ron-powell,
You are right, the speed is a strong virtue. What my presentation does is to be sure that you (and others) recognize the cost of that speed. Up to now, only the silly tales from tilt rotor advocates have been circulating, ("twice as much, twice as fast, twice as far,") so that poor Mediahawk and Woolf get to actually think a tilt rotor will take them farther.
I am not an anti-tilt rotor person, I only tell the facts. YOU think I am an anti-tiltrotor person because you dont seem to want the facts. Too bad, because you will discover that facts are stubborn things.
BTW, if economics are not an issue, and only speed counts, why don't you own a Lamberghini?
Nick
BTW, I flew the ABC, the original design for the X2, and I know a bit about it. IThe X2 will not sacrifice very much cost or range or payload for speed, it is at its core a very efficient helicopter, just one that will cruise at 250 knots!