The comment from hotrod150 in his last post-
"...IMHO they could improve the looks alot by reshaping the trailing edge of the rudder & adding a small dorsal fin"
-got me thinking about when I was in Hays KS a couple of weeks ago for the RANS homecoming fly-in. A couple of us were standing on the flightline when a Murphy Moose landed and taxied by on the way to a tie down. I noticed a funny looking area on the fuselage in front of the horizontal stab and wondered what in the heck could have happened; and thought that I sure would hesitate to fly a plane that looked like that...



Hard to tell from the pics, but the side skins between bulkheads in the affected area were sunk in (concave) by at least an inch...I only have pics of the right side, but the left was just as bad...
There were four guys in the plane, and we watched as they hopped out, walked back to the tail, and looked like they about shit in there pants. They obviously had no clue of the damage...
Walked over and talked to them: They had left the Denver area, and shortly after departure in straight and level flight at about a 90 knot cruise they felt a strong shake from the tail area that lasted for just a few seconds. It stopped, and the pilot didn't notice any adverse handling from the plane so they continued on to Hays.
Speculation is that they encountered rudder flutter. Scary thing as the Moose is built like a tank, and any other less well built plane just might have lost the entire tail. I know nothing about the Murphy Moose, but it appears the top rudder tip on this plane is different than other pics of the Moose on the company website. Whether it is a modified rudder or not I can't say, and whether it had anything at all to do with the possible flutter I also can't say...but changing anything from the original design of a plane could have dire consequences. Us experimental types need to beware!
Tom