[...] When you wrote that you can a cite/link for all your numbered claims, I hoped you were saying you had someone in the know writing something like "The F-35B requirements compromised the best shape we wanted for the F-35a". That seems to me to be true, but I cannot find a relevent cit...
Jump to postSpeaking of watering holes -- don't forget the paper bag that holds the bottle.
Jump to postdmcreif wrote:So a group of House Republicans wants to rename IAD after Trump. This all just reads of "something that's going to die in committee".
High tide ? If I am reading it correctly, NOAA suggests the mean range of the tide is only 1.1 ft in Baltimore. I think that makes sense, it is quite far up the Chesapeake Bay from the open Atlantic. But it probably is some detail like that I am missing because we can see with our own two eyes that...
Jump to postI find some of the posts here scary. I hope they do not reflect the discussions actually going on at Boeing about these management changes. Building airplanes is not like building trucks or furniture or apartment buildings. You must must MUST have a passion for aviation. Of course you need the fina...
Jump to postI find some of the posts here scary. I hope they do not reflect the discussions actually going on at Boeing about these management changes. Building airplanes is not like building trucks or furniture or apartment buildings. You must must MUST have a passion for aviation. Of course you need the finan...
Jump to postThis will the ruin of my favorite bypass of the whole Baltimore mess—Rt 301 and 50 into Annapolis. You LIKE the Bay Bridge?! Ewwww. [...] What?! You don't enjoy the Bay Bridge? Not even Eastbound on a Friday afternoon? :bouncy: Actually, if you stop at Annapolis after 301/50 you don't need to deal ...
Jump to postWhat exactly is the purpose of the XB-1? Its nothing like the planned Overture. To test technology that will be used on the Overture Which would be? Tech for M 1.7 is all high TRL already. Still 100% vaporware IMHO (OK, 99.99% for effort) until they build a serious engine or fly supersonic for 4 hrs.
Jump to postYes, it has been studied before but, as you say, nobody has tried to do it operationally. The idea is not totally crazy. With one major exception it could be done with existing equipment. The major exception is the "flight control system", intended as the system that would maintain automa...
Jump to post[...] A couple of Chinooks, Mi-26 or Sikorsky CH-53's working in tandem might also do the trick.. I know it's been studied, and tested at very small scale, but I don't think anyone's tried to operationally do a lift with multiple helicopters. Blades have been moved by a single helicopter before. He...
Jump to postDoesn't Boeing have a program to bring back these retired employees (boomers and otherwise) with institutional technical knowledge as part-time contractors/consultants?
Jump to post8-9 hours in a ULCC-configured XLR would probably require heavy sedation and chiropractor intervention at the destination. This might affect the expected load factor. You underestimate people's desire or necessity to travel despite limited means, especially in countries much lower average income th...
Jump to post8-9 hours in a ULCC-configured XLR would probably require heavy sedation and chiropractor intervention at the destination. This might affect the expected load factor.
Jump to postI called it, the airline hadnt power cycled the aircraft... while very possible, not fixing such a known bug tells a lot about the OEM. Perhaps they need a 48 hour “forced restart” logic whereby the aircraft will warn pilots it is going to reset in X minutes once the MLG are on the ground, the park...
Jump to postI hope the cause(s) are determined ASAP. Especially whether or not whatever happened could happen again on takeoff or landing.
Jump to postThis appeared earlier today on the US CNN web site, with link from the home page: 'I want to get off the plane.’ The passengers refusing to fly on Boeing’s 737 Max -- https://edition.cnn.com/travel/boeing-737-max-passenger-boycott/index.html . Nothing terribly new for a.net readers. The story of Ed ...
Jump to postIn addition to the weight the RISE is very large compared to current engines. If it was mounted on an A320 for example the landing gear would need to be lengthened to the point that it would be unable to fit in the current fuselage without a complex stowing mechanism. [...] No, why? If the actual d...
Jump to postIt's hard to imagine that an open rotor would be mounted under a low wing. For a ducted turbofan, it makes sense. The heavy engine unloads the bending moment on the wing root in flight and the engine nacelles themselves act as anti-shock bodies. But for an UDF, the diameter is so much larger that i...
Jump to postWith the BIG caveat that Airbus knows that every pixel of the picture will be scrutinized to death, so they are going to show us only what they want us to see, the tail seems quite small, especially the horizontal tail. A small horizontal tail may indicate that they have extended the morphing capabi...
Jump to postA380 hands down for comfort.
777 OK.
I haven't tried the A350.
In the end, the market will decide. At the end of the day, if Boeing manages to build safe enough planes (whatever "enough" means), it will survive and possibly thrive. If not, the flying public will notice, start avoiding Boeing planes, and it will be the beginning of the end for Boeing ...
Jump to postIn the end, the market will decide. At the end of the day, if Boeing manages to build safe enough planes (whatever "enough" means), it will survive and possibly thrive. If not, the flying public will notice, start avoiding Boeing planes, and it will be the beginning of the end for Boeing a...
Jump to postWell they are saying it is "pilotless" which is different from "autonomous". So I am thinking that like drones that the military has extensive use with, the aircraft has remote piloting capability options that can be engaged. As well as live monitoring feeds for ATC communicatio...
Jump to postIt doesn't have to be all or nothing. Either you can fly a full 777 or A35K autonomously in scary conditions or you can't fly anything. Fully autonomous flight is certainly possible today. Airbus has clearly demonstrated this on an A350 in a video: the conditions seemed quite benign and there were t...
Jump to postwilliam wrote:Google Conrail and Amtrak...................Government and innovation do not belong in the same sentence, paragraph, or post.
Thanks for all the replies. Very interesting. I've learned something new.
