Search found 222 matches

by mxaxai
Wed Aug 15, 2018 9:52 pm
Forum: Military Aviation & Space Flight
Topic: F-35 news thread
Replies: 482
Views: 33303

Re: F-35 news thread

Ozair wrote:
Was probably a boring exercise as, if they were configured for full stealth, both aircraft likely struggled to find each other...

I wonder if they ended up in WVR dogfighting, with neither getting a missile lock on the other. Certainly not boring if that was the case. :spin:

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by mxaxai
Wed Aug 15, 2018 7:34 pm
Forum: Civil Aviation
Topic: Updated: QX employee steals and crashes Q400 near SEA
Replies: 682
Views: 86459

Re: Updated: QX employee steals and crashes Q400 near SEA

The public in general, and in this case the pilot's union in particular, seems to have a deep seated fear of a medical professional having the power to end their career, even if/when doing so would probably save their lives and the lives of many around them. For the majority, even if they are minim...

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by mxaxai
Wed Aug 15, 2018 3:23 pm
Forum: Civil Aviation
Topic: Airbus Zephyr breaks longest flight record by 11 days
Replies: 12
Views: 1701

Re: Airbus Zephyr breaks longest flight record by 11 days

estorilm wrote:

I'd imagine it could have stayed up there for much much longer.

Indeed. I wonder what the limiting factor is. Except for occasional scheduled checks there would be no reason for it to land.

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by mxaxai
Wed Aug 15, 2018 12:08 pm
Forum: Technical/Operations
Topic: Should Airport employees have mental evaluations before starting work?
Replies: 67
Views: 3138

Re: Should Airport employees have mental evaluations before starting work?

No. Mental evaluations are costly and don't necessarily prevent these types of things from happening. There are people who can pass a mental evaluation who still could snap at any time. Not to mention that you will end up with a plethora of false positives. Even if only 1 in 1000 tested is a false ...

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by mxaxai
Mon Aug 13, 2018 10:18 pm
Forum: Civil Aviation
Topic: Updated: QX employee steals and crashes Q400 near SEA
Replies: 682
Views: 86459

Re: Updated: AS employee steals and crashes Q400 at SeaTac

monitored, live cockpit video of RONs and other idle a/c on ground. If department stores and office buildings can live monitor shelves of tchotchkes and empty nighttime hallways, operators can do it for planes on ground. Much better than PKI, 2FA, etc. And you get video of any perps. The video syst...

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by mxaxai
Mon Aug 13, 2018 5:02 pm
Forum: Civil Aviation
Topic: Trans-Atlantic Berlin
Replies: 69
Views: 7143

Re: Trans-Atlantic Berlin

All US majors went through chapter 11 and now have a cost base comparable to AC Rouge. AC never was in the luxurious position to shed of much of their cost (mostly employees and retirement funds) through such a process. Also the offers in Y on Rouge and the US3 is very comparable IMHO. It's not so ...

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by mxaxai
Mon Aug 13, 2018 12:55 pm
Forum: Civil Aviation
Topic: So what’s Iran going to do now ?
Replies: 114
Views: 10350

Re: So what’s Iran going to do now ?

I mean there's really no alternative for them is there? There really isn't any Russian or Chinese planes the equal of A or B. All modern aircraft contain at least some US content. In fact, almost all modern technology contains some US content one way or another, which is why US sanctions are so pow...

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by mxaxai
Mon Aug 13, 2018 12:02 pm
Forum: Technical/Operations
Topic: Should Airport employees have mental evaluations before starting work?
Replies: 67
Views: 3138

Re: Should Airport employees have mental evaluations before starting work?

Can you even begin to comprehend the logistics of an operation like this? At my local airport AMS there are already thousands of people with airside access, and we're hardly the biggest airport in the world! Martijn Yup. We are talking about a truly vast program here. There are other, simpler ways ...

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by mxaxai
Sat Aug 11, 2018 1:06 pm
Forum: Civil Aviation
Topic: Updated: QX employee steals and crashes Q400 near SEA
Replies: 682
Views: 86459

Re: Updated: AS employee steals and crashes Q400 at SeaTac

From the Seattle Times article: ... An exchange between Rich and the controller not long before the plane crashed, perhaps the final exchange, was recorded by Aviation journalist Jon Ostrower at 8:47 p.m. and posted to his Air Current website. “I feel like one of my engines is going out or somethin...

