elad34
- Technology
Green Skies at Mach 5
Modern air travel is a marvel. It's also a source of endless delay, annoyance and planet-killing greenhouse gases. A proposed hydrogen-powered hypersonic airliner could change all that. The plane is Reaction Engines's A2 concept, a Mach-5 (3,400mph) craft for 300 passengers funded in part by the European Union's Long-Term Advanced Propulsion Concepts and Technologies project (Lapcat). Lapcat wants an airliner that can fly from Brussels to Sydney in less than four hours. If built, the A2 will do just that—without producing a trace of carbon emissions.
2.5.2008 at 02:21pm - Comment by elad34How many times in the last decade has an airplane depressurized at altitude and not during climb or descent? Twice, both on climb-out. You take an interesting position to a point that is a little over dramatized. You are incorrect on several of your numbers, example being your conversion from knots to mph. I thought the article interesting and informative, as everyone who reads it can tell that it is news, not a thesis on hypersonic transportation.
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