RE: [bolger] Centerbord pivot (and rudder stock)
Fraser Howell used aluminum for his rudder and centreboard -- you might ask
him for details.
Myself, I used a 1/2 inch bronze pin in the plywood board, fitting into 1/2
inch inside diameter bronze bushings, cut from a bit of bronze pipe. I put
a bushing into the centreboard as well as in the case sides.
For my rudder post, the retired machinist who made it up for me used 1 1/4
inch s/s pipe, just because he had it on hand.
The boat lives on its trailer, I've been using it for over a year with no
problems so far.
Jamie Orr
-----Original Message-----
From:richard@...[mailto:richard@...]
Sent: August 20, 2001 7:13 AM
To:bolger@yahoogroups.com
Subject: [bolger] Centerbord pivot
I'm getting ready to cut and build the centerboard and case for the
Chebacco Cruiser.
The plans leave a lot to the imagination. Anybody have any pictures
or drawings of the pivot mechanism on their centerboard boat?
Also, I'm toying with making the pivot out of 1 1/8" solid aluminum
rod, with aluminum bearing surfaces. Any of you engineer types want
to comment? Not strong enough? To soft? I figure, most of the side
forces will be taken by case, and it will probably only pivot a
couple of thousand times in the lifetime of the boat, so wear is not
really a problem....
Anyone? Gregg?
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- pls take "personals" off-list, stay on topic, and punctuate
- add your comments at the TOP and SIGN your posts, snip all you like
- To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA,
01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/
him for details.
Myself, I used a 1/2 inch bronze pin in the plywood board, fitting into 1/2
inch inside diameter bronze bushings, cut from a bit of bronze pipe. I put
a bushing into the centreboard as well as in the case sides.
For my rudder post, the retired machinist who made it up for me used 1 1/4
inch s/s pipe, just because he had it on hand.
The boat lives on its trailer, I've been using it for over a year with no
problems so far.
Jamie Orr
-----Original Message-----
From:richard@...[mailto:richard@...]
Sent: August 20, 2001 7:13 AM
To:bolger@yahoogroups.com
Subject: [bolger] Centerbord pivot
I'm getting ready to cut and build the centerboard and case for the
Chebacco Cruiser.
The plans leave a lot to the imagination. Anybody have any pictures
or drawings of the pivot mechanism on their centerboard boat?
Also, I'm toying with making the pivot out of 1 1/8" solid aluminum
rod, with aluminum bearing surfaces. Any of you engineer types want
to comment? Not strong enough? To soft? I figure, most of the side
forces will be taken by case, and it will probably only pivot a
couple of thousand times in the lifetime of the boat, so wear is not
really a problem....
Anyone? Gregg?
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- pls take "personals" off-list, stay on topic, and punctuate
- add your comments at the TOP and SIGN your posts, snip all you like
- To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA,
01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/