The only photo of the Concorde flying at supersonic speed

177 points by alex_young 5 months ago | 138 comments
  • idlewords 5 months ago
    Here is a monster pilot forum thread on Concorde that ends up pulling in senior engineers, pilots, aerodynamicists and even a former flight attendant. They lovingly go over every detail of the plane's design and operation.

    WARNING, serious temporal hazard. Do not click if you have work to do today or are supervising small children.

    https://www.pprune.org/tech-log/423988-concorde-question.htm...

    • bragr 5 months ago
      >serious temporal hazard

      Wow, you're not wrong. "I'll read just a little bit," I said. 2 hours later...

      • dang 5 months ago
        Discussed way back when (thank you!):

        Epic Forum Thread on Concorde (2010) - https://news.ycombinator.com/item?id=8277343 - Sept 2014 (49 comments)

        We should have another HN thead about this once the Boom boom settles down.

        • idlewords 5 months ago
          There's also that thread about the Belgian couple who drove across the Congo:

          https://forum.expeditionportal.com/threads/democratic-republ...

          I call these kinds of forum threads "afternoon destroyers". It would be fun to weaponize them into a whole organized link page.

          • tptacek 5 months ago
            This is amazing. 10 minutes in I finally reached the entry labeled "Day 2" and closed the window out of self-defense. I'm going to send this link to annoying customer support clients to buy myself time.
        • walterbell 5 months ago
          Long live old-school forums!
          • Fizzadar 5 months ago
            Thank you for the lost hours :) Fascinating read.
            • anothertroll456 5 months ago
              That was amazing! Thank you.

              Wait, idlewords is still around??

            • walterbell 5 months ago
              Boom Supersonic (US) has a Mach 1 test flight in 2 days, https://www.aerotime.aero/articles/boom-supersonic-mach-one-...

              Test flight livestream (Tue Jan 28 6:45AM PST/9:45AM EST/2:45PM GMT), https://boomsupersonic.com/flyby/xb-1-supersonic-test-flight...

              • esskay 5 months ago
                It's going to be interesting to see where things go with this. I'm still struggling to see why their offering would have a different fate, if not worse. It's got a lower passenger capacity but still has the same cost issues that plagued Concorde.

                I guess the only difference really is they arent shy about making it clear its for business customers and not commercial airliners, and tickets will be expensive.

                • bragr 5 months ago
                  It is really going to come down to how much they can reduce the sonic boom. Supposedly their aircraft will produce more of a rumble like distant thunder rather than a bang. If its at a level that's agreeable to both regulators and the public, that would open up all the overland routes the Concord could never do. If they can combine that with higher production numbers with a corresponding drop in unit, operating, and maintenance costs, they _may_ have a valid business model.

                  Looking at how many people rent (or own) business jets with five figure+ price tags per flight, I think there's definitely a market for premium tickets, especially if you can do say LAX to Heathrow in ~5 hours instead of 10.5 hours.

                  • gosub100 5 months ago
                    I really hope this isn't the kind of innovation where the company breaks the law and asks for forgiveness later. Like "oh the sonic boom is only slightly louder than Concord but really it's just a bunch of first nations people in Canada who are impacted and we are super rich and our time is so precious please just ignore these marginalized people and we promise we'll throw them a few bucks"
                  • idlewords 5 months ago
                    The real product Boom hopes to offer is regulatory capture, so that restrictions on supersonic business jets can be lifted. Then the bizjet itself can sell as a luxury status symbol.
                    • Retric 5 months ago
                      The world and more importantly the wealthy are vastly richer today than in 1976 when the concord started flying, and the R&D costs should be far lower.

                      There’s thousands of billionaires in the world. Not all of them would buy a supersonic private airplane, but include non billionaire CEO’s etc and the market is plenty large to support moderate scale production assuming they can keep costs within a fairly low multiple of a business jet.

                      • WeylandYutani 5 months ago
                        What killed Concord iirc is that only a few airports could handle them. A rich person would just prefer a slower private jet that can land much closer to their destination. Especially since today you can basically turn your plane into a private office.
                        • gosub100 5 months ago
                          The sonic boom limited them to only flying over the sea. They could technically fly at any airport that handles large passenger jets. But if you fly supersonic over land you will piss off everyone below you.
                          • esskay 5 months ago
                            In addition to the sonic boom issue it was also cost. It cost a stupidly high amount in fuel to fly. The engines were horribly inefficient.