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by mxaxai
Sat Aug 11, 2018 12:53 pm
Forum: Technical/Operations
Topic: Aspect ratio vs span loading in induced drag calculations
Replies: 4
Views: 312

Re: Aspect ratio vs span loading in induced drag calculations

W = L Your lift coefficient cl uses the wing area as reference surface. It also is a very much geometrically defined coefficient, so for a given aerofoil shape and a given weight (W=L), speed and density you will need a certain wing area. The only remaining variable is how you distribute this area....

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by mxaxai
Sat Aug 11, 2018 10:01 am
Forum: Civil Aviation
Topic: Updated: QX employee steals and crashes Q400 near SEA
Replies: 682
Views: 86459

Re: Updated: AS employee steals and crashes Q400 at SeaTac

According to the approximate times in the article this guy was in the air for an hour and a half. Thats crazy! Eatonville is closer to Mt Rainier than Puget Sound. Im curious if his whole flight path will be known. It's crazy that a Q400 that wasn't refueled after the last flight took off and flew ...

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by mxaxai
Sat Aug 11, 2018 9:52 am
Forum: Technical/Operations
Topic: Lift loss caused by spoilers
Replies: 7
Views: 920

Re: Lift loss caused by spoilers

Using simple logic, wouldn't the loss of lift correlate to the amount of span covered by the spoilers? Ergo, if the spoilers are 20% of the length of a straight wing, they will result in something like 20% loss of lift? Tapered wings would be a bit different obviously, but same basic principle, the...

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by mxaxai
Thu Aug 09, 2018 5:27 am
Forum: Technical/Operations
Topic: Can a plane be maintained to fly indefinitely?
Replies: 35
Views: 2771

Re: Can a plane be maintained to fly indefinitely?

I thought Basler had the DC-3 TCDS? The only DC-4 not destroyed in WW2 was a VIP airframe surrendered to military use, so I think the type is done. As noted, many historical aircraft are experimental. Most WW2 aircraft are. If an individual wants to buy a type, good for them. Lightsaber I'm confuse...

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by mxaxai
Wed Aug 08, 2018 8:41 am
Forum: Technical/Operations
Topic: Lessons every pilot must learn
Replies: 13
Views: 1231

Re: Lessons every pilot must learn

You forget that the gear was retracted, as well. He probably realized that the second he touched down and his reaction was, what do you do with a bad landing? When in doubt, you maintain controlled flight and go around. It did look like his initial climb out could have been a little flatter because...

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by mxaxai
Tue Aug 07, 2018 7:18 am
Forum: Technical/Operations
Topic: Airbus A330-243 seat configuration of 330 seats (1 class economy)
Replies: 3
Views: 600

Re: Airbus A330-243 seat configuration of 330 seats (1 class economy)

Could you please say how in that case it would be possible to determine rows with extra leg capacity. I tried to search tourist reports of that flights, only clue I have found is that image https://cs10.pikabu.ru/post_img/big/2018/07/04/10/1530724060167988132.jpg as you can see the row 28 is the la...

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by mxaxai
Tue Aug 07, 2018 7:10 am
Forum: Technical/Operations
Topic: Can a plane be maintained to fly indefinitely?
Replies: 35
Views: 2771

Re: Can a plane be maintained to fly indefinitely?

But does not prevent the aircraft from continuing to fly, as shown by Northrop Gumman's BAC 1-11s that were only retired in the last year. Admittedly as test beds flying under experimental tickets, but large planes continuing to be flown after the TCDS was surrendered. The FAA have kept the BAC 1-1...

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by mxaxai
Sun Aug 05, 2018 9:47 am
Forum: Civil Aviation
Topic: AA booted a Cellist from the Aircraft (did not allow the Cello on a paid ticket)
Replies: 170
Views: 15696

Re: AA booted a Cellist from the Aircraft (did not allow the Cello on a paid ticket)

There is plenty of blame to go around, but the sob story from the passenger is unnecessary and overly dramatic. That seems to be a recurring theme with these type of stories. Airlines might be better off just increasing their list of banned items to include cellos and other musical instruments and ...

