BillD
Admiral
- Joined
- Sep 1, 2011
- Posts
- 7,094
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- 2,675
- Boat Make
- 25 Terry Jason with Cummins 370 power
Much has been written and pictures posted on this forum about this topic.
Samhop posted his conversion project. Larry, Travis and others have posted.
In a couple of weeks the my glassing in of a FRP shaft tube replacing the bronze stern housing will begin.
The new shaft will be 1.75" and the tube will be 3" OD.
The deadwood on the 25 T Jason has a rectangular end with no taper.
4" wide by 6" tall.
My plan is to maintain the distance on the boat now of the prop to the rudder.
Her's 2 or 3 pics of present and planned.
Seems to me the 3" round shaft tube sticking past the deadwood is a good improvement to water flow versus the bronze stern housing.
I'm thinking of cutting or grinding the edges "tapering" the flat rectangular edges of the deadwood around the exposed tube. I figure there's only 1/2" on either side and an 1.5" top and bottom of the tube to taper. Or leaving it "as is" with the tube sticking out is an improvement in water flow over the bronxe housing.
The shaft size in pic #2 is 1.25"

Samhop posted his conversion project. Larry, Travis and others have posted.
In a couple of weeks the my glassing in of a FRP shaft tube replacing the bronze stern housing will begin.
The new shaft will be 1.75" and the tube will be 3" OD.
The deadwood on the 25 T Jason has a rectangular end with no taper.
4" wide by 6" tall.
My plan is to maintain the distance on the boat now of the prop to the rudder.
Her's 2 or 3 pics of present and planned.
Seems to me the 3" round shaft tube sticking past the deadwood is a good improvement to water flow versus the bronze stern housing.
I'm thinking of cutting or grinding the edges "tapering" the flat rectangular edges of the deadwood around the exposed tube. I figure there's only 1/2" on either side and an 1.5" top and bottom of the tube to taper. Or leaving it "as is" with the tube sticking out is an improvement in water flow over the bronxe housing.
The shaft size in pic #2 is 1.25"