                            Not only that the low capacity meant that tickets would have to be orders of magnitude higher than even first class in any other commercial jet.

                            It's why I cant see Boom doing what people are assuming they'll do and make a commercial airliner. Unless you fancy spending $20k for a one way trip from JFK to LHR it's not really viable.

                        • TylerE 5 months ago
                          Not really. THat's an unmanned small scale model. Every credible engine manufacturer on the planet has declined to work with Boom. Viable engines do not exist and will not exist.
                          • walterbell 5 months ago
                            Yes, the 64-seat commercial version is years away, but this subscale prototype will carry a civilian test pilot, https://x.com/bscholl/status/1883218536476061803

                              - YC incubated, 150MM+ total funding
                              - quiet medium bypass turbofan engines
                              - wing aspect ratio higher than Concorde
                              - 5y of production orders, incl. United and American
                            • kristianp 5 months ago
                              > We wanted to build our safety technology and culture, sop we designed XB-1 without an ejection seat.

                              Wat.

                            • WrongOnInternet 5 months ago
                              [flagged]
                          • jstanley 5 months ago
                            You can go and see a Concorde at Bristol Aerospace Museum[0], and walk inside it.

                            There is an absolutely bewildering array of dials and switches exposed to the pilots[1].

                            And they have lots of other aviation stuff at the museum, it's not just Concorde. Other highlights include some very early planes, cut-away jet engines, and a cut-away section of a jumbo jet fuselage, so you can see the locations of pipes, tubes, cargo, etc. in relation to the seats. It is well worth a visit if you're nearby.

                            [0] https://aerospacebristol.org/

                            [1] https://i.redd.it/0vqv9qlx98m31.jpg

                            • pchristensen 5 months ago
                              There is also one at the Museum of Flight in Seattle - https://www.museumofflight.org/exhibits-and-events/aircraft/...

                              It looks like it would have been a very snug ride!

                              • Theodores 5 months ago
                                In period, it was not that snug. This was in an era when you could get a dozen people into town in a 2CV and the majority of adults smoked. People were a lot leaner then, and considerably shorter.

                                In 1954, in the UK, the average male was 5'7" and 11 stone, 6 lbs, which equates to quite a high BMI of 25 (18.5 - 24.9 is healthy BMI). Nowadays there are very few men in the UK with that weight. Let's ignore women from this because women were second class citizens at the time. Men are on average 2 stone heavier.

                                But average weight is just average, nowadays with 2/3 of UK adults overweight, there are far more people at the top end of the Bell Curve, at double the average weight people had on the 1950s. So half of today's population would not fit in the seats.

                                When you look at old European or Japanese cars such as the MINI or old FIATs, bear this in mind. Those cars might not have ever been spacious, but, in period, they were not cramped. Similarly, Concorde was never spacious, but it was not a very snug ride until obesity got the better of us.

                                • lostlogin 5 months ago
                                  I think that there is a reasonable argument that half the population don't fit in today's plane seats. Also, it isn't always weight related. My BMI is low 20s and I'm quite tall. I can't put my legs together, as the seat in front is too close. I hate flying.
                                  • Symbiote 5 months ago
                                    A relative who used Concord a few times didn't comment on the space, but instead said it was the noise during flight that meant he preferred British Airways first class on a normal plane, if time wasn't essential.
                                    • wink 5 months ago
                                      Looking at weight is overrated. Unless you're actually massive it usually doesn't matter for space at all.

                                      My BMI is over 25 but yesterday, in a normal train, I could hardly use my large laptop because my arms are long and my shoulders are wide. My ass fit into the seat without any problems. Also surprisingly, legroom was good.

                                      • tbrownaw 5 months ago
                                        > there are far more people at the top end of the Bell Curve

                                        ... Do bell curves actually work that way?

                                        • zimpenfish 5 months ago
                                          > In 1954, in the UK, the average male was 5'7" and 11 stone, 6 lbs

                                          Yeah, that's probably down to the post-WW2 rationing rather than any kind of "people were just thinner then".

