So what happened with SageCat’s mast?
In Monterey when SageCat’s mast came down Jerry Montgomery believed that the rotation knuckle on top of the tabernacle post failed. At the time this could not be confirmed as the knuckle had been driven down into the tabernacle post and could not be inspected.
Upon return to Golden, Colorado, we removed the tabernacle post from SAGECAT and found that the leading edges of the knuckle’s plate had failed.
What cannot be confirmed is if the plate failed and then broke through the tabernacle post, or the post failed and this resulted in the knuckle’s plate failing as the mast fell.
This broken rotation knuckle is from a Montgomery Panther. The Panther is a 17′ raceboat Jerry built for a few years in the 1980s. The post is, or was, an aluminum casting. Yes, the prototype part was made 30+ years ago.
We have made a new, stronger, tabernacle post and machined a new, stronger, knuckle.
These new components have been installed on ASOLARE, the Sage 15 sloop, for testing.
Dave did sail the catboat rigged ASOLARE the 6th of August … and again on Chatfield Reservoir on 12 August … but only light winds were blowing on each lake. We continue to wait for strong wind, 15+ knots, to confirm the serviceability of the new setup.
So there you have it, prototype boat testing means there will be failures and things needing improvement. Sage Marine tests boats hard. We, meaning Sage Marine, do this in order to assure owners the craft is safe and seaworthy in real world conditions.