Quote:
Originally Posted by mikea
Talking about square holes and round pegs, there are clearly some pretty switched on people attracted to this forum (need to watch myself...it might be contagious!) Anyhow, I have a slight conundrum you may be able to help with, being: -
My boat (a 30' motor Cruiser) is laying at berth in my local harbour (sorry Harbor) moored upon a bow swing berth. On the stern I have a dive / boarding ladder of which the bottom rung at low tide is just touching the surface of the water.
Now the problem is that the normal tide rises at 9" per hour for 4 hours then drops back again and the dive ladder rungs are 7.5" apart and there are only 8 of them to the top of the stern fixing. However in a spring tide, the water level rises at 13" per hour before dropping back and I need to calculate how many rungs will be covered in this spring tide in comparison to a normal tide...
Any takers?
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Reminds me of if a plane crashed on the border between Canada and the US, where would they bury the survivors? The bottom rung of course will be at the same level regardless of the tide, without taking into consideration wave action
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