                                        • LeFantome 5 months ago
                                          When the Concorde flew, the panels would expand. On the last flight of the one in Seattle, one of the crew stuck their hat in one. When it slowed down, the hat became stuck in the wall. It is still there.

                                          Kinda cool.

                                          • CalChris 5 months ago
                                            • duxup 5 months ago
                                              Yup I’ve been in that one. It has a wonder retro style, and yes with its 2 seats and 2 seats setup it seems very narrow inside.
                                            • nunez 5 months ago
                                              The 737-100 (and maybe the -200?) had a similarly busy cockpit, as the first examples were built when flight engineers were still required. Avionics simplified a lot since then, but the Concorde program died before it could get similar treatment.
                                              • thrance 5 months ago
                                                There are two in Toulouse, one you can walk into (the first prototype, actually). The place is called aeroscopia [1]. There's also an A380 prototype and a bunch of older planes.

                                                [1] https://www.aeroscopia.fr/

                                                • chasing 5 months ago
                                                  Also at the Intrepid Museum in NYC.
                                                  • schlupa 5 months ago
                                                    You can also visit one in Germany at the Technik Museum Sinsheim[1]. It has the advantage that it can be compared to the soviet counterpart Tupolev Tu-144 that is also exposed.

                                                    [1] https://sinsheim.technik-museum.de/en/

                                                    • gambiting 5 months ago
                                                      There's also one in Scotland in East Lothian, you can also go inside it:

                                                      https://www.nms.ac.uk/national-museum-of-flight/see-and-do/c...

                                                      • kweks 5 months ago
                                                        And (at least) two in Paris. One mounted on stilts at CDG2, which depending on how you taxi you may or may not see from the plane, and one just outside ORY, which is maintained by an association, and visitable.
                                                        • rixed 5 months ago
                                                          And one still in the Bourget museum?
                                                        • qingcharles 5 months ago
                                                          I lived right at the end of the runway there in Bristol and Concorde needed the whole length to land, so it would come in real low and shake all the loose stuff upstairs.
                                                          • ctippett 5 months ago
                                                            There's also one parked at London Heathrow airport. You can see it while taxiing.
                                                          • toephu2 5 months ago
                                                            It always saddens me that in the 1960s it took 7 hours to fly from NYC -> London, and today, 60 years later, it still takes 7 hours to fly from NYC -> London...

                                                            Apart from fuel efficiency improvements, there hasn't been much innovation in the commercial commercial aerospace industry, with the exception of Boom's supersonic passenger airplanes which is just now starting to become a reality.

                                                            • thfuran 5 months ago
                                                              There's been a ton of innovation in the space. It used to be seven hours hotboxing a melange of cigarettes while they lose your luggage, but now it's 7 hours of having your knees jammed up against the seat in front of you while they tell you that three grams of peanuts is a proper snack. It's a whole different experience.
                                                              • bruce511 5 months ago
                                                                It varies a lot depending on airline.

                                                                Top tip : if you are flying internationally avoid Uas airlines where possible. The US airlines are built around domestic flights. They treat international flights as "long domestic ".

                                                                By contrast some airlines are built around long-haul (international) flights, with domestic either not there at all, or just a feeder.

                                                                Don't get me wrong, economy is still economy. But an economy seat on Emirates is better than economy on United or Delta (well, last time I flew those anyway.)

                                                                Perhaps the biggest innovation though is seat-back entertainment. Done well, it makes a huge difference to long-haul flights.

                                                                • AnarchismIsCool 5 months ago
                                                                  Correction: while they helpfully wake you up in the middle of your redeye to tell you about a new exciting credit card offer only available to you in flight
                                                                  • sidewndr46 5 months ago
                                                                    You also get the complementary full body check for any unusual protrusions before flight, if you ask for it.
                                                                    • Ringz 5 months ago
                                                                      • lostlogin 5 months ago
                                                                        Wifi might be the best innovation.
                                                                      • BlandDuck 5 months ago
                                                                        Look at the bright side, at least flights today are still as fast as 60 years ago.

