this post was submitted on 13 Jan 2024
221 points (97.4% liked)

science

14902 readers
480 users here now

A community to post scientific articles, news, and civil discussion.

rule #1: be kind

<--- rules currently under construction, see current pinned post.

2024-11-11

founded 2 years ago
MODERATORS
 

In launch event on Friday, agency shared plans to test over US cities to see if it’s quiet enough by engaging ‘the people below’

Nasa has unveiled a one-of-a-kind quiet supersonic aircraft as part of the US space agency’s mission to make commercial supersonic flight possible.

In a joint ceremony with Lockheed Martin Skunk Works in Palmdale, California, on Friday, Nasa revealed the X-59, an experimental aircraft that is expected to fly at 1.4 times the speed of sound – or 925mph (1,488 km/h).

The aircraft, which stands at 99.7ft (30.4 metres) long and 29.5ft wide, has a thin, tapered nose that comprises nearly a third of the aircraft’s full length – a feature designed to disperse shock waves that would typically surround supersonic aircraft and result in sonic booms.

you are viewing a single comment's thread
view the rest of the comments
[–] AbouBenAdhem 15 points 10 months ago (7 children)

Pierce said the X-59’s job would be to “collect data from the people below, determine if that sonic thump is acceptable and then turn the data over to US and international regulatory authorities in hopes to then lift that ban”.

Why can’t commercial airlines fund the project, then? Why is NASA investing public money to deregulate private industry?

[–] [email protected] 42 points 10 months ago (1 children)

Huh? NASA is providing thought leadership to expand the possibilities of human travel, but has no interest in running a commercial airline.

Many technologies you use every day started as NASA research

[–] [email protected] -4 points 10 months ago (2 children)

Why are tax dollars going to something that will only benefit a small percentage of people and will cause relatively bad environmental damage.

[–] [email protected] 2 points 10 months ago (1 children)

Are you aware what NASA stands for?

I personally am happy some of my tax dollars go towards advancing science.

The reason we have issues in society...homeless people, lack of universal healthcare, etc is not because we find NASA, it's via mismanagement of the funds we have, and bad politics, etc. None of which are NASAs fault or purpose.

NASA does a huge amount of environmental research as well. But part of their team focuses on experimental flight, and this is a product of that.

[–] [email protected] 2 points 10 months ago

I'm happy to fund science too, but this isn't the time to develop even more fuel-intensive commercial travel options.

[–] Cocodapuf 2 points 10 months ago (1 children)

Nasa is always researching supersonic/hypersonic travel, that's what a space agency does.

It would be hard to list ALL of the ways that research benefits you.

[–] [email protected] 3 points 10 months ago (1 children)

Yeah but it doesn't usually research how to make commercials transportation way less fuel efficient.

"The New York Times looked at the same comparison in the late 1970s when rising fuel prices were causing major difficulties for Concorde. It concluded that Concorde used four times the amount of fuel of the 747, based on a New York to Paris flight. These comparisons are even worse when looking on a per passenger basis – Concorde, of course, only took 100 passengers, compared to well over 400 on the 747-400." source

Planes are already a bad source of pollution, this makes it 8 times worse. Awful.

[–] Cocodapuf 1 points 10 months ago (1 children)

It's researching how to make "any" supersonic vehicle quieter... You know NASA does have a whole fleet of supersonic vehicles, but they can't operate them anywhere over land in the US. It's literally illegal to fly a supersonic vehicle over populated areas (most of the US).

You act like this technology is only applicable to commercial passenger liners, but it's literally all supersonic aircraft.

[–] [email protected] 1 points 10 months ago (1 children)

"Nasa unveils quiet supersonic aircraft in effort to revive commercial flights"

Title of the article and this post.

[–] Cocodapuf 1 points 10 months ago

Ohh, does the headline changes all the facts in my statement?

These are advances in physics. Understanding the sound created by sonic booms is really understanding the nature of airflow and shockwaves in the supersonic regime. This is critical scientific development for NASA this could lead to more efficient rockets, and space planes as well as more efficient engines.

Did you know that the F1 engine that powered the Saturn V suffered from 1 major problem? Combustion instability, due to acoustic disturbances in the combustion chamber. Because of this they had to turn shut down at least 1 engine early in every launch. Understanding supersonic shockwaves is exactly the kind of thing that could have solved that problem.

A headline changes nothing.

[–] DistractedDev 34 points 10 months ago

The first A in NASA is aeronautics. They just do the science. I would say deregulation is a fairly strong word here. It's more like they'd be updating the laws to reflect modern tech.

[–] [email protected] 12 points 10 months ago (3 children)

This is literally how every expensive R&D project gets done. Private companies won't dump this kind of money into good R&D, but the government will because they don't care about ROI.

[–] [email protected] 2 points 10 months ago

Except this ignores the existence of bell labs, you know the private R&D lab with ten Nobel prizes and a laundry list of inventions that quite literally shaped our modern world.

[–] [email protected] 9 points 10 months ago (1 children)

Deregulate is not the same as engineering a solution to solve the problem that was previously solved by regulations.

[–] [email protected] 1 points 10 months ago

The assumption that all regulations are good now, and in perpetuity, is the issue here. Deregulation of shite or outdated regs is a good thing ffs.

It's insane to me that the word seems so opaque to people.

[–] [email protected] 6 points 10 months ago

This is probably defense spending, tbh.

[–] Aceticon 4 points 10 months ago

American is a Socialist country for those wealthy enough.

[–] Linkerbaan -4 points 10 months ago (1 children)

This is outsourced to Lockheed Martin so it's basically just using Nasa to fund the military even more. There is nothing commercially interesting about this. It's all military planes.

[–] [email protected] 2 points 10 months ago

Well, this might be missile research.