Excellent video's. I've seen the tragic Osprey one before. I have to disagree on scrapping the project. It's a new design, a new point in aviation and it should be kept with. After all it's a mechanical design now in practice and no longer in theory, once in practice it's almost always certain it can be perfected. Think about the first introductions of the jet engine. They killed a lot of people and a lot of things went wrong but they stuck with it and now it's the only viable propulsion system with a combination of economy and speed.
And I have heard that the RAH-66 program is only on stand-by, not actually abandoned.