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Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
140•theblazehen•2d ago•41 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
667•klaussilveira•14h ago•202 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
949•xnx•19h ago•551 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
122•matheusalmeida•2d ago•32 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
53•videotopia•4d ago•2 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
229•isitcontent•14h ago•25 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
16•kaonwarb•3d ago•19 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
222•dmpetrov•14h ago•117 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
26•jesperordrup•4h ago•16 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
330•vecti•16h ago•143 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
493•todsacerdoti•22h ago•243 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
381•ostacke•20h ago•95 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
359•aktau•20h ago•181 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
288•eljojo•17h ago•169 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
412•lstoll•20h ago•278 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
19•bikenaga•3d ago•4 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
63•kmm•5d ago•6 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
90•quibono•4d ago•21 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
256•i5heu•17h ago•196 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
32•romes•4d ago•3 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
43•helloplanets•4d ago•41 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
12•speckx•3d ago•4 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
59•gfortaine•12h ago•25 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
33•gmays•9h ago•12 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1066•cdrnsf•23h ago•446 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
150•vmatsiiako•19h ago•67 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
149•SerCe•10h ago•138 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
287•surprisetalk•3d ago•43 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
182•limoce•3d ago•98 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
73•phreda4•13h ago•14 comments
Open in hackernews

American Airlines flying empty Airbus A321neo across the Atlantic 20 times

https://onemileatatime.com/news/american-flying-empty-airbus-a321neo-across-atlantic/
59•corvad•5mo ago

Comments

sschueller•5mo ago
If you don't want to risk lives training pilots at least carry some cargo. I assume you would want to "train" someone on a fully loaded plane as well?
nottorp•5mo ago
But ... it's a plane configured for passengers.

There is some cargo space i guess, but maybe it's not worth the trouble as it wouldn't make any significant amount of money?

Does that airline even do any cargo operations, and thus have the know how to get cargo customers?

izacus•5mo ago
The airliners regularly make more revenue carrying cargo than with passengers on board.
alsetmusic•5mo ago
I thought part of how the USA postal service works is by flying mail on commercial planes. I think it was part of making passenger flights profitable and accessible to the public at some point?
corvad•5mo ago
If the whole point of these flights is training new pilots, would you even want to worry about cargo, especially if it's for a customer?
nottorp•5mo ago
Well I hope someone with actual aviation knowledge shows up and enlightens us.
bombcar•5mo ago
Think of all the deliveries in your town. Some are almost coincidental with your trips! But the hassle of figuring out how to do one or more of them is not worth the effort.
RandomBacon•5mo ago
Startup idea: It's like Uber, but for mail!

"Get paid to go on road trips to see and explore the country." or "Planning a vacation? We'll help you pay for it and take you to exciting new places few rarely get to see!" or "Need new pics for Insta? Get paid while looking for backdrops no one else has!"

Please give me my billion dollar seed investment now.

/joke

nottorp•5mo ago
You didn't mention "AI" so you can at best get 1.5 million.
Stevvo•5mo ago
It says they are using a "domestic configured Airbus A321neo"; it probably doesn't have the range to make the trip with cargo. The idea being the train pilots on the NEO so they can fly/teach it on the XLR.
tgv•5mo ago
It should be able to carry at least 180 passengers times 80kg = 14400kg, right? And airlines don't like losing money, so perhaps it's something else, like not having the infrastructure/licenses to haul cargo?
adgjlsfhk1•5mo ago
not if the plan is to do the actual flights on the xlr which is a longer range variant of the same plane
tgv•5mo ago
Apparently, the A321neo has a range of 7400km, which is more than enough for Philadelphia-Edinburgh.
nutjob2•5mo ago
They're not qualified pilots so carrying anything would be breaking the rules.
sleepyguy•5mo ago
Did anyone else notice they are flying narrow-body aircraft across the Atlantic?

Perhaps testing a trans-Atlantic flight using a narrow-body. Currently, everyone only flies wide-body aircraft. This may be a feasibility test to fly smaller aircraft (737, A320, etc) transatlantic and train narrow-body check airmen in transatlantic crossings.

