Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

584 MOLESWORTH S POCKET-BOOK Table of Knots and Statute Miles. (Calculated by Lewis Olrick.) The circumference of the earth is divided into 360 degrees, each degree containing 60 knots or nautical iriiles, consequently the circumference of the earth, viz-. 131,385,456 feet divided by (360 X 60 =) 21,600 gives the length of a knot, viz. 6082-66 feet, which is generally considered the standard, except by the Admiralty. 1 knot — 6082'66 feet; 1 statute mile = 5280 feet. . 1 degree = 60 knots =c 69'121 miles. Knots. | Miles. । Knots. | Miles. I Knots. Miles. Knots. Miles. 1 1-152 1 8-064 13 14-976 19 21-888 1-25 1’440 7-25 8'352 13-25 15'264 19-25 22’176 1-50 1-728 7-50 8-640 13-50 15'552 I 19-50 22-464 1-75 2-016 1-15 8'928 13-75 15’840 19-75 22-752 2 2*304 8 9-216 14 16-128' 20 23-040 2’25 2'592 8-25 9-504 14-25 16'416 1 20-25 23-328 2-50 2-880 8-50 9-792 14-50 16’704 20-50 23'616 2'75 3-168 8-75 10'080 14-75 16'992 20-75 23-904 3 3'456 9 10-368 15 17'280 21 24'192 3-25 3-744 9-25 10-656 15-25 17-568 21-25 24-480 3’50 4*032 9-50 10-944 15-50 17-856 21-50 24-768 3’75 4-320 9-75 11-232 15’75 18-144 21-75 25-056 4 4-608 10 11*520 I 16 18-432 22 25*344 4*25 4*896 10'25 11-808 16’25 18-720 22’25 25-632 4-50 5-184 10-50 12-096 16-50 19-008 22’50 25’920 4-75 5-472 10-75 12-384 16’15 19-296 22’75 26-208 5 5-760 11 12-672 17 19’584 23 26’496 5-25 6’048 11’25 12-960 17-25 19-872 23-25 26-784 5-50 6’336 11’50 13-248 17'50 20-160 23’50 27-072 5-75 6'624 11’76 13*536 17-75 20’448 23'75 27-360 6 6’912 12 13-824 18 20'736 24 27'648 6-25 7-200 12-25 14-112 18'25 21-024 24’25 27-936 6-50 W88 12-50 14-400 18-50 21-312 24’50 28’224 6’75 1-116 H2-75 14'688 18-75 21-600 24-75 28-512 I25 28’800