altitude of the sun's lower limb 32° 8' 20"; height of eye 20 feet. Required the true Azimuth and Error of the Compass; and supposing the variation to be 20° o' W., required the Deviation of the Compass for the position of the ship's head at the time of the observation. 1885. July 1st, A.M. at ship, lat. by account 50° 13' N.; long. 35° W.; the observed altitude of the sun's lower limb 62° 20' 30" South of the observer; height of eye 15 feet. Time by Chronometer 14 2" 2. 52, which was ITM 26fast on Mean Time at Greenwich. Required the Latitude by the Reduction to the Meridian. ADDITIONAL FOR MASTER. 1885. February 15th. The observed meridian altitude of the star “ Aldebaran” bearing South, was 50° 20' 30" ; height of the eye 20 feet. Required the Latitude. PAPER I. -Continued. Find the Index Error and Sun's Semidiameter from the following readings of the Sextant: 31' 20" on and 32' 10" off. NAPIER'S DIAGRAM. ADDITIONAL FOR MASTER. In the following Table give the correct magnetic bearing of the distant object, and thence the deviation. CORRECT MAGNETIC BEARING: Ship’s Head Bearing of Distant Devia- || Ship's Head Bearing of Distant by Standard Object by Standard tion re. by Standard Object by Standard Compass. Compass. quired. Compass. Compass. Devia. tion required. With the deviation as above, give the courses you would steer by the standard compass to make the following courses, correct magnetic. Correct magnetic courses, N N E., South, E I N. Compass courses Suppose you have steered the following courses by the standard compass, find the correct magnetic courses made from the above deviation table. Compass courses S W 1 W., WNW., North. Magnetic courses You have taken the following bearings of two distant obejcts by your standard compass as above; with the ship's head at N.E., find the bearings, correct magnetic. Compass bearings N & E., West. |