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Yes I have a selection of them around the back of the house. The best one has gone to provincial cowboy but I still have 2 blades there but no case. Welcome to come and have a look sometime if you want Greg.

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Hi Greg,

 

I have the drawings for the profile on my Tennant Wildfire (next gen GBE) if you want them.  I don't think that profile is anything special.  I have blown up two rudders and a casing in 12 months!

 

At the advice of many here, when I rebuilt the parts, I wrapped in a LOT more layers of heavy uni in all the directions where I think the forces were concentrated.   This seems to have resolved the failures, and have run cleanly for 20 daysails (albeit mostly in light air....)

 

I do believe the general design works well at low to medium speed, but becomes unstable over 17 knots of boat speed.  It sounds like a great opportunity for you to explore some more modern profiles!

 

JF0OYDk.jpg

 

d5WieI1.jpg

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