                                                                        For trains, you would be hard pressed to find a route that is not significantly slower today than 60 years ago.

                                                                        • lqet 5 months ago
                                                                          > For trains, you would be hard pressed to find a route that is not significantly slower today than 60 years ago.

                                                                          It took 64 years (until 1997) to again reach the 1933 speed of the Flying Hamburger [0] - 138 minutes from Hamburg to Berlin. Trains today need about 115 minutes.

                                                                          [0] https://en.wikipedia.org/wiki/DRG_Class_SVT_877

                                                                          • idlewords 5 months ago
                                                                            They are not; the 707 flew noticeably faster than modern airliners (525 knots cruise, compare to 485 knots for the Boeing 787).
                                                                            • jjk166 5 months ago
                                                                              Max cruising speed of 707-121 was 593 mph at 30,000 ft. Max Crusing speed of 787 is 593 mph at 35,000 ft.
                                                                              • WalterBright 5 months ago
                                                                                The cruise speed is selected for maximum fuel efficiency. The airplanes can fly faster, and do under special circumstances.

                                                                                Your gas car's maximally efficient speed is about 35 mph.

                                                                              • 5 months ago
                                                                                • blks 5 months ago
                                                                                  For USA, that is. In Europe speed has increased drastically.
                                                                                • chasing 5 months ago
                                                                                  I think there has been a ton of improvement in commercial flight — think safety, for example — but my understanding is that there has simply been no incentive to improve flight times. Customers aren’t willing to pay for it. Which sort of makes sense: Generally speaking flight time is less than half of the total door-to-door time of air travel.
                                                                                  • greazy 5 months ago
                                                                                    > Generally speaking flight time is less than half of the total door-to-door time of air travel.

                                                                                    Maybe for domestic flights but for international flights (especially if you live in Australia) it would improve the flying experience. I've noticed a big difference on my body when flying 8hr vs 12hrs.

                                                                                    It may not seem like a big difference but those extra 4hrs put a massive strain on your body and mind.

                                                                                    • lostlogin 5 months ago
                                                                                      If you live in New Zealand, you learn to suffer. A (dubious) upside is that you rarely circle long - after 18+ hours in the air, you're coming down.
                                                                                    • arp242 5 months ago
                                                                                      > there has simply been no incentive to improve flight times

                                                                                      It's more that you just run in to real limits of physics; many planes already fly at mach 0.8 to 0.9, and going faster than sound is always going to be difficult because of the sonic boom. Realistically, there just isn't that much you can do without solving that first, which is a difficult problem to solve in a practical way. And even if you do, the fuel efficiency is always going to make it much more expensive.

                                                                                      • WalterBright 5 months ago
                                                                                        Going faster means a lot more fuel consumption. Air doesn't like being violently shoved aside. In fact, it gets all hot about it :-/
                                                                                        • mrcsharp 5 months ago
                                                                                          > Customers aren’t willing to pay for it

                                                                                          I would be more inclined to travel overseas if travel times were shorter thus making me a more frequent customer and bringing the airlines more money.

                                                                                          • chasing 5 months ago
                                                                                            Would you be willing to pay 50% more for tix per flight? I think that’s the issue. And airlines have realized that, no: By-and-large people prefer low price over saving a few hours.
                                                                                        • WalterBright 5 months ago
                                                                                          > Apart from fuel efficiency improvements

                                                                                          Those have been huge, and are a primary driver for new airplane designs. The reason is simple. Back in the 80s, fuel was 40% of the operating cost.

                                                                                          The 757 came about because of new, more efficient engines and a more efficient wing. If my brain hasn't fully rotted away yet, it offered a 35% reduction in fuel costs.

                                                                                          The 737MAX was green-lighted because it offered a 15% improvement in fuel consumption. That's Big Money for the airlines.

