lock-down plates ready for a test fit....



they a re a bit like chainsaw teeth in their shape and there's a reason for that shape, one side holds the locking shaft and the other side holds it centrally so it cant slip out sideways from the lock.





in this pic you can see the interference of the lock pin to the tooth, with the flexible glass rod between the rudder and the lock it snaps in and out with a similar noise like a mousetrap going off
Its also very easy to lock and un-lock one-handed, and yet cant unlock itself