Jump to postSilver lining of COVID: my business related air travel (West Coast and Italy/UK from the Washington, DC, area) is essentially down to zero. I can PowerPoint people to death from the comfort of my home (mostly) or my office (sometimes). Because of this huge carbon footprint reduction, I feel zero gui...
Jump to postThe CNN web site has an article that mentions the Point Merge System: https://edition.cnn.com/travel/airplane-holding-patterns-explainer/index.html I didn't know that this system existed. Here is a link from the Eurocontrol web site that explains it: https://www.eurocontrol.int/concept/point-merge I...
Jump to postThe only problem with tilt rotors is that the only example on service is a disaster. Which from an admin perspective makes betting on the next on not being a disaster is a dumb bet. I wouldn't necessarily say it's a disaster. Rather, that it's a heavy compromise. It's an airplane that can hover, an...
Jump to postThe one major thing you are missing in this whole topic is the actual aircraft. Did you even read the article? Your responses seem to suggest that the current aircraft (which are designed for 2 pilot crew) will remain exactly the same but with one less pilot. That is not the case, the whole idea is...
Jump to postSince someone mentioned AI, the issue with AI is that it's basically interpolation on steroids. If the conditions for which it's being used are generally contained in the training data, then it works well. If not, it becomes extrapolation, and extrapolation is riskier than interpolation. Sometimes i...
Jump to postHigh speed trains are already fully automated as it is physically impossible for a train driver to respond timely at those speeds. The only reason why there is a train driver is because the public doesn’t feel comfortable to step in a train without a person up front… Tiny difference between trains ...
Jump to postI’m pretty sure most US rail is two-crew. If automation is so perfect, why do we any train crews? The damned train is only one dimensional. High speed trains are already fully automated as it is physically impossible for a train driver to respond timely at those speeds. The only reason why there is...
Jump to postI'm surprised that there isn't a marketplace for Airbus NB delivery slots. A delivery slot for June 2024 is valued $X, one for December 2024 is valued $Y, and so on. Priced daily. One could also bundle 50-100 slots and break the bundle into shares to be sold on some market. I'm sure someone would co...
Jump to post@astuteman: great post. Thanks for taking the time to write it.
Jump to postSpeaking of which, can any aircraft structures expert (I'm not, at least professionally) comment on the influence of the presence/absence of the door plug on the load paths in that area of the fuselage? It was way up-thread, but someone with direct knowledge noted that the plug is effectively part ...
Jump to postYes, but that would not replicate how the door works, and would be a different certification process. It is NOT a door, it is a plug. Like if your car does not come with traction control option the dash may have a blank off panel where the switch was supposed to be. If the plug was installed with 3...
Jump to postLongyearbyen (LYR)
It's probably going to be on the expensive side, but look for it on a map and you'll see why I recommend it. Two or three days is really all you need. It could be the trip of a lifetime. Very easy to reach.
PepeTheFrog wrote:[...]
BOS-FCO is about 4,100 nm, for that range the payload would be restricted to about 21-22 tonnes.
[...]
Is the XLR really going to be an improvement from the LR? Heard murmurs that JetBlue can’t plan to use it in several EU cities it wanted to serve from US east coast, and are looking to maybe trade up to wide body instead Even mentioned in this article https://samchui.com/2023/07/22/airbus-a321xlr-f...
Jump to postThere is talk that the EU may delay its decision on Lufthansa taking over ITA until mid 2024 https://www.ch-aviation.com/portal/news/135681-eu-may-delay-ita-lufthansa-verdict-to-mid-2024-reports How long can ITA last before it needs more money ? Will the Italian Govt donate (yes, donate - it won't ...
Jump to post[...] UK MoD report update, this tine on the effects of mass casualties on rebuilding the Russian army; https://www.businessinsider.com/it-could-take-russia-10-years-replenish-army-capabilities-2023?r=US&IR=T [...] " The Ministry of Defence estimates a timeline of five to ten years for Rus...
Jump to postLooks like a bit of PIO, main gear touchdown(s) were not overly hard I’d be mostly about the aggressive pitch down and hard nosewheel touchdown while the main gear off the ground That was exactly my first thought -- PIO. Trigger seemed to be the left wing dip at 0:27. Does anybody know if the angul...
Jump to postAlways have the lasagna. Maybe not always https://www.mirror.co.uk/sport/football/lasagnegate-tottenham-arsenal-food-poisoning-24061126 How was the old joke: "Heaven is where the police are British, the cooks are French, the mechanics German, the lovers Italian and it’s all organised by the Sw...
Jump to postThese are the 11 winners of the downselect for the HSVTOL program. https://evtol.news/news/air-force-picks-11-companies-for-high-speed-vtol-program Good luck finding the next generation C-130J. Of note: none of the 11 winners has ever gone beyond building prototypes, and most not even that. The obvi...
Jump to postGood luck recruiting talented employees now...
Jump to postAny C-130 replacement will not look like a tilt-rotor, for a variety of technical reasons that we can discuss in the "Technical" forum if anyone is interested. Trying to make an airplane hover, or to make a helicopter go fast leads to lots of engineering complexity and compromises. Also, t...
Jump to post[...] I'd expect that the purpose of the TTBW demonstrator is to explore not only the performance benefits of such a high aspect ratio wing, but also stability and control and ditching; all of which need to be understood in advance of providing the means of compliance for certification. Flutter is ...
Jump to postCan anybody who knows (and can share) please provide some basic facts? How many people are we talking about, roughly? 5? 50? 500? What type of background do they have? Are all or most of them engineers, or there are also marketing, PR, finance, legal types, for example? And what do these people typi...
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