korrents

aviation

Flying and the machines that do it: propulsion, airlines, runways, and what happened to Boeing.

What people on korrents have said about aviation, newest first — 25 positions from 13 people.

FilterEveryone, all time
Who Everyone BSBlake Scholl 6 BFBjorn Fehrm 5 AVAustin Vernon 4 CHCasey Handmer 1 DLDan Luu 1 DMDavid MacKay 1 DNDon Norman 1 HWHillel Wayne 1 MKMichael Kratsios 1 PCPatrick Collison 1 SBSamo Burja 1 SAScott Alexander 1 WHWayne Hale 1
When All time Past 1 yearPast 3 yearsPast 5 years
  1. SA

    Scott Alexander quoted

    Our readingAI systems should be understood as something between airplanes and humans, since it can no longer be assumed they lack humanlike motivations.

    Their wordsRather than treat AI as similar to airplanes, we should treat it as something between airplanes and humans. We don’t know exactly where on this spectrum they will land, but we can no longer be certain that AI will lack any given humanlike motivation.

    ↗Nicholas Decker In Hellastralcodexten.com

    motivation

    Interesting
  2. 2 weeks earlier
  3. MK

    Michael Kratsios quoted

    Our readingSupersonic flight is the most obvious example of technological stagnation there is: we fly slower today than the Concorde did.

    Their wordsI think it's the most obvious sort of like in your face example of technological stagnation. We had the Concorde flying years ago. We're flying slower than we were back then today. Absolute tragedy.

    ↗Michael Kratsios: Inside the White House's AI Strategyyoutube.com 13th of 20 in this recording

    Interesting
  4. 3 weeks earlier
  5. PC

    Patrick Collison quoted

    Our readingThis is not the last moment to start a company, and the belief that the window is about to close is a recurring millenarian instinct.

    Their wordsI mean, obviously aviation was was a pretty big deal, but uh I I I don't think it was sort of quite the um the sociological rewriting that some of the you know excitable proponents at the time imagined. So I am you know it's it's hard to predict anything especially the future but I would I would take the under on this being the last couple of years to get a company going.

    ↗Patrick Collison: Is AI Breaking the Lean Startup Playbook?youtube.com 6th of 20 in this recording

    Interesting
  6. 3 days earlier
  7. BS

    Blake Scholl quoted

    Our readingHalf a century after Apollo and Concorde we can neither reach the moon nor fly faster than sound: the future stopped getting faster.

    Their wordsIn 1969, we landed on the moon for the first time and the same year we flew Concord, the faster than the speed of sound airliner. The future was supposed to be faster and better. where we're supposed to look forward to innovation in air and in space. And yet, half a century later, we can't go to the moon and we can't fly faster than the speed of sound.

    ↗Blake Scholl: How 50 People Built a Supersonic Jetyoutube.com 1st of 22 in this recording

    innovation

    Interesting
  9. BS

    Blake Scholl quoted

    Our readingAirliner design has not progressed in fifty years — the newest jet is no faster and makes the world no more accessible than the one that opened the jet age.

    Their wordsBut if we fast forward half a century, this is the 787, their latest airliner, which by the way was launched more than 20 years ago. You can't spot the difference. It doesn't fly any faster. It doesn't make the world any more accessible.

    ↗Blake Scholl: How 50 People Built a Supersonic Jetyoutube.com 3rd of 22 in this recording

    design

    Interesting
  11. BS

    Blake Scholl quoted

    Our readingWhen air travel doubles in speed the important changes happen on the ground: Hawaii was not a tourist destination until the jet made it reachable.

    Their wordsThose first jetliners truly did double the speed of what had come before them. And was they doubled the speed of air travel, the most important changes were on the ground. Hawaii was simply not a tourist destination before the speed of the jet.

    ↗Blake Scholl: How 50 People Built a Supersonic Jetyoutube.com 4th of 22 in this recording

    Interesting
  13. BS

    Blake Scholl quoted

    Our readingThe incumbent manufacturers will never carry aviation into a supersonic age, because they have stopped building new aeroplanes at all.

    Their wordsWell, no. They're not even building new airplanes anymore, let alone innovative new airplanes.

