Any thoughts on the stress levels on the locking pin on the Adams yachts?.
with up to 4t lead ballast hanging 2m down with a locking pin has me thinking they may be a weakness .
are we talking similar to a trailer yacht ?
any thoughts thanks.
I've got no figures to back this up, but for me the pin is taking load when the keel/bulb is vertical, therefore a pretty static load.
When heeled most of the load is taken by the bottom leeward side of the case and the upper windward side of the case? Not sure if the pin is taking extra load in this scenario, but let's assign it 50% extra load for general jiggling around.
No idea what the shear load on the pin is but it can't be too hard to get a shear load and safety factor from the pin diameter and what it's made from?
If it has hydraulics, it doesn't need a pin to hold the keel up/down. So think of it like a safety feature rather than load bearing, at least until the hydraulics fail!
Which Adams are you referring to?
For some reason it wont allow me to post the YouTube link ,
its Captain Scarlegs episode 18 near the end of the video he shows the keel , he also has another where he had to wait 12 months to find and fix the pin .
i like the Adams 13 but i think fixed ballast in a stub keel with a centre board would be more my thing.