                                                                                          • Spooky23 5 months ago
                                                                                            Trains are worse. I found a New York Central timetable from the 1930s. The morning train I take from Albany to NYC is 7 minutes longer (although it now goes to Penn station.
                                                                                            • snakeyjake 5 months ago
                                                                                              There has been a ~90% decrease since the 1960s in the cost to fly from NYC to London due, in large part, to mind-blowing technological innovations in materials, engines, and aerodynamics.
                                                                                            • neilv 5 months ago
                                                                                              Circa 2000, British Airways(?) did a competition for technical people/students, and the prize was... to get to fly on the Concorde. I remember thinking "big whoop", and didn't enter. Not knowing that the Concorde would soon never fly again.
                                                                                              • Jedd 5 months ago
                                                                                                I was fortunate to travel in one of these, back in 1996 - London to New York.

                                                                                                (BA was offering some sweet deals to staff at partner airlines, at about 10% of retail pricing.)

                                                                                                At the time there was no expectation that we'd regress, though had I been more generally aware I'd have noticed the lack of next-gen SST R&D during Concorde's operational lifetime.

                                                                                                I recall they flew one out to Sydney Australia in the mid 1980's, but I think appetite was quite low, probably from both regulators and small market size -- despite the obvious appeal (it's about 24h flight time still in conventional commercial passenger jets, to get to the antipodes).

                                                                                                • donavanm 5 months ago
                                                                                                  I believe Qantas will be offering Sydney to London direct on a newer A350 variant latter this year. Should be about 20hrs direct.

                                                                                                  Travel to europe is a bit of a pain in that layovers and scheduling can easily blow it out to 30+ hours today, especially if going to a secondary market in europe. It makes the ~14 hours overnight to the US west coast seem very reasonable in comparison.

                                                                                                  • Jedd 5 months ago
                                                                                                    That route's been touted for a while - and having done the SYD-LHR trip quite a few times, I'm not 100% confident it'd be a significant QoL improvement (except for business travellers).

                                                                                                    Pricing will be interesting to watch, in any case.

                                                                                                    As you note, a lot of the time cost is incurred for the 'last mile' part of that trip, so apart from the (tourist / comfort) benefits of splitting flights of that length, I could see it being much less appealing for travellers bouncing through London to get elsewhere into the continent.

                                                                                                • whartung 5 months ago
                                                                                                  It should be noted you can see the curvature of the earth in the photo.

                                                                                                  As I understand it, that was one of the perks of the Concorde in that in flew so high that the passengers could see this as well.

                                                                                                  • raldi 5 months ago
                                                                                                    I thought I remembered reading someplace respectable that the apparent curvature of the earth as seen from the surface or planes is actually just perspective, and would look indiscernible on a flat planet (or a huge one). But I don’t have a citation to share. Maybe it’s only true at sea level.
                                                                                                    • AnarchismIsCool 5 months ago
                                                                                                      IME the curvature isn't really discernible until far higher altitudes. Most of the "curve of the earth" shots you see are because someone stuck a go-pro on a hiball and a combination of haze and fisheye effect makes the earth look round. If you use a camera without the lens distortion it just looks like a normal horizon.
                                                                                                      • loloquwowndueo 5 months ago
                                                                                                        I wonder where you read that because it sounds like a very flat earther thing to say.
                                                                                                        • raldi 5 months ago
                                                                                                          “Visual daytime observations show that the minimum altitude at which curvature of the horizon can be detected is at or slightly below 35,000 ft, …Photographs purporting to show the curvature of the Earth are always suspect because virtually all camera lenses project an image that suffers from barrel distortion”

                                                                                                          https://opg.optica.org/ao/abstract.cfm?uri=ao-47-34-H39

                                                                                                          Another trick you can do: take this Concorde photo and use the rules of geometry to draw the rest of the circle, and look how small an Earth you’ve drawn.

                                                                                                      • idlewords 5 months ago
                                                                                                        The sky was also noticeably darker.
                                                                                                      • zeristor 5 months ago
                                                                                                        I remember at school at lunch time we’d see a Concorde fly overhead, just sort of got used to it.
                                                                                                        • rwmj 5 months ago
                                                                                                          Concorde used to fly over our house (landing at Manchester airport, I think?), and it was something of an event for our household of plane geeks, but happened fairly regularly.

                                                                                                          These days I see Airbus A380s taking off and landing from Heathrow over the house almost daily and that never ceases to amaze me, mainly that humans built something so enormous that can actually fly.

                                                                                                          • tetris11 5 months ago
                                                                                                            Used to fly over ours too (Gatwick flight path?), and I always remember that sharp screaming sound.