    ↗Blake Scholl: How 50 People Built a Supersonic Jetyoutube.com 5th of 22 in this recording

    Interesting
  15. BS

    Blake Scholl quoted

    Our readingGood software is modular, but a good aeroplane is the opposite — everything affects everything else, which is why hardware iteration has always been slow.

    Their wordsBut great airplanes are incredibly integrated and everything affects everything else. uh the the best airplane design is interplay of propulsion, of aerodynamics, of structures, of all kinds of optimizations, how you fit the systems into it.

    ↗Blake Scholl: How 50 People Built a Supersonic Jetyoutube.com 9th of 22 in this recording

    design

    Interesting
  17. BS

    Blake Scholl quoted

    Our readingA supersonic engine can be sold on the ground as a power turbine, and that is how you finance an airliner nobody would otherwise fund.

    Their wordsThis is a supersonic engine adapted for ground power generation that can ship without the rest of the airplane, thereby generating the test data, the learnings, the reliability, and also the capital that we need to go big.

    ↗Blake Scholl: How 50 People Built a Supersonic Jetyoutube.com 13th of 22 in this recording

    Interesting
  18. 8 months earlier
  19. CH

    Casey Handmer quoted

    Our readingBy 2045 natural gas will be a fuel for aviation, shipping and industrial heat rather than a way of making electricity.

    Their wordsBy 2045, natural gas will be used as LNG primarily for high performance supersonic aviation, shipping, and industrial heat.

    ↗Energy Predictions 2025caseyhandmer.wordpress.com 5th of 6 in this piece

    energy

    Interesting
  20. 4 years earlier
  21. BF

    Bjorn Fehrm quoted

    Our readingAn airliner's empty weight is at least half its take-off weight, and no flying design has ever come in below 47%.

    Their wordsThe model output, which uses data from 74 presently flying airliner variants, from short-haul Commuters to long haul Widebodies, made with aluminum or composites, shows that the OEW fraction (OEW divided by MTOW) never go below 47%.

    ↗Bjorn’s Corner: Sustainable Air Transport. Part 4. Reality checks.leehamnews.com 2nd of 3 in this piece

    design

    Interesting
  23. BF

    Bjorn Fehrm quoted

    Our readingElectric aircraft projects have collected airline orders for specifications that fail a weight calculation taught in the first hours of flight training.

    Their wordsThese projects have been around for years, yet no one has done this simple math.

    ↗Bjorn’s Corner: Sustainable Air Transport. Part 4. Reality checks.leehamnews.com 3rd of 3 in this piece

    Interesting
  24. 3 months earlier
  25. AV

    by

    Austin Vernon quoted

    Our readingA small, highly aerodynamic aircraft can beat an airliner on fuel per passenger mile, because drag reduction gets harder as the fuselage grows.

    Their wordsSurprisingly, fuel consumption per passenger mile would be lower in a Celera 500 than in a 737. The larger the fuselage, the harder it is to achieve the same drag reduction.

    ↗Air Travel Doesn't Have to be Terribleaustinvernon.site 1st of 3 in this piece

    Interesting
  27. AV

    by

    Austin Vernon quoted

    Our readingWhat air travellers actually value is door-to-door time, and public policy tends not to measure it.

    Their wordsReduction in door-to-door travel time is king. Public policy may not keep this in mind.

    ↗Air Travel Doesn't Have to be Terribleaustinvernon.site 2nd of 3 in this piece

    Interesting
  29. AV

    by

    Austin Vernon quoted

    Our readingThe constraint on point-to-point air travel is runway and tarmac capacity, not room in the sky.

    Their wordsThere is much more space in the air than on the airport tarmac. Our current hub and spoke system means some hub airports operate near runway capacity already.

    ↗Air Travel Doesn't Have to be Terribleaustinvernon.site 3rd of 3 in this piece

    Interesting
  30. 8 weeks earlier
  31. AV

    Austin Vernon quoted

    Our readingBoeing's decline began when its management moved away from the factory and the engineers stopped running it.

    Their wordsThe changes separated its management and board from the day-to-day processes at the heart of its business.

    ↗America's Aerospace Industry is Regeneratingaustinvernon.site

    Interesting
  32. 5 months earlier
  33. BF

    Bjorn Fehrm quoted

    Our readingBattery-electric airliners do not work even on optimistic assumptions, and the arithmetic said so before anyone built one.

