Compound Helicopter Design

Yes, the reason I compared to the old 206B is because it has about the same size rotor and is a very popular, efficient, quite proven utility helicopter. Not that fast, but fast enough. Lifts a good payload. Very economical aircraft. So how do these super high-speed designs compare? That’s what I was looking at. I would expect the power loading to be a little higher like on the X2, which is a heavier helicopter but certainly not any bigger than a JetRanger. But when we’re pulling 1,680shp to go 250kts the question arises as to why when the old JetRanger can do what it does on 317shp from it’s Allison 250 :grinning: