Boat porn

Portofino said:
Same speed more or less - one bounces other rides .
https://m.youtube.com/watch?v=BUwr7nEUMyg

https://m.youtube.com/watch?v=7LfWrkTb3Go
Click to expand...
Porto, that's bound to be the weirdest comparison ever posted.
A 60 vs. a 38 footer, to start with.
And sea conditions, even if always extremely hard to evaluate in a video, seem substantially different to me.
Last but not least, more or less same speed...?!?
Yeah, if you mean that they are both measurable with just 2 digits. :D
My educated guess is 35 vs. 50, and if I should bet whether the difference is more or less than 15kts, I'd rather say more.
 
MapisM said:
Porto, that's bound to be the weirdest comparison ever posted.
A 60 vs. a 38 footer, to start with.
And sea conditions, even if always extremely hard to evaluate in a video, seem substantially different to me.
Last but not least, more or less same speed...?!?
Yeah, if you mean that they are both measurable with just 2 digits. :D
My educated guess is 35 vs. 50, and if I should bet whether the difference is more or less than 15kts, I'd rather say more.
Click to expand...

Illustrates the ride behaviour of the two types of hull form .
Ok not exact comparison but one can extrapolate up / down / across to see the point
One crushes the waves due to a optimum aspect ratio for planing boats , high load , high planing forces , wider beam .
Flatter ride - lower speed only a function of its relative .Hp

Other narrow beam , low aspect ratio , low weight , lower lift / load , lower planing force , —— bounces and bumps its way along —— albeit agreed faster ,but will always be a poorer ride at the same speed as the other .
Infact any planing speed in a “ big “ sea .
Agree the “ big “ bit is relative to size .

Where you said the narrow thin hulls the ride will be better , it can,t be at any other than a fiat calm sea .
That’s where we differ ,sorry P
See my post #20
 
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