[MHml] Knots v Kilometres

[Rob Denney]

G'day,

Rudders mounted in dagger cases on the hulls cannot turn all the way
round.  180 plus 30 each way is more than enough for steering and
allows enough structure to hold them together, although it does mean
the rudders have to be disconnected for shunting.

The next generation are mounted on the beams and can be lifted without
a dagger case so can rotate 360 degrees, which makes shunting a whole
lot easier.


regards,

Rob


On Dec 28, 2007 6:42 PM, Roy Mills <rsirfj at shaw.ca> wrote:
>
>
> ----- Original Message -----
> From: CarloBackhausen at aol.com
> To: multihulls at steamradio.com
> Sent: Friday, December 28, 2007 10:24 AM
> Subject: Re: [MHml] Knots v Kilometres
>
> That was a nice explanation, Mr. Mill, thank you !
> What do you think, was that mentioned 150 ° angle
> a typo,
>
>         I think it was a typo because when I first read it I immediately
> thought it should be 180 and wondered how someone could hit the 5 key
> instead of the 8. The next emails I thought corrected that, but why 250 I
> thought puzzling, until it dawned on me that although the proa shunts
> through 180, the rudders need to be able to turn perhaps 30 degrees either
> side of straight ahead, so there you are, 240/250. No doubt Rob will correct
> me if I am wrong.
>
>             Roy
>
>  and if, doesn't it deserve a correction than ?
> Yours,
> Carlo Backhausen
>
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