KRP Final and Initial course angle of a great circle course between two geographical positions DRAW POLE IFIF N > S ; DRAW NORTH POLEIF S > N ; DRAW SOUTH POLEIF BOTH N ; DRAW NORTH POLEIF BOTH S ; DRAW SOUTH POLE IF ICA AND FCA SAME QUADRANTS VERTEX LIES OUTSIDE A AND BAND … Read more
List of IMO Code
Parallel Sailing Find the distance travelled by a ship on a course of 090° T at latitude 45° N. If its longitude changed by 20°. If latitude was 60° N, find the distance. 20° = 20 * 60 = 1200′ of arc For 45° N: dep = dlong * cos lat = 1200 * cos … Read more
Trim or Longitudinal Stability A ship is floating in salt water at drafts of 6.7 m F and 7.3 m A. MCT 1 cm 250 tonnes m. TPC 10 tonnes. The length of the ship is 120 meters. The center of flotation is amidships; 220 tonnes of cargo is then discharged from a position 24 … Read more
Navigation Formula True course = 260 degree. So, course is SW 80 Degree (S 80 W). Sinco = (Dep / Dist)Cosco = (dlat / Dist)Tanco = (Dep / dlat)Dep = (dlong * Cos m’lat) Find out dlat in degree. How?We know, Cosco = (dlat / Dist)So, dlat = Dist * Cosco (Suppose our dist is … Read more
