"Morgans" wrote in message
news

snip
There are very few flying examples of shrouded light plane props. A
shroud is tough to justify, because of a couple reasons. Prop to shroud
clearance has to be VERY small, generally under 1/16", for any great
improvement of efficiency. Therein lies the rub.
Nice pun. I am proud of you :-)
Danny Deger
P.S. I liked the rest of you write-up.