    Their wordsHaving done the sums before hitting the keys, I was a skeptic. It just didn’t work, even with optimistic assumptions around the parameters for the aircraft and its batteries.

    ↗Bjorn’s Corner: The challenges of hydrogen. Part 31. Wrap-up: Where we standleehamnews.com 1st of 3 in this piece

    batteries

    Interesting
  35. BF

    Bjorn Fehrm quoted

    Our readingA hybrid-electric airliner ends up heavier and more complex than the aircraft it replaces and delivers no fuel saving at all.

    Their wordsNow you have a carbon fuel burning aircraft that is more complex and heavier than the plane that it replaces, and if you do your sums carefully, you find that there are no fuel efficiency gains and, therefore, no environmental gains.

    ↗Bjorn’s Corner: The challenges of hydrogen. Part 31. Wrap-up: Where we standleehamnews.com 2nd of 3 in this piece

    Interesting
  37. BF

    Bjorn Fehrm quoted

    Our readingSustainable aviation fuel cannot be scaled to the size of the fleet, because its feedstock competes with growing food.

    Their wordsThere won’t be enough of it for the 25,000 planes flying each day, the feedstock will compete with food production.

    ↗Bjorn’s Corner: The challenges of hydrogen. Part 31. Wrap-up: Where we standleehamnews.com 3rd of 3 in this piece

    Interesting
  38. 2 months earlier
  39. HW

    Hillel Wayne quoted

    Our readingBecause software is the cheapest part of a system to change, other disciplines lean on it to paper over their own physical problems, and that reliance has killed people.

    Their wordsRather than fix a trad issue with trad engineering, Boeing opted for the software kludge, and then people died.

    ↗We Are Not Specialhillelwayne.com 6th of 7 in this piece

    Interesting
  40. 18 months earlier
  41. DN

    Don Norman quoted

    Our readingWhat gets called human error is design error: technology-centred design makes people do what machines are good at and then blames them.

    Their wordsHuman error is blamed for over 90 percent of industrial and automobile accidents. It is the leading cause of aviation accidents, and medical error is reported to be the third-largest cause of death in the entire United States. Horrifying? Yes, but why do we label it “human error”? It is design error.

    ↗People-Centered (Not Tech-Driven) Designjnd.org

    Americadesign

    Interesting
  42. 13 months earlier
  43. SB

    Samo Burja quoted

    Our readingA functioning institution is a rare exception and never grows by itself: it was assembled by a founder with good judgement.

    Their wordsAnd just as a tornado cannot assemble a Boeing 747 by passing through a junkyard, functional institutions are not spontaneously generated. The machinery, if it functions, was assembled by someone with good judgment: the institution’s founder.

    ↗Functional Institutions are the Exceptionsamoburja.com 1st of 2 in this piece

    Interesting
  44. 3 years earlier
  45. DL

    Dan Luu quoted

    Our readingNormalization of deviance is well studied in healthcare and aviation and almost never discussed in software, although software organisations do it constantly.

    Their wordsIt's well studied in a number of other contexts including healthcare, aviation, mechanical engineering, aerospace engineering, and civil engineering, but we don't see it discussed in the context of software.

    ↗Normalization of deviancedanluu.com 2nd of 2 in this piece

    Interesting
  46. 3 years earlier
  47. WH

    Wayne Hale quoted

    Our readingNASA denied Shuttle crews parachutes and pressure suits because it had convinced itself the vehicle was as safe as an airliner.

    Their wordsWe were told that flying in the space shuttle was just as safe as flying in a commercial airliner, so we denied the crew parachutes and pressure suits.

    ↗After Ten Years: Enduring Lessonswaynehale.wordpress.com 4th of 4 in this piece

    Interesting
  48. 4 years earlier
  49. DM

    David MacKay quoted

    Our readingAirplanes are already almost as energy-efficient as they could possibly be, so no redesign will radically improve their efficiency.

    Their wordsplanes are already almost as energy-efficient as they could possibly be. Planes unavoidably have to use energy for two reasons: they have to throw air down in order to stay up, and they need energy to overcome air resistance. No redesign of a plane is going to radically improve its efficiency.

    ↗Sustainable Energy — without the hot airinference.org.uk 5th of 27 in this piece

    energy

    Interesting