1436Re:Has anyone ever actually built Restless?
- Feb 16, 2007Then it sounds like Restless is a dead design. I don't see any modern 40hp inboards being
made. And I dont think you can mate a jetski motor to a ZF transmission
--- In AtkinBoats@yahoogroups.com, "Sal's Dad" <sals_dad@...> wrote:
> You estimate: 175hp at 400lbs
> So figure the whole boat, with engine gear and crew, might weigh 1200 lbs.
> Using Crouches formula for speed (from Gerr's Propeller handbook)
> Crouch's Constant (C) is approx 150 for average runabouts, cruisers...
> Knots = C * Sqrt(lbs/ShaftHP)
> Est top speed approx 55 knots, or better than 60 mph.
> There is NO WAY Restless is designed for this kind of speed. I think it would be really
dangerous; remember that when Atkin designed it, marine engines were MUCH heavier per
> I suspect he had in mind something like 40HP, about right for a fun, stylish, ship-shape
> Sal's Dad
> [Non-text portions of this message have been removed]
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