way. REMARKS on Board, Friday, May 2d. At 2 P. M. hove short. At 4 weighed and failed in Co. with a 40 At 6 S. Foreland bore N.N.W. dift. 4 M. At 12 Bembridge P. boreW.N.W. 27M. Being upon the Coast this last Day, the Log is hove, and the Bearings and Distances of Lands, Rocks, Sands, &c. as you approach them must always be fet down, and are of the greatest Confequence, especially in bad Weather, or when you are in Danger of being drove out of your true Courfe, in the Night, or in a Fog; fo that you may at any Time determine, by your Reckoning, or the Chart, the Ship's Place, and fail Courfes and Distances as Circumstances require, in order to pass Places of Danger, and to have it always in your Power to take your Departure from fome known Place, in Cafe you fhould be drove out to Sea in the Night or in foggy Weather, when no Land can be feen. For it fometimes happens, that in working to Windward in the English Channel, E. of Dunnofe, Ships, by making too long a Board, have got upon a Sand called the Ower, which lies from Dunnofe E. & N. 25 Miles. It is therefore abfolutely neceffary to have good Draughts of the Coafts you fail upon, unless you are well acquainted with them indeed. Lee H. K. F. Courses. Winds. way. REMARKS on Board, Sunday, May 11th, 179r. Lat. by Bearing and 6° 28′ W. Uthant N. 80 30 E. 54 M. The Lizard bearing N. by E. & E. Dift. 6 Leagues from the Ship is the fame as if the Ship had failed from the Lizard 6 Leagues or 18 Miles upon the oppofite, or S. by W. W. Point of the Compass, and allowing for the Variation, as before taught, makes it S. half E. Dist, 18 M. which is to be set down as the first Course and Distance in the following Traverse Table. The first Course steered by Compass is S. W. by W. W. which, allowing for the Variation, makes S. W. by S. half W. and the Sum of all the Distances failed on that Course till twe o' Clock, when it alters, is 18 Miles and an half, which being doubled, because the Log is heaved every two Hours, gives 37 Miles; fo the fecond Courfe and Dift. to be fet down in the Traverfe Table is S. W. by S. half W. 37 Miles. In like Manner the second Course fteered is S. W. W. and the Variation allowed makes it S. S. W. half W. and the Dift. on that Course fummed up and doubled, gives 56 Miles; therefore the third Courfe and Dift. to be fet down in the Traverse Table is S. S. W. half W. 56 Miles. Having found the whole Difference of Latitude and Departure made upon the several Courses, I then mark down upon my Slate or Paper what every Thing that is to be found comes to, and afterwards fet them down in their proper Columns as above. 195.9 49.9 Com. of Middle Lat. I 36 S. 48 21 N. 98 18 49 09 40 51 Then with this Com. of Mid. Lat. 40° 54's er 41° found as a Courfe among the Degrees, and the Dep. 48.1 in its Column, in the Difst, 48.1 Col. ftands 74, which is the Diff. of Long. Or, with the Course 26 30 and Meridional Diff. of Lat. 147, the Diff. of Long, is found to be nearly 74 by Mercator's Sailing. With the Mer. Diff. Lat. and Diff. Long. Ufhant is found to bear N. 80° 26'E. and with that Bearing, taken as a Course, and the proper Difference of Latitude, the Distance is found Lee Winds. way. REMARKS on Board, Monday, May 12th, 1791. N. 5 5 N. W. 6 S. W. W. Thefe 24 Hours moderate Gales and Cloudy At 4 P. M. Spoke the Charming Nancy, from S.WbyS&W W. N.W. Obf. |1° 41′W. | 10 JC.OrtegalS2°26′E 19′ W. 7° 47′ W. Distance 183 M. The Variation being allowed on each Courfe, and the Distances fummed up, as before taught, the Traverse Table will stand thus: · This Day's Departure being added to the Mer. Distance Yesterday, gives 1° 41′ the Mer. Distance to Day, With the Meridional Difference of Latitude and Difference of Longitude, the direct Course to Cape Ortegal is S, 2o 26′ E, and with that Course and the proper Difference of Latitude, the Distance is 183 Miles. NOTE. As the Table of Difference of Latitude and Departure are only calculated to single Degrees, the nearest Degree to the Com. of Middle Latitude is to be taken in working by Infpection to find the Difference of Longitude by, which is near enough for all common Purpofes at Sea: thus the Comp. of Mid. Latitude is 429 26′, for which I take 420 to find the Difference of Longitude. The fame may be obferved in finding the Courfe made good, the nearest Degree or Degree to the Courfe is always fet down, and will be found fufficiently exact. Lee Winds. way. REMARKS on Board, Tuesday, May 13th, 1791. S8°30'W 97 96 |1445.1245.231° 531 By allowing for Variation and Leeway the Work will be as follows: With the Diff. of Lat. and Dep. the Courfe is found S. 80 30/W. and the Distance 97 Miles. Long. Long. in. Bearings and Distance. 00 21 8.or C. Ortegal S. 10° 21′ E. TRAVERSE TABLE. Diff. Lat, 1° 36'S. 46 48 N. Mer. Parts. Here the Latitude by Obfervation differing from the Latitude by Account, I correct for the true Longitude; and as this is the first Obfervation got fince leaving the Land, I correct by Cafe I. as follows: 49° 57'N. Mer. Parts 3470| Lizard's Lat. Lat. by D. R. Longitude in With the Courfe 22° 23' or 2 Points, the proMer. Parts 3470 per Diff. of Lat. 274 Miles, the true Mer. Dift. Mer, Parts 3063 is found 113 Miles. With the Mer. Diff. of Lat. and Diff. of Long. the direct Courfe to Cape Ortegal is found S. Lee H. K. F. Courses. Winds. Way REMARKS On Board, Wednesday, May 14th, 1791. Thefe 24 Hours modorate Gales and clear Weather. 3333wwww 5 S.byW.W. Weft 555 3 3 IO 3 5 2 3 S. by W. W S. At 8 P. M. fet up the Mizen Top-Maft Shrouds and Back-Stays. Courfe. Dift. Lat. Dep. D. R. Obf. Mer.Dift. 90 E. 76 1758.128.14 12E.44.08 1.41 17 E. This Day's Departure being fubtracted from the Meridional Distance of Yesterday, gives 1o 41′′. the Meridional Diftance of To-day. With the Mer. Difference of Latitude and Difference of Longitude Cape Ortegal is found to bear S. 14° 28' E. and with that Bearing taken as a Courfe, and the proper Difference of Latitude, the Distance is found 23 Miles. NOTE. When the Tenths on any Side are more than 5, or half a Mile, you must call that Side one more than you found it to be; but when they are lefs than 5, then you need take no Notice of them; as in the above the Difference of Latitude and Departure are 74.9 and 11.8,. which I call 75 and 12, because the Tenths are above 5. But when you take the Difference of Latitude and Departure to find the Course by, then take them in Miles and Tenths; the fame may be obferved in cafting up the Knots and Fathoms. If, when doubled, the Tenths are more than 5, fet one Mile more in the Traverfe Table; but if less, omit them, as there are no Tenths in the Distance Column. I |