Having recently completed my RYA YM / CS theory which included tidal stream calcs with computation of rates for periods between springs and neaps.........I've just realised that my recently acquired Reeds Channel Almanac does not (seem to) include a computation of rates chart.
Have I been short changed by REEDS or are the RYA teaching things that don't get used in the real world?
I could of course be being a complete numpty (highly likely) and just haven't found the right page yet