Airliners.net

rmilstre

Re: Uncommanded thrust reversal deployment

Thank you, GalaxyFlyer, for the great insights. Learned something important today that I hadn't considered (as a layperson) before: TR deployment speed v. engine throttle response speed and the potentially devastating effects that difference can have on wing/aircraft performance. And that's somethin...

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rmilstre

Re: I have a question (job)

It's all about economics, eventually. Robots are generically high-capital investment, low operating cost devices, while humans are low(er) investment, higher operating cost devices. So you'll use a robot when you have a task or series of tasks that requires a lot of repetition; you'll use a human wh...

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rmilstre

Re: Remember smoking in the cockpit ?

Not in the cockpit, but this thread reminds me of a flight taken in early childhood, from Exeter to Guernsey. I was too young to know the aircraft type, but it was a prop and it was 2+2 seating. And the port side of the aircraft was non-smoking, while the starboard side of the aircraft was smoking. ...

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rmilstre

Re: Cargo Pilots: a different breed of airmen?

+3. Thanks, 747Whale! Lookin' forward to the book!

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rmilstre

Re: What would have made the MD11 safer?

Under extreme loads, when your wingbox fails before your gear fuse pins fail, you've got a (bigger) problem.... I doubt weakening the gear connection points is the right answer, so an analysis of how to improve the wing box's tolerance to these extreme landing loads might be in order. Well, might ha...

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rmilstre

Re: Textile bomproof 'fly-bag' - in what stage the project is?

That article is thin on details. It may well be possible to contain an explosion in a suitcase-sized device, but a larger container, such as a luggage pallet, is going to be more difficult. I imagine the device inherently becomes spherical as it struggles to contain an explosion, so the question tha...

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rmilstre

Re: THE Problem With United FAs. Even I'm Fuming At This!

Do not blame the FA too quick. She is entitled her opinion and express accordingly. We can not blame her for expressing her feelings and opinions. Whether her feelings or opinions is right or wrong, it is not for us to judge. We may express our own opinions on how we feel about the opinion but we s...

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rmilstre

Re: Airbus vs Boeing Strategy

The future will be defined by money, specifically the difference between what the airlines will pay to provide a specific flight and what the airline's customers are willing to pay for that flight. This has defined the move to a la carte pricing (particularly in economy), 10-abreast seating on a mac...

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rmilstre

Re: Alaska Air A321 Neo More to Love Livery Revealed!

AS asked in their post "what's missing?". Nothing, if this is the new A321 glider model...

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rmilstre

Re: Which mystery European airline other than VS bought 15 Boom XB-1?

Hmm. We've been debating on A.net about whether the Boeing 787 accounting block should be 1400 frames or 1500 frames and whether they can every recoup the development cost if they (eventually) sell enough units. The point here isn't whether that number is 1400 or 1500, is simply to note that when yo...

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rmilstre

Re: UAL strands 15-year-old child in Hartford

I've been reading this thread, aghast. Couple of thing stick out: 1) On what planet does it make sense for alliance members to have different policies related to ages of minors? Do Canadian kids mature earlier than American kids, so they can safely travel on AC at an earlier age than they can on UA?...

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rmilstre

Re: DC-10 Evac Slide/Wing

From the NTSB accident report: "AS Flight 30H entered the water, the wing-mounted engines were flooded and stopped running; however, the centerline engine continued to run at full reverse thrust." Link: http://libraryonline.erau.edu/online-full-text/ntsb/aircraft-accident-reports/AAR85-06....

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rmilstre

Re: Can anyone kindly tell me what this is? [United 757]

I had an experience like this on a SQ flight to HKG. Everything fine at the beginning of the flight, but a couple of hours out of HKG, i happened to notice a seal flapping away in the breeze. I told the FA, who told the cockpit crew. One of them came, took a look, told me not to worry and returned t...