This would be an interesting change and development.

cperciva•5mo ago
Currently, everyone only flies wide-body aircraft.

Air Canada operates YUL-EDI and YHZ-LHR on 737s, and WestJet operates YHZ-BCN, YYZ-EDI, and YYZ-DUB. And that's not even counting the dozens of flights to and from KEF (which might or might not count as TATL depending on whether you consider Iceland to be in Europe or in the middle of the Atlantic).

madcaptenor•5mo ago
For those who don't speak airport code: http://www.gcmap.com/mapui?P=YUL-EDI,+YHZ-LHR,+YHZ-BCN,+YYZ-...
sleepyguy•5mo ago
PHL to EDI is further than the AC and WestJet flights, and I wouldn't count KEF as transatlantic. I'm not aware of any US carriers flying narrow bodies across the Atlantic. American has an old US Air Hub in Philly, so I imagine that is why it is from PHL.
ta1243•5mo ago
JetBlue do a lot of transatlantic on A321neos, including New York to Amsterdam which is 300 miles further than Philadelphia to Edinburgh
rsynnott•5mo ago
United at least used to; I was on a united 757 from Chicago to Dublin once.

(I wouldn't particularly recommend it.)

JCM9•5mo ago
JetBlue also flying narrow bodies across the pond. It used to be not a thing but with lots of ETOPS narrow bodies out there it’s pretty common now.
rob74•5mo ago
There has already been a narrow-body aircraft that can fly transatlantic routes for quite some time: the Boeing 757. In fact, American operated 177 of them until they were retired early in 2020 due to Covid (according to https://en.wikipedia.org/wiki/American_Airlines_fleet; video of a Dublin-Philadelphia flight: https://www.youtube.com/watch?v=U1OIdiKgqrA), and now intends to use the A321 XLR for the same role.
joezydeco•5mo ago
United inherited a bunch of long-range 757s with the Continental merger. I flew one Newark-Stuttgart one summer. United saw it as a cheaper way to fly transatlantic with a smaller crew.

Problem was that the aircraft couldn't make it back to the US on a single tank of fuel if the jet stream was too strong. Which happened a lot. So we got a nice detour to Goose Bay for refueling and nearly missed our connection. The regulars joked that YYR was the new United hub on the east coast.

I don't think UA does this much anymore. Maybe COVID killed that route too.

ChrisMarshallNY•5mo ago
My favorite plane to fly on, was the 767, but that's been gone for a long time.
nunez•5mo ago
UAL still flies the 763 for international missions
profile53•5mo ago
Did you use an LLM to write this post? The Wikipedia link is hallucinated
potato3732842•5mo ago
>Did you use an LLM to write this post? The Wikipedia link is hallucinated

An erroneous ; was added. Probably not LLM.

https://en.wikipedia.org/wiki/American_Airlines_fleet

benjojo12•5mo ago
It's not hallucinated, there is just a extra ; at the end of the link
erikig•5mo ago
There's an errant semicolon in the URL, the correct URL should be: https://en.wikipedia.org/wiki/American_Airlines_fleet
rconti•5mo ago
The semicolon got added to the hyperlink rather than being a separate part of the text. A human reading this text should have been able to figure this out, while a machine might struggle, so I'm suspicious...
ta1243•5mo ago
I took a narrow body 757 form Paris to Newark back in 2010. Airline long since defunct. BA used to operate a business-only A318 from New York to London from 2009 until covid too (due to length of City runway had to stop at Shannon on the way to New York)
sleepyguy•5mo ago
BA removed a lot of seats from that plane. That is the only way they could do it.
nunez•5mo ago
fuel burn, and CASM by proxy, on the a321xlr and 7m10 are much better though many pilots love the takeoff performance of the 757.

check out how they compare here: https://www.aviatorjoe.net/go/compare/737_MAX_10/757-200/

the 757 was the best narrow-body long-haul capable jet of the time (and it was the only one of its type that could fly LGA) but more fuel-efficient engines will do to it what the 787 did to the 747.

tiahura•5mo ago
Southwest has been flying 737s to Hawaii for at least a dozen years.
trillic•5mo ago
JetBlue flies a lot of a321neo aircraft Transat.

