No need to mock boyo. It makes you look an even bigger tw@.but he wont say how.
I'd imagine that if the tidal current AND the wind are in the same direction, and you are in poorly powered vessel, it makes the route across The Channel a vey difficult one to navigate by eye. I'd hazard a guess that in an overloaded boat and a weak engine, most of the effort would be fighting the sideways movement,
Hence...
I'd also hazard a guess that a skilled sailor would navigate it easier with a sail only powered vessel.Depends what other conditions they are combined with.
Tidal currents can be favourable or unfavourable so yes, it can make a difference.
Hence - tidal currents can affect crossings - especially when they are combined with other factors.
