Nasa / Space

NASA's aircraft of the future (images)

5 comments
llandau
llandau

Do the test in windtunnel assuming the weight of passengers/crew or as an empty vehicle? Or both?

Professor8
Professor8

I'd prefer to see millions of nice, private flying cars -- traveling wherever and whenever the owners wish. Tossing away tax-victim funds on these big government, pie-in-the-sky environmentalist whacko projects must end.

desilvav
desilvav

... what a shame you could not find non-US examples!

jos.paglia
jos.paglia

Mass/volume and linear measurements scale at different rates, so trying to calculate weight variables in a wind tunnel test - which is used to check flow dynamics around the structual shape of an object, IIRC - is probably prohibitively expensive in computational terms, given any potential return. Empty vs. loaded mass (which would also include the fuel when tanks are full, and consumption rates) is more an issue for thrust (engine output) efficiency. Wind tunnel testing WRT lift can be simulated for different thrust by varying the wind speed, without regard for the mass of the vehicle.

ejimenezp
ejimenezp

This story is about NASA not Europe as$^&le! I bet you're French.