meSkipper

Navigation A — Coastal — question 2

  1. Your vessel's draught is 2.3 metres. You are moored at pontoon N in Herzliya Marina. You want to move to pontoon B, keeping at least 15 cm of water under the boat. The tide is at MHWN. Can you carry out the manoeuvre as required? Give reasons for your answer. A yes/no answer will not be accepted. Draught + safety margin = 2.45 m; total depth 2.8 m, so you can move.
  2. Explain the characteristics of the Har Karmel lighthouse (Stella Maris). One white flash every 5 seconds, height 179 m, range 30 miles.
  3. At what range will the Har Karmel lighthouse rise above the horizon, in daylight and good visibility, for an observer whose height of eye is 4 metres above the water? 32.2 miles.

The question is solved on chart 1000. On the site it comes with the relevant sections of the chart.