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by mxaxai
Sat Aug 04, 2018 2:32 pm
Forum: Technical/Operations
Topic: Two Crew in Cockpit Rule Ending
Replies: 62
Views: 5651

Re: Two Crew in Cockpit Rule Ending

If they are hell-bent on doing something, it will get done. Just the sheer size of the remaining pilot would allow them to overpower the cabin crew member. Just the sheer need to personally interact with, and overpower, another human being to go through with their plan prevents many potential suici...

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by mxaxai
Fri Aug 03, 2018 9:18 pm
Forum: Civil Aviation
Topic: 2010 Monterrey A300 crash: Alpha floor protection & trim?
Replies: 25
Views: 4843

2010 Monterrey A300 crash: Alpha floor protection & trim?

http://avherald.com/h?article=42a18e75&opt=0 Simon was so friendly to find, and translate, the final report. Apparently, the A300's alpha floor protection kicked in as a reaction to decaying airspeed and increasing pitch. However, the excessive nose-up trim for the situation, that had been set p...

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by mxaxai
Fri Aug 03, 2018 9:09 pm
Forum: Military Aviation & Space Flight
Topic: Stratolaunch‘s Carrier Aircraft Production
Replies: 162
Views: 34424

Re: Stratolaunch‘s Carrier Aircraft Production

The only operational small to medium sized US launchers seem to be the Pegasus -which is already air-launched-, the Minotaur-C (based on the Pegasus) and the new Electron; plus soon perhaps the Vector-R. Others include the European Vega, the Indian PSLV (both of which are rather heavy, though) and t...

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by mxaxai
Fri Aug 03, 2018 8:49 pm
Forum: Technical/Operations
Topic: Can a plane be maintained to fly indefinitely?
Replies: 35
Views: 2771

Re: Can a plane be maintained to fly indefinitely?

Well, yes, it's just a lot of work, and I believe that it hasn't ever been done. Even in an extensive restoration, think Lufthansa FW-200, you would reuse some parts. There are some vintage planes without any original parts but these are usually considered replicas. This question came up with the G...

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by mxaxai
Fri Aug 03, 2018 1:21 pm
Forum: Travel, Polls & Preferences
Topic: Innovations in boarding???
Replies: 71
Views: 5116

Re: Innovations in boarding???

And I agree with those being last on the plane - who wants the privilege of sitting longer on the plane? I wait until close to last to board, except for those days when my kids were small. In the past few months I had two not too pleasant experiences by boarding last: On one flight, as others have ...

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by mxaxai
Fri Aug 03, 2018 1:01 pm
Forum: Travel, Polls & Preferences
Topic: Safe airlines around Cambodia, Vietnam, Malaysia?
Replies: 34
Views: 3693

Re: Safe airlines around Cambodia, Vietnam, Malaysia?

Laos is a wonderful place to visit, and the airport is a tiny little thing compared to nearby ones. There is an expansion in place however. It's just so difficult to get to, since most flights only go to their immediate neighbours. There isn't even a non-stop to Singapore. Lao Airlines isn't exactl...

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by mxaxai
Fri Aug 03, 2018 11:48 am
Forum: Technical/Operations
Topic: Can a plane be maintained to fly indefinitely?
Replies: 35
Views: 2771

Re: Can a plane be maintained to fly indefinitely?

Every single part of an aircraft can be replaced, in principle. There no principle about it. It has been done with enough time. Well, yes, it's just a lot of work, and I believe that it hasn't ever been done. Even in an extensive restoration, think Lufthansa FW-200, you would reuse some parts. Ther...

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by mxaxai
Thu Aug 02, 2018 12:09 pm
Forum: Civil Aviation
Topic: Bombardier wins approval for 90-seat Q400, eyes more orders
Replies: 45
Views: 7787

Re: Bombardier wins approval for 90-seat Q400, eyes more orders

Where are the extra seats? On the roof? There is a dummy seat map in Bombardier official marketing materials. Apparently they also aim for it to be 103 seaters!! https://goo.gl/images/rRf77P But only if you're not carrying any bags: https://aviationdoctor.files.wordpress.com/2016/02/q400-brochure.jpg

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by mxaxai
Thu Aug 02, 2018 10:03 am
Forum: Technical/Operations
Topic: Can a plane be maintained to fly indefinitely?
Replies: 35
Views: 2771

Re: Can a plane be maintained to fly indefinitely?

