Vai al contenuto
Top Sail
Course to steer in a tidal stream

Course to steer with leeway

Exercise book 3.2 · on paper you need RYA chart 3, the tidal almanac, the deviation card

On 1 May at 1845 SPDST you leave 45°59.85'N 005°56.66'W for 45°59.01'N 006°07.65'W. The boat makes 6.0 knots, the wind is southerly with 5° of leeway and variation is 6°W. Use tidal diamond J. What compass course should you steer, and how long will it take?

Starting position
45°59.85'N 005°56.66'W
Destination
45°59.01'N 006°07.65'W
Boat speed
6.0 kn
Leeway
5°, wind S
Variation
6°W
Victoria 1 May (UT)
HW 1315 5.2 m; LW 0656 0.8 m, 1920 1.2 m
Diamond J, HW+4
293° 2.9 kn springs / 1.5 kn neaps

Solution worked out by us from the course material: to be checked by the instructor.