[MHml] Article on Voith-ish HBD from SPW
Gary and Jane Pearce
gary at thepearces.com
Thu Apr 27 08:39:37 EST 2006
On Thursday 27 April 2006 04:32, Claus-C. Plaass wrote:
> One huge difference between the HBD for pleasure boat use
> and the commercial VOITH for heavy-duty tugboats etc.
> is not only its size, but the missing linkage between blades.
> Which is what makes the VOITH so efficient (but not unique)
So are we saying this thing was not terribly efficient Chris ?
My guess is this would dampen Mr Siemens' interest as increased efficiency is
one of the big selling points of diesel electric.
Personally I can see that a vectored thrust unit (or units) that was
retractable and removable without slipping would be especially attractive for
I have never been a fan of a saildrive's reliance on a large rubber membrane
and the leg and prop are always there causing drag.
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