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rmilstre

Re: UofM Basketball team plane off runway @YIP

Wow is right. Per NTSB via AvHearld, the controls moved normally - implies to me that any controls checks during taxi would have passed. But the elevator was stuck nose-down. I'm guessing the first iota of knowledge that these poor pilots had was when they tried to rotate and the aircraft simply fai...

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rmilstre

Re: PW1100G Combustion Chamber Failure

Companies at this level bring technologies to a readiness level before incorporating them into an engine, and that includes manufacturing readiness. Depends on your definition of "this level". My company, albeit in a different industry, invests billions in R&D with the presumption tha...

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rmilstre

Re: Why Is There Only One Rudder in an Aircraft?

Ideally, since a rudder (and the fin/vertical stabilizer) controls yaw moments and the horizontal stabilizer controls pitch moments, you'd want a (smaller) rudder/fin/stabilizer on the top of the fuselage and an equivalent one on the bottom. But that's gonna make your tailstrike problems essentially...

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rmilstre

Re: PW1100G Combustion Chamber Failure

Why did they take thousands of orders when they didn't have a process to actually manufacture it? Well, that one's pretty simple: you know you're developing a new engine & you know that you'll need to develop new/advanced manufacturing techniques to deliver it. You've got to put it on the marke...

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rmilstre

Re: Highest Paid Airline Pilots?

A lot of it is a balance as well ... how much do you actually have to work to make those numbers? I make $250K a year, working nine days a month. I get two months vacation a year and my profit sharing cheque this year (not included in the 250K) is enough to buy a new Lariat FX4. (But I won't, becau...

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rmilstre

Re: West Air CRJ Crashed in Northern Sweden

80 seconds. A bit less than a minute and a half. From "perfectly fine" to dead. That is a very sobering thought. If you're a pilot, you should introspectively ask yourself, "what would *I* do in this situation?"

-Rob

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rmilstre

Re: What Happened to N901NK

Hmmm. If I ran an airline that just bought a $40 million airplane that just broke & I couldn't get it fixed more-or-less immediately, I would be rather, shall we say, unhappy. I am very curious about what the maintenance/support contracts for these Pure Power engines look like. I would like to t...

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rmilstre

Re: VX762 diverts to DFW

Quoting AvHerald: "While turning around to return to Dallas the crew requested immediate vectors to Dallas Fort Worth and the longest runway available with ILS, ATC advised to expect runway 13R, the crew queried the runway and pointed out, they wanted to divert to Fort Worth not to Love, the co...

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rmilstre

Re: Question About Expected Fuel Consumption Calculation

Soomeyz, are you asking for the fuel burn penalty across a fleet that is tankering half of their flights? That is, they're flying out with as much fuel as they can land with (which you should know from your data) and flying back with as little fuel as possible (keeping legal for diversions, etc.)? T...

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rmilstre

Re: How Often Are Planes Weighed?

How is this for margin... A c130 was loaded kg instead of pounds and it still flew.....(2.2 x max load) this is from incident reports. Wow. That's more margin than generally planned for in engineering. I bet that plane had very odd flight characteristics, even given the OEW of the aircraft didn't c...

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rmilstre

Re: How Often Are Planes Weighed?

First order, assuming a linear system (which isn't really true, but is probably close enough in the first order), your 7K overweight flight that should have taken of in 8500 feet (per your number) is gonna take of in ~8600 feet. No worries, mate!

-R

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rmilstre

Re: How Often Are Planes Weighed?

I'll avoid answering your question, but focus instead on the risks involved. In your example, you're (potentially) concerned about being 7000 pounds overweight. The lightest listed MTOW for a B777 on wikipedia (YMMV) is 545,000 pounds. In this example, then, you're talking about 1.3% overweight. Fro...

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rmilstre

Re: Southwest Airlines flight 3472 suffers uncontained engine failure

The NTSB report was very factual (thanks for the link!). It merely said the fan blade was found broken. It stopped short of claiming the inlet separation was due to the blade separation. My money is actually on fr8mech's pneumatic overpressure event. I guess we'll see when NTSB releases more data. R...

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