Hypersonic Flight: Europe to Australia in 5 hrs with Liquid Hydrogen

  • Thread starter Thread starter EnumaElish
  • Start date Start date
AI Thread Summary
British engineers have proposed a hypersonic jet capable of traveling from Europe to Australia in under five hours, utilizing liquid hydrogen as fuel. This fuel choice is touted for its ecological benefits, producing water and nitrous oxide instead of carbon emissions. However, questions arise regarding the environmental impact of hydrogen production, which typically requires significant energy input, potentially undermining its eco-friendly claims unless sourced from renewable or nuclear energy. Additionally, concerns about the inefficiency of hypersonic flight and skepticism about the legitimacy of the project suggest it may be more of a marketing initiative than a viable technological advancement. The jet features a hybrid jet/rocket engine design, but doubts persist regarding the project's authenticity and feasibility.
EnumaElish
Science Advisor
Messages
2,346
Reaction score
124
Hypersonic jet could reach Australia in under five hours

Tue Feb 5, 7:05 AM ET

LONDON (AFP) - British engineers unveiled plans Tuesday for a hypersonic jet which could fly from Europe to Australia in less than five hours.

...

It operates on liquid hydrogen, which is more ecologically friendly as it gives off water and nitrous oxide instead of carbon emissions.

...
http://news.yahoo.com/s/afp/20080205/ts_afp/britaintechnologyaustraliaeuaviationplane_080205120505

Is this same as scramjet technology, or is it a new technology?
 
Last edited by a moderator:
Computer science news on Phys.org
Why's it give off nitrous oxide?
 
Hydrogen isn't natural in molecular form, so it needs to be generated. That requires energy, so unless they use something like nuclear power to generate the hydrogen, it will most certainly not be ecologically friendly. Also, hypersonic flight itself is extremely inefficient.

Tree hugging hippie crap aside, hypersonic flight is very cool. Their website shows a hybrid jet/rocket engine: http://www.reactionengines.co.uk/sabre.html

Unfortunately, though, what we have here is neither a real company nor a real project. It's just press for the purpose of generating revenue.
 
Last edited by a moderator:
Thread 'ChatGPT Examples, Good and Bad'

Thread 'ChatGPT Examples, Good and Bad'

I've been experimenting with ChatGPT. Some results are good, some very very bad. I think examples can help expose the properties of this AI. Maybe you can post some of your favorite examples and tell us what they reveal about the properties of this AI. (I had problems with copy/paste of text and formatting, so I'm posting my examples as screen shots. That is a promising start. :smile: But then I provided values V=1, R1=1, R2=2, R3=3 and asked for the value of I. At first, it said...
View full post »

Thread 'MS 365 Profile Badge colour'

Sorry if 'Profile Badge' is not the correct term. I have an MS 365 subscription and I've noticed on my Word documents the small circle with my initials in it is sometimes different in colour document to document (it's the circle at the top right of the doc, that, when you hover over it it tells you you're signed in; if you click on it you get a bit more info). Last night I had four docs with a red circle, one with blue. When I closed the blue and opened it again it was red. Today I have 3...
View full post »

Hot Threads

Recent Insights

Back
Top