Goodness knows how you'd find it, msponer, but about 1983, there was a magazine article with instructions for making a reefing wind
scoop, and I made one of them for our first Insatiable. It was a bit of a nuisance to set up, but it worked well in light rain, but not in heavy wind.
Now, I have made a dorade concept hatch dodger
for our forehatch, which is easier to put up and take down, but does not function as a breeze enhancer, which the first one did.
Feel free to PM me if you would want more details--it's a long time ago, but I think I remember the principles.