[dirtboy]

Arrgh! Should read:

If this were practical, the private sector would already be doing it. They can make the planes as cheap as they want, but you still have to pay the pilots.

Not only that, but the government is in the business of creating expensive transportation solutions that require massive subsidies and fail to address the core congestion problems. Light rail is a classic example.

[cynicom]

Eclipse 500 is already under production and is a winner.

[dalereed]

"If this were practical, the private sector would already be doing it."

They don't need their study, all they have to do is buy the Eclipse when it's on the market in the near future. It is exactly what NASA proposes only it's being marketed and sold to general avaition.

I'd love to be able to afford one, a real bargain for under $1 million!

[Saturnalia]

But letting NASA spend $$ to produce fuel efficient engines should be a good thing.
Besides, anything distracting them from producing laser death ray satellites can only be a good thing.