Yeah, those are precisely the two characters I was talking about. Nothing cheap about it. If they'd spent the money they did spend (and where did two students get it) on a proper boat, they could have sailed to the arctic in a 45', not pumped out diesel fumes all the way.
But back in the real world, any difference (If any) is immeasurable. Best to stick to normal understanding of water and navigation!
The Rhine at Bingen has a visible slope to it. It's great fun comparing the speed past you of barges going north and south.
There's always the Falls of Lora if you want a visible slope. And they are navigable (just!)
On my list! Looks like fun.
Because the thread was over after the first reply.
I think I'll stick to admiring them from Connel Bridge! The nearest I've been to them by water is Dunstaffnage marina.
Just around the corner is also Ballachulish. Up to 12' if the winds blowing up the loch, and about 7 knots from memory. Rewarding once you are in.
Yes. And I well remember doing just that under the severn bridge where the tide can run at 7kn. Under full sail at 5 kn I went backwards.
Been there, done that! It's a one-way passage, and the bridge makes it feel scary! You know that moment when despite all your checks, it doesn't look like your mast will go under the bridge? At Ballachulish, that happens at a point where you can't turn back... And when I did it, as we were approaching we saw some scaffolding hanging below the bridge deck?
Also looking out from Longy bay on Alderney. I remember seeing three yachts late on the tide spending all morning trying to get to Braye.
Ballachulish isn't the only spot on Loch Leven with a strong tide. The narrows at Caolasnacan are pretty fierce, too. We camped at the caravan site there once, and had a Metzler Inca dinghy with a Seagull outboard. Great fun for my brother and I as teenage boys! But once my Dad and my brother went down through the narrows and discovered they could only make about half a knot against the tide coming back.