Lets say money was no factor here, could an aircraft (say an MD80 or something similar) be continuously maintained to fly past its designated life cycles? Or would it get to the point where no amount of maintenance could keep a plane flying? wear/tear to the aircraft skin, engine parts becoming una...

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by mxaxai
Thu Aug 02, 2018 8:04 am
Forum: Civil Aviation
Topic: Hi Fly A380 operations thread 2018
Replies: 231
Views: 21234

Re: HiFly takes delivery of first A380

The configuration is 12 First / 60 Business / 399 Economy... I guess four passengers will have a big grin on their face... ;-) As far as I know Thomas Cook does not have a proper business class. No, but they have a 'premium' section. I'm guessing the 'premium' folks will be put in business on the A...

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by mxaxai
Wed Aug 01, 2018 9:45 pm
Forum: Technical/Operations
Topic: Supersonic Business Jet Engines
Replies: 20
Views: 1242

Re: Supersonic Business Jet Engines

There were built quite a lot of subsonic jets with zero bypass. Yes, inefficient and loud. JT8D has bypass ratio of 0,96. And it is installed on 727, 737 and DC-9 all the way to MD-80 (only MD-90 has higher bypass). Kuznetsov NK-321 has bypass ratio of 1,4, and it is on Tu-160 and Tu-144, both of w...

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by mxaxai
Wed Aug 01, 2018 6:39 am
Forum: Military Aviation & Space Flight
Topic: USAF Considering New Build F-15X
Replies: 87
Views: 5034

Re: USAF Considering New Build F-15X

I would expect that getting more F-22's operational is better than purchasing more F-15's but if the competition is between F-15 and F-35, isn't the F-35 rather poorly suited for the ANG role? Its top speed is much lower than the F-15's (M1.6 vs M2+) and it can't really make use of its large intern...

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by mxaxai
Tue Jul 31, 2018 8:33 pm
Forum: Technical/Operations
Topic: Nose wheel Brakes on Airliners
Replies: 129
Views: 7686

Re: Nose wheel Brakes on Airliners

The main wheel brakes are effective enough.... In the words of the great SlamClick. The last thing he’d see after applying maximum brakes was the paint on the fuselage flying past the cockpit window. Just found the source, albeit in a quote by our venerable StarlionBlue: http://www.airliners.net/fo...

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by mxaxai
Tue Jul 31, 2018 3:08 pm
Forum: Military Aviation & Space Flight
Topic: USAF Considering New Build F-15X
Replies: 87
Views: 5034

Re: USAF Considering New Build F-15X

I would expect that getting more F-22's operational is better than purchasing more F-15's Not from a cost stand point. The tooling have been placed in storage and the line have been shut down. Note that Boeing also had a hand in building the F-22 (they build the wings). All this talk may have come ...

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by mxaxai
Tue Jul 31, 2018 1:30 pm
Forum: Military Aviation & Space Flight
Topic: USAF Considering New Build F-15X
Replies: 87
Views: 5034

Re: USAF Considering New Build F-15X

I would expect that getting more F-22's operational is better than purchasing more F-15's but if the competition is between F-15 and F-35, isn't the F-35 rather poorly suited for the ANG role? Its top speed is much lower than the F-15's (M1.6 vs M2+) and it can't really make use of its large interna...

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by mxaxai
Sat Oct 14, 2017 10:28 pm
Forum: Military Aviation & Space Flight
Topic: Germany Considers Tornado Replacement
Replies: 874
Views: 81161

Re: Germany Considers Tornado Replacement

If Germany doesn't want to join the F-35 party, the F-15 and F/A-18 are their best bet for the next 15-20 years. Whether or not Nationalistic pride blinds them from doing so is another matter. There is next to nothing either F-15 or F/A-18 offer that the Eurofighter cannot. Especially looking into ...

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by mxaxai
Thu Oct 12, 2017 3:19 pm
Forum: Civil Aviation
Topic: LH buys majority of Air Berlin
Replies: 271
Views: 41160

Re: LH buys Air Berlin

In the moment it is difficult to define what LH bought. They bought parts of Air Berlin that included 81 airplanes and 3,000 of 8,000 staff according to the article. That leaves some frames and Air Nikki and LGW, frames belonging to LGW seems to be included in the 114 frames of Air Berlin. Another ...