                                                                                                            I still watch the planes when I'm in the garden, but it's not quite the same

                                                                                                            • loloquwowndueo 5 months ago
                                                                                                              Remember the Hindenburg.
                                                                                                            • timthorn 5 months ago
                                                                                                              It marked the end of playtime at our school. We were 30 miles west of Heathrow and as it went overhead, still climbing from takeoff, it would have interrupted lessons.

                                                                                                              It was usually pretty punctual, but every now and then we got an extended break.

                                                                                                              • Theodores 5 months ago
                                                                                                                So there would be thirty or so in your class, another thirty in the class below and another thirty in the class above. I am sure you were a noisy bunch, particularly at playtime, much to the annoyance of other residents of the street.

                                                                                                                Now compare that annoyance level to that of the ninety or so special people on Concorde, or, more correctly, 'a' Concorde plane. You were thirty miles west of Heathrow, but I can remember being in South London and having to stop conversation for a few minutes for that stupid plane to screech overhead. Nowadays I learn that those were good times, to have that noise from miles away, making it impossible to hear the person next to me.

                                                                                                                Until Concorde was some tens of thousands of feet in the air, cruising sub-sonically, that stupid plane was ruining everyone's day. All for what, Tony Benn's ego, 'jobs' and being best buddies with the old enemy - the French.

                                                                                                                The need to be best buddies with the French was moot, after WW1 and WW2 it was clear that the UK and France were allies, at least in Europe.

                                                                                                                We were lucky that the USA were a bit passive-aggressive when it came to Concorde, people would have had that thing fly supersonic but it wasn't in the economic interests of Washington (DC and the state) to have that.

                                                                                                                Highlight of Concorde's career was Live Aid, bringing Phil Collins et al from the USA to Wembley so they could play both sides of the Atlantic, at the same event.

                                                                                                                I am sure that people that went on a 'jolly' on Concorde for that special anniversary had their money's worth and a time to remember, but most people on that plane were pointless wealthy people that lacked purpose. In the bigger scheme of things, not one single flight of that plane was really important, even if Joan Collins was aboard. Your playtime, somewhere near where The Office was filmed, was far more important, in the bigger scheme of things.

                                                                                                            • WalterBright 5 months ago
                                                                                                              When I was a kid, we lived near an AF base. I enjoyed the sonic booms, and was a bit perplexed at the animosity towards them. Thunder is a lot louder. My dad would laugh at my antics with a car, saying there was nothing like flying on the deck with the afterburner on.
                                                                                                              • rwmj 5 months ago
                                                                                                                I have a collection of back issues of Private Eye from the 1970s, and sonic booms seems to have been very much a live topic with the chattering middle classes at the time. In particular there are complaints that church windows [sic] had been cracked by a sonic boom, and there were other structural problems allegedly caused. I'm not sure how seriously to take the letters and articles, but you could see it was only a matter of time before supersonic flight would be banned over middle England.
                                                                                                                • WalterBright 5 months ago
                                                                                                                  Having lived in Kansas, the electric storms were much louder. I'd open the window to enjoy the booms. I'd see lightning travel from one horizon to the other.

                                                                                                                  The storms were great entertainment.

                                                                                                              • MisterTea 5 months ago
                                                                                                                A lot of family lived in Howard Beach, NYC just off the edge of JFK right under the flight path for the main runway. I have distinct memories of being in my grandmothers yard and hearing the Concords piercing roar as they passed for landing. I also remember being at a block party further south directly under the flight path and it was so horrifically loud I had to cover my ears from the ringing pain. They were absurdly loud vs the standard passenger jets. When the Concord was finally retired there were parties thrown all over that neighborhood. I lived not much further north and could hear them distinctly from my house as well but they were not disruptive. My uncle still lives in HB and the aircraft of today are much quieter and even my uncle recognizes that fact and appreciates it.
                                                                                                                • mhandley 5 months ago
                                                                                                                  Heathwow is 15 miles west as the crow flies from where I was at university in central London. When it took off flying away from us, you could clearly hear it over the London traffic. Amazing aircraft!
                                                                                                                  • elpocko 5 months ago
                                                                                                                    I hope only the kids got used to the mindblowing event of seeing an airplane in the sky, and the teachers kept running away, screaming in panic every day even after 10 years of it happening.
                                                                                                                  • nunez 5 months ago
                                                                                                                    As much as I appreciate being able to fly for relatively cheap, I think we can all agree that deregulation and fuel costs absolutely destroyed this kind of innovation for commercial air travel.