BOS-MAD, BOS-LHR, BOS-DUB, BOS-AMS, BOS-CDG, BOS-EDI

JFK-LHR, JFK-DUB, JFK-AMS, JFK-CDG.

devilbunny•5mo ago
I flew a 757 on Delta from Atlanta to Stuttgart and back. That was pre-COVID, though.

Still, using narrowbodies isn't new.

nutjob2•5mo ago
Flying A321LR's are actually a pretty popular option already. Now Airbus is releasing the XLR variant which opens up even more routes. The feasibility is not in question, each variant has a well defined range for a given payload.
FireBeyond•5mo ago
Not quite as long, admittedly (~2,800mi) but plenty of airlines are flying narrow-body "across" the Pacific (my number there is SEA-OGG/HNL).
gaadd33•5mo ago
Jetblue only flies narrow bodies across the Atlantic, I'm sure there are a number of others too.
byteCoder•5mo ago
Airlines need to qualify aircraft for passenger-carrying transoceanic operations.

Northwest Airlines would often use their new wide body aircraft for domestic operations to meet the qualification requirements to operate long distances.

rich_sasha•5mo ago
Maybe a stupid question, but why fly them across the Atlantic? Can't they fly over continental US, or along the coast? It feels like it's the same, except any emergency is a lot less bad.
deadbabe•5mo ago
Emptier airspace
corvad•5mo ago
My best guess is that it's simpler for the pilots to focus on the plane because of less interactions with other planes and crowded airspace. The routes are probably simpler compared to domestic fights.
maxcan•5mo ago
There are quite a few specific procedures unique to crossing the North Atlantic. Part of it has to do with the absence of radar and VHF comms requiring HF or satellite communications which pilots will otherwise never use. I'm sure Pacific crossings have their own peculiarities but I'm less familiar.
abound•5mo ago
From the article:

> [...] these planes will largely be used for transatlantic flights, and that requires extra training compared to non-transatlantic operations.

zokier•5mo ago
Not a stupid question, the article is asking essentially the same question

> That brings me to another question… I understand the need for specialized training, but does anyone know what actually happens on these transatlantic flights that couldn’t be done in a simulator or classroom? Obviously these are all pilots who already know how to fly the plane, so it’s just transatlantic operations that they’re being certified on. So is it about interacting with air traffic control, understanding the North Atlantic Tracks, etc.?

nutjob2•5mo ago
Because they're flying over water. When an engine fails you have a lot fewer choices as to landing compared to flying over the US.
wnc3141•5mo ago
I'm sure some of it has to do with operating within the North Atlantic Tracks. Essentially when you lose radio connection you are placed in a slot with a specific speed, bearing, and altitude without the ability to be in constant contact with FAA radio guidance. - the airspace is more congested than you might imagine.

https://en.wikipedia.org/wiki/North_Atlantic_Tracks

wnc3141•5mo ago
expanding upon my above: this article is neat. https://aerosavvy.com/north-atlantic-tracks/
teamonkey•5mo ago
The unbelievably mundane answer is "training pilots".
jmmv•5mo ago
The article goes through an unbelievably amount of fluff to just say that. Thanks for confirming my own read.
xeonmc•5mo ago
I mean, you can’t really practice barrel rolls with a planeful of passengers, can you?
jjk166•5mo ago
There is probably a small market for people who would love to be passengers on that flight.
Sohcahtoa82•5mo ago
Barrel rolls, probably not.

