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Aircraft concept shows a hypersonic vehicle for passengers

9 points by joering2 8y ago

doggles 8y ago
Fake news...
gleglegle 8y ago
"20-30 years"
AdamGibbins 8y ago
I can't find any reputable news source for this, the article doesn't even mention a code name.
black_puppydog 8y ago
video with sound on autoplay. a no-go for me.
fluxsauce 8y ago
http://www.boeing.com/features/2018/06/hypersonic-concept-vehicle.page http://www.boeing.com/features/2018/06/hypersonic-concept-ve... It's a concept that is 20-30 years off. Neat, but not real yet.
- sctb 8y ago
  Thanks, we've updated the link from https://www.dailystar.co.uk/news/world-news/712276/boeing-hypersonic-plane-concorde-airliner-new-york-london-mach-5-plane-future https://www.dailystar.co.uk/news/world-news/712276/boeing-hy..., which is less... pleasant.
ravenstine 8y ago
I've heard this sort of aircraft promised since I was in 3rd grade, and I'm sure it was promised to my parents before I was born. Who knows if we'll ever be flying anything like this to carry passengers. If it was more profitable than flying what are essentially planes from the 1950's, someone would have already turned these triangular "hypersonic" planes into a reality and made a fortune.
notahacker 8y ago
Never thought I'd see an article from the Daily Star (basically the UK National Enquirer) on Hacker News [edit: link changed by mods] Further links here explaining the theory behind the hypersonic engine and hinting the main reason for Boeing producing this concept art (which doesn't have any theoretical specs to back it up) is to draw a bit more attention to its hypersonic military projects which might be a very early starting point for the development of big hypersonic passenger aircraft, maybe, if the economics ever look remotely sane. https://www.popularmechanics.com/flight/a21948533/boeing- https://www.popularmechanics.com/flight/a21948533/boeing- https://www.flightglobal.com/news/articles/boeing-unveils-long-term-concept-for-hypersonic-airl-449749/hypersonic-passenger-plane-concept/ https://www.flightglobal.com/news/articles/boeing-unveils-lo...
- _FKS_ 8y ago
  The first article has wrong figures. "the skin of the aircraft (probably made of titanium) gets as hot as 12,000 degrees F during flight because of air friction." First, there's no material on earth that could sustain that kind of heat. Titanium has a melting point at 3,000 degrees F. Tungsten about 6,000 degrees F. Other composites, maybe a bit more. But nothing at 12,000 degrees F. Second, the only plane that somehow had regular service at that kind of speeds was the SR-71. It was indeed made of titanium. The front of the plane had to sustain a temperature of over 600 degrees F, and it was only for short periods of time. Nothing close to 12,000 degrees F and was already a feat. Third, titanium is extremely hard to work with. Ask the SR-71 guys. Tools had to be made especially to build that plane, for hundreds times more than regular tools. They break down often and you need to replace them. Nothing to sustain a production line.

9 points by joering2 8y ago

doggles 8y ago

Fake news...

gleglegle 8y ago

"20-30 years"

AdamGibbins 8y ago

I can't find any reputable news source for this, the article doesn't even mention a code name.

black_puppydog 8y ago

video with sound on autoplay. a no-go for me.

fluxsauce 8y ago

http://www.boeing.com/features/2018/06/hypersonic-concept-vehicle.page http://www.boeing.com/features/2018/06/hypersonic-concept-ve... It's a concept that is 20-30 years off. Neat, but not real yet.

sctb 8y ago
Thanks, we've updated the link from https://www.dailystar.co.uk/news/world-news/712276/boeing-hypersonic-plane-concorde-airliner-new-york-london-mach-5-plane-future https://www.dailystar.co.uk/news/world-news/712276/boeing-hy..., which is less... pleasant.

ravenstine 8y ago

I've heard this sort of aircraft promised since I was in 3rd grade, and I'm sure it was promised to my parents before I was born. Who knows if we'll ever be flying anything like this to carry passengers. If it was more profitable than flying what are essentially planes from the 1950's, someone would have already turned these triangular "hypersonic" planes into a reality and made a fortune.

notahacker 8y ago

Never thought I'd see an article from the Daily Star (basically the UK National Enquirer) on Hacker News [edit: link changed by mods] Further links here explaining the theory behind the hypersonic engine and hinting the main reason for Boeing producing this concept art (which doesn't have any theoretical specs to back it up) is to draw a bit more attention to its hypersonic military projects which might be a very early starting point for the development of big hypersonic passenger aircraft, maybe, if the economics ever look remotely sane. https://www.popularmechanics.com/flight/a21948533/boeing- https://www.popularmechanics.com/flight/a21948533/boeing- https://www.flightglobal.com/news/articles/boeing-unveils-long-term-concept-for-hypersonic-airl-449749/hypersonic-passenger-plane-concept/ https://www.flightglobal.com/news/articles/boeing-unveils-lo...

_FKS_ 8y ago
The first article has wrong figures. "the skin of the aircraft (probably made of titanium) gets as hot as 12,000 degrees F during flight because of air friction." First, there's no material on earth that could sustain that kind of heat. Titanium has a melting point at 3,000 degrees F. Tungsten about 6,000 degrees F. Other composites, maybe a bit more. But nothing at 12,000 degrees F. Second, the only plane that somehow had regular service at that kind of speeds was the SR-71. It was indeed made of titanium. The front of the plane had to sustain a temperature of over 600 degrees F, and it was only for short periods of time. Nothing close to 12,000 degrees F and was already a feat. Third, titanium is extremely hard to work with. Ask the SR-71 guys. Tools had to be made especially to build that plane, for hundreds times more than regular tools. They break down often and you need to replace them. Nothing to sustain a production line.