                                                                                                                    I wish I was old and well-off enough to take a flight on that majestic bird.

                                                                                                                    • happyopossum 5 months ago
                                                                                                                      > deregulation

                                                                                                                      No, hard disagree here - regulation is a big part of what killed supersonic flight the first time around.

                                                                                                                    • guenthert 5 months ago
                                                                                                                      "Meanwhile, the Concorde continued its effortless cruise toward New York’s JFK Airport."

                                                                                                                      i.e. it used only 4,800 US gallons per hour of fuel (a 747 burns around 3600 gallons/h). Not what I would label "effortless", but not nearly as bad as I expected.

                                                                                                                      • barrettondricka 5 months ago
                                                                                                                        There is a story about Concorde chasing a solar eclipse for an hour.

                                                                                                                        https://en.m.wikipedia.org/wiki/1973_Concorde_eclipse_flight

                                                                                                                        • Almondsetat 5 months ago
                                                                                                                          Seems strange that's the only photo. They never made test flights in pairs to monitor each other? And during these tests they didn't take any photos?
                                                                                                                          • themadturk 5 months ago
                                                                                                                            Well, the only photo released to the public at least.
                                                                                                                          • blks 5 months ago
                                                                                                                            It says that it was fastest airliner with 2.05 Mach, but Tu-144 was faster with 2.15 Mach
                                                                                                                            • hinkley 5 months ago
                                                                                                                              Somewhere an SR-71 pilot is definitely rolling his eyes.

                                                                                                                              Only publicity photo, surely.

                                                                                                                              • phire 5 months ago
                                                                                                                                The SR-71 might actually have a bit of a problem going slow enough.

                                                                                                                                As far as I can tell, it was never certified for a mach 2 cruise, normally accelerating right through it.

                                                                                                                                • hinkley 5 months ago
                                                                                                                                  Distance and a telephoto lens can fix a lot of that. If you're kilometers away going twice as fast you have a lot more time to snap a pic, versus being 500 meters away.

                                                                                                                                  They used these for surveillance so I assume the motion compensation on these things was state-secret levels of good.

                                                                                                                                  • phire 5 months ago
                                                                                                                                    The SR-71 can probably match speed.

                                                                                                                                    It's just that the performance tables in the manual (which has been released to the public) only go down to mach 2.2, so you are outside of the certified/documented regimen.

                                                                                                                                  • wiml 5 months ago
                                                                                                                                  • drpixie 5 months ago
                                                                                                                                    Yup. There must have been any number of photos taken by chase planes during development.
                                                                                                                                    • themadturk 5 months ago
                                                                                                                                      The question is, how many were taken at supersonic speed? What non-military aircraft could keep up with the Concorde at Mach-2? Only another Concorde.
                                                                                                                                      • drpixie 5 months ago
                                                                                                                                        Concorde development was a (UK & France) national project. They would have had easy access to military aircraft. Aircraft like the Lightning might only just have been able to intercept but would easily have observed pre-arranged tests.

                                                                                                                                        I wasn't on the engineering team ;) but apparently they planned 4000 hours of test flights. https://web.archive.org/web/20150316210132/http://aviationwe...

                                                                                                                                        It's almost inconceivable that the test flights would not have been closely recorded, especially the significant ones including trans-sonic and supersonic ops. Despite the best design and air-tunnel work, you'd expect that things would go wrong and you really want to learn as much as possible from any incidents/events.

                                                                                                                                        Unfortunately, all this happened well before the internet age, and so records and images are not so easily found :(

                                                                                                                                    • hammock 5 months ago
                                                                                                                                      Most of our fighters can pull a sustained Mach 2
                                                                                                                                      • sidewndr46 5 months ago
                                                                                                                                        "our" fighters? What military are you referring to?