You could fly in the "vomit comet" though and do 30 consecutive seconds of Zero-G.

https://en.wikipedia.org/wiki/Reduced-gravity_aircraft

bdunks•5mo ago
Tell that to Tex Johnson:

https://youtu.be/Ra_khhzuFlE?si=MxkaSRaIYFvbGqil

DylanSp•5mo ago
To be slightly more specific - training pilots that can train/certify other pilots.
rsynnott•5mo ago
Huh, yes, I was expecting this to be keeping gate allocations or something else weird (there was a certain amount of that early in the pandemic).
freejazz•5mo ago
New season of The Rehearsal?
MrGilbert•5mo ago
In 2019, I was part of a research project. One of the meetings took place in Eilat, Israel. A colleague of mine and me myself took a flight from Frankfurt to Eilat. There where 4 people on the Airbus - basically each of us had their own steward. It was wild. I think I'll never be able to recover my ecological footprint from that. From what I remember, the route was initially planned for the Eilat-Ramon Airport by Lufthansa, but wasn't yet open at that time. We landed on a military airport north of Eilat. Being two blokes in their mid- to end-twenties, we got questioned at the airport. He went to some muslim countries before, so… there were some questions to be asked by authorities.

When we left a few days later, we where greeted by a man at the checkout. No name tag, wearing a black suit. Spoke perfect german. Casually talking to us while we checked out. To this day I wonder if he was from Mossad or something. It was strange. It‘s pretty easy to develop some kind of paranoia in this setting.^^ Eilat itself was nice, though. Many Russians where on vacation there back in the days.

On our flight back, we boarded the plane with three other people.

jeffbee•5mo ago
This is a good way to contextualize the energy and carbon intensity of AI training. Every single time you fly a plane like this across a continent or ocean, you use energy comparable to a large model training run.
hedora•5mo ago
Source? Large model training runs cost more than flying a plane across the atlantic, so this doesn’t sound right.
jjk166•5mo ago
Yeah, it's way off. GPT-4 required the energy of about 1.3 million gallons of jet fuel; a fully fueled A321 has about 9000 gallons of jet fuel. That's 2 orders of magnitude off. Even a GPT-3 training run would have been about 4 times as energy intensive as an A321 flight.
jeffbee•5mo ago
Flying an A321neo JFK to LHR emits over 60 tons of CO2, which is 50% more than was emitted when training GLaM.
hedora•5mo ago
Those CO2 numbers probably aren’t trustworthy.

If the training run hadn’t happened, would the renewable/nuclear plants with lower marginal costs have curtailed production before the carbon intensive plants that have higher marginal costs? That doesn’t make any economic sense. Instead, carbon intensive power made up for the shortfall in production created by the run.

If the companies that ran the training can also show me a 6000 ton brick of carbon they pulled out of the atmosphere, or equivalent early-decommissioned natural gas / coal boilers, then I’ll stand corrected.

ChrisMarshallNY•5mo ago
I wonder if Boeing will survive.

The under-the-breath takeaway from this, is that AA is training its pilots on Airbus. Actually, it's training its pilot trainers on Airbus.

FireBeyond•5mo ago
That's not a concern. At that level, you need to be "type-certified". It's not that they are training on Airbus aircraft, it's that "to operate Airbus (or Boeing or Embraer), you must train on Airbus (Boeing, or Embraer)".

In addition to type certification for a pilot, each airline will then layer their SOPs on top of that, the "this is how -we- fly this aircraft on these types of routes".

kayfox•5mo ago
American Airlines already has around 450 Airbus aircraft, its not news that they are training their Airbus trainers on a new route.
massysett•5mo ago
Can the headline be changed on this so it’s not ridiculous clickbait? “American Airlines trains its pilots by having them fly airplanes” is more informative.
iJohnDoe•5mo ago
This reason this title is clickbait is because flying empty airplanes is actually really controversial.

Airlines need a certain amount of flights to keep their gate slots at airports.

Ghost flights were a thing during COVID. You had airlines burning 30,000 to 80,000 gallons of fuel and putting tons of pollution into the air for empty flights just to maintain gate slots.

I was expecting this article to be about these types of ghost flights.

> The rule: At busy airports, airlines must use their allocated takeoff and landing slots for a certain percentage of their scheduled flights (typically 80%) to retain them for the next season.

> Regulatory response: The rule was initially relaxed in March 2020 but was later reintroduced with lower thresholds, such as 50% or 70%, which still compelled airlines to operate some unnecessary flights.