Bob Shirley posted a harrowing story on a sailing anarchy forum:
You have to go through a pile of posts, this one is dated June 13, 2020. The short of it is this: while sailing rather far offshore at Ventura, on a fast downwind ride he moved out to the “back porch”, the stern end of the vaka (main hull) right next to the rudder. Unfortunately, he fell off the back end. He had his tether on, or he’d have been dead, several miles offshore alone in the water represents very poor odds indeed; the Weta would have just kept going without him. He could reach the aft crossbar but was unable to pull himself back into the boat or cause it to do anything but keep blasting downwind. He was dragged at least an hour, the GPS estimated 5 miles of misery before coming to the beach.
The standard tether padeye is placed roughly halfway astern in the bottom of the vaka, it works just fine for putting your rear end out on the ama, although you may need to fine tune your tether length to get what you want. As Bob’s experience points out, it is very poorly placed if you go out on the back end. The solution to this was pioneered by Jonathan Weston (aka Donuts) to my knowledge, others may have also done this. He placed a padeye just behind the daggerboard trunk. This post details how I did this procedure. In honor of Bob’s mishap, I am calling it the “Anti-Bobsledding fixture,” you can call it whatever you like.
· Haas Stainless Steel One Way Folding Pad Eye, Part No.: 51637006, available from E-rigging for less than $6.