Here is the 4th ‘Top Tip’ in our series for students studying both RYA Day Skipper theory and the RYA Coastal / Yachtmaster Theory course. Whether you are studying on-line, in the classroom or with a correspondence course at home these navigation tips are designed to help you complete and pass your Day Skipper or Yachtmaster theory course.
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Tip of the Day – Day Skipper and Yachtmaster Theory
SPRINGS OR NEAPS?
Today’s ‘Top Tip’ is all about working out whether the tide is Springs or Neaps.
This is important when working out tidal stream calculations.
The correct method is to subtract the height of low water from the height of high water to give the tidal range and then look at the tide curve for that port and look at the given ranges.
In this example High Water 6th April is 0527 (UT) height 4.4m
Low Water 6th April is 1200 (UT) height 2.0m
Subtract 2.0m from 4.4m to give the tidal range 2.4m
Look at the mean range box on the tide curve page and see whether the range falls into Neaps, Springs or mid range.
Do let us have your questions about this subject or any queries about Day Skipper or Yachtmaster theory. When we get enough we will devote a page to an ‘ask the expert’ session.