Re: [bolger] martha jane's new rudder confusion
I would read that as:
The forward edge of the rudder from the top of the rudder to the bottom edge
of the transom should be round on a 1 inch radius (to give proper clearance
for turning the rudder). From the bottom of the transom to the bottom of the
rudder, parabolic section with a 1/2" radius on the leading edge. Rear to
be left square - top to bottom.
Paul W. Esterle
Capt'n Pauley Video Productions
423.989.3159
S/V Bryn Awel, Columbia 10.7
Bristol, Tenn. USA
http://www.captnpauley.bigstep.com
http://pages.preferred.com/~pesterle/
The forward edge of the rudder from the top of the rudder to the bottom edge
of the transom should be round on a 1 inch radius (to give proper clearance
for turning the rudder). From the bottom of the transom to the bottom of the
rudder, parabolic section with a 1/2" radius on the leading edge. Rear to
be left square - top to bottom.
Paul W. Esterle
Capt'n Pauley Video Productions
423.989.3159
S/V Bryn Awel, Columbia 10.7
Bristol, Tenn. USA
http://www.captnpauley.bigstep.com
http://pages.preferred.com/~pesterle/
----- Original Message -----
From: <hwal@...>
To: <bolger@egroups.com>
Sent: Sunday, August 06, 2000 9:36 PM
Subject: [bolger] martha jane's new rudder confusion
> Here is a question - which I suspect none of you can answer - but I
thought
> I'd try. I'm wondering if it represents a typo. I'm working on the new
> rudders for the revised Martha Jane - the rudder is a balanced rudder
two
> of them actually) and the construction notes describe the shaping of the
> rudder thusly:
>
> "Rudder blades built up to 2 inches thick, to the diagram at the top right
of
> sheet 2. The underwater trailing edge can be left square. The edge next to
> the transom is rounded on a 1-inch radius. The underwater leading edge
should
> be faired and rounded off in a parabolic section ending in a 1/2-inch
radius."
>
> Maybe it's me - but the wording here seems confusing.
>
> 1) I wonder if "the underwater trailing edge can be left square" was
meant
> to read - the above water trailing edge can be left square.
> and
> 2) "The underwater leading edge should be faired and rounded off in a
> parabolic section ending in a 1/2-inch radius." I think he's saying here
> that the parabolic section refers to the entire underwater portion of the
> rudder - and that the leading edge is rounded off and the trailing edge
> finally is planed down to a 1/2 inch radius (remember the entire piece
starts
> out 2" thick).
>
> Do you see why I suspect an error in the text? Or am I missing something?
>
> Steve Anderson ( Martha Jane Landroval)
>
>
>
> Bolger rules!!!
> - no cursing
> - stay on topic
> - use punctuation
> - add your comments at the TOP and SIGN your posts
> - add some content: send "thanks!" and "ditto!" posts off-list.
>