A conversation with the wizard:
I sent PCB&F an email, and faxed him a copy:
Dear Phil and friends.
--------------------------------------------------------------
I'm collecting the parts and supplies need to build my Chebacco
Cruiser, the pilot house version designed by Susanne.
I have a question. I have in the corner of my shop collecting dust
about 5 feet of 1-1/8" solid aluminum rod, 6061-T6 I believe. Will
this work for the rudder post on the 20 ft Chebacco? The plans
show "2 inch SS". I'm assuming that this is tubing and not solid.
I'll be using plastic bushings, and aluminum fittings, to prevent
corrosion. The question, is 1-1/8" solid 6061-T6 strong enough?
A lot of good thoughts on the subject on the Bolger egroup, and it
was pointed out that my proposed rudder post was about 1/4" the
strength of a 2" SS tube. However, I suspect that a 2" SS tube is
quite a bit stronger than needed for the rudder post.
Any thoughts on the subject?
---------------------------------------------------------
The faxed reply:
Dear Mr. Spelling,
We don't use E-mail consistantly, and need a fax number or a
mailing address without digging in the files. (oops! - Ed)
As for the rudder stock, we would rather you stuck to what has
worked on other Chebaccos, amoung other reasons, because the small-
diameter stock presents a fairing problem to the skeg, which could
create unsteady steering.
Phil. Bolger
---------------------------------------------------------
So, what is everyone using for rudder posts on your boats with
inboard rudders? Oak? Steel? What diameter? Solid or tubing? Wall
thickness?
Bill, I know you used 1" solid steel stock on your Chebacco.
Any "unsteady steering"?
Dear Phil and friends.
--------------------------------------------------------------
I'm collecting the parts and supplies need to build my Chebacco
Cruiser, the pilot house version designed by Susanne.
I have a question. I have in the corner of my shop collecting dust
about 5 feet of 1-1/8" solid aluminum rod, 6061-T6 I believe. Will
this work for the rudder post on the 20 ft Chebacco? The plans
show "2 inch SS". I'm assuming that this is tubing and not solid.
I'll be using plastic bushings, and aluminum fittings, to prevent
corrosion. The question, is 1-1/8" solid 6061-T6 strong enough?
A lot of good thoughts on the subject on the Bolger egroup, and it
was pointed out that my proposed rudder post was about 1/4" the
strength of a 2" SS tube. However, I suspect that a 2" SS tube is
quite a bit stronger than needed for the rudder post.
Any thoughts on the subject?
---------------------------------------------------------
The faxed reply:
Dear Mr. Spelling,
We don't use E-mail consistantly, and need a fax number or a
mailing address without digging in the files. (oops! - Ed)
As for the rudder stock, we would rather you stuck to what has
worked on other Chebaccos, amoung other reasons, because the small-
diameter stock presents a fairing problem to the skeg, which could
create unsteady steering.
Phil. Bolger
---------------------------------------------------------
So, what is everyone using for rudder posts on your boats with
inboard rudders? Oak? Steel? What diameter? Solid or tubing? Wall
thickness?
Bill, I know you used 1" solid steel stock on your Chebacco.
Any "unsteady steering"?