kissmysquirrel,
wouldnt the lower blade water just run out? upper blade may also have a drain so no water stays in there? I have trouble believing that they would make such a stupid mistake. (or maybe on start up, as the blades spin up, a shaft of ice could shoot out, injuring anyone in the flight path? ) But they look very substantial blades all the same!
Yes, the lower blade would of course drain out, but the other one has nowhere where to drain out. It a big mistake, and even the Agusta guys in Philadelphia are talking about it, imagine having 2 grams of frozen water in one blade and the other one empty!
Agusta's solution is to park the blades horizontal.