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by mxaxai
Mon Oct 09, 2017 2:09 pm
Forum: Civil Aviation
Topic: Updated: Air Berlin to cease operations
Replies: 966
Views: 162377

Re: Air Berlin has filed for insolvency

Latest News is that AB will cease ops on Oct 29th, however Niki and LGW will cotinue to operate. No Details yet whether there will be a trasition to LH and EZY The exclusivity of talks with LH and EZYwill end Thursday this week, if no agreeents have been negotiated until then, the available parts w...

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by mxaxai
Thu Oct 05, 2017 10:19 am
Forum: Military Aviation & Space Flight
Topic: Are western air forces to reliant on the F35?
Replies: 25
Views: 3501

Re: Are western air forces to reliant on the F35?

When the design is right it often corners the market. The F-4 is a good example, used initially as a naval aircraft, transitioned to Air Force and was exceptional as an export, especially given it is still in use today. If we go by stats alone the F-35 exceeds all the aircraft it has been designed ...

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by mxaxai
Wed Oct 04, 2017 2:24 pm
Forum: Military Aviation & Space Flight
Topic: Are western air forces to reliant on the F35?
Replies: 25
Views: 3501

Are western air forces to reliant on the F35?

Looking into past air force setups and some historical conflicts, we often see shortcomings of certain platforms emerge. Most of the time, these are mitigated by employing a variety of models. Today, however, the jack-of-all-trades-F35 is set to become the only major airborne weapons platform for ma...

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by mxaxai
Wed Oct 04, 2017 2:14 pm
Forum: Military Aviation & Space Flight
Topic: A400M Update
Replies: 819
Views: 109740

Re: A400M Update

Funnily enough the SAAF rated the C160 better than the C130 during the 20 year Border War. I think it really depends on what you use for which mission. We can easily sort some of the modern transporters by size, and therefore capability. On the low end we have the C235 and the C-5 on the other. For...

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by mxaxai
Fri Sep 15, 2017 8:05 am
Forum: Technical/Operations
Topic: Rolls Gearbox Hits Record Power Level
Replies: 20
Views: 3819

Re: Rolls Gearbox Hits Record Power Level

sized to power the biggest versions of the approximately 25,000 lb. to 110,000 lb. thrust class UltraFan family In other words, RR is considering the UltraFan for anything between A319 to 777 size - which could potentially lead to the 1st widebody GTF, or to a MOM application. Calling UltraFan an e...

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by mxaxai
Fri Sep 08, 2017 5:13 pm
Forum: Military Aviation & Space Flight
Topic: North Korea and nukes
Replies: 78
Views: 6795

Re: North Korea and nukes

Why the Arctic? Why not into outer space? Presumably because (a) the rockets are not able to even enter a stable orbit, let alone leave earth and (b) a detonation high in the atmosphere or just outside of it, up to the van-Allen belt, can cause strong EMP's with potentially much higher damage. Nobo...

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by mxaxai
Sun Sep 03, 2017 8:22 pm
Forum: Civil Aviation
Topic: Embraer Hopes Pinned on New Scope Clause in 2019-22
Replies: 137
Views: 13434

Re: Embraer Hopes Pinned on New Scope Clause in 2019-22

But none of the next-gen regionals fulfill the US scope or have other issues. MRJ90 - too heavy. E175 - too heavy. SSJ - current gen + russian. Dash8 - prop. ATR - prop. CRJ - no reengine in sight. ARJ - you're kidding, right? CSeries - nearly mainline, far too heavy. - Well, it was said that there...

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by mxaxai
Fri Sep 01, 2017 11:19 am
Forum: Civil Aviation
Topic: Embraer Hopes Pinned on New Scope Clause in 2019-22
Replies: 137
Views: 13434

Re: Embraer Hopes Pinned on New Scope Clause in 2019-22

The E175 simply doesn't work at mainline economics, especially once the price of oil increases. Nothing to do with oil prices. For that matter, the mainline carriers buy the fuel for the regionals. It's labor prices that make RJs uneconomical at mainline. Mainline unions rather outsource those plan...

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by mxaxai
Thu Aug