Navigation A — Coastal — question 8
- Give the characteristics of the Akko lighthouse. 2 white flashes every 7 seconds, height 16 m, range 10 miles.
- A vessel with a draught of 2.5 metres wants to keep a minimum safety margin of 0.2 m. Can she enter pontoon E in Herzliya Marina and stay there for 3 days? Give reasons for your answer. No. According to the figures for the two tidal states, at low water there will not be the required safety margin.
- Would the buoys at the northern entrance to Hadera harbour change if the area were in IALA-B? Give reasons for your answer. Yes. It would be the reverse system: entering the anchorage, the red marks would be on the vessel's starboard side and the green marks on her port side.
- The chart states that its scale is 1:300,000. If the scale were 1:30,000, which of the two charts would show more detail? Give reasons for your answer. The larger the scale, the more detail the chart shows, since it covers a smaller area. Therefore a chart at 1:30,000 will show more detail.
The question is solved on chart 1000. On the site it comes with the relevant sections of the chart.