So I've had this thing for about a year now and I still don't quite get it. I understand the toothy part on the bottom is for the chain, and the winch drum above is for the nylon rode, but what is that sharp little locking tooth for on the bottom? It doesn't seem like it moves.
And the biggest mystery is what is the arm for? I've never seen a windlass with the extendable arm like that, and it doesn't seem to do anything except be a tangling liability. I'd like to take it off if possible - both that arm and the sharp tooth in the 2nd picture are spinnaker-destroyers.