Lesson 1
What a large vessel cannot do
How big large vessels are, why they cannot quickly move aside or stop, the swept path in a bend, draught and tacking sailing vessels.
9 steps · 6 questionsKVB1 complete
Klein Vaarbewijs 1 (small craft licence 1) · Chapter 5
Large vessels, suction and blind spots
What a large vessel cannot do, where the skipper cannot see you, and what suction and waves do to your boat.
5 lessons30 questions
About this chapter
On rivers and canals you share the water with large vessels: motor cargo vessels, pushed convoys and tows. They are much longer than your boat, they cannot quickly move aside or stop, and the skipper cannot see a stretch of water ahead of the bow. Next to a large vessel the water level drops and you can be pulled towards the vessel, and every vessel under way makes waves.
In lesson 1 you learn what a large vessel cannot do: how big they are, why they cannot quickly move aside, how much width they take up in a bend, and what draught and tacking mean. After that come the blind spot, suction and wake current, bow and stern waves and wash, and how to meet and overtake a large vessel in practice.
Lessons
Get your licence with KVB1 complete.
With KVB1 complete you open every lesson and test.
Continue with lesson 1 · €10- Lesson 2
The blind spot
Where the skipper of a large vessel cannot see you and why, what the law says about the view, the pushed convoy, and what you do.
9 steps · 6 questionsKVB1 complete - Lesson 3
Suction and wake current
What suction does to your boat beside a large vessel and close along the bank, two small boats side by side, the wake current and being carried in a wake.
10 steps · 6 questionsKVB1 complete - Lesson 4
Bow wave, stern wave and wash
The waves of a large vessel, your own stern wave and hull speed, damage to boats and banks, the rule against harmful wash and what you do.
9 steps · 6 questionsKVB1 complete - Lesson 5
Meeting and overtaking in practice
What you do when a large vessel overtakes you or comes towards you, the blue board in a bend, overtaking a large vessel yourself, crossing behind the stern and how much room you keep.
10 steps · 6 questionsKVB1 complete
Test
Chapter test
12 questions from all 5 lessons. You answer everything first and then see your result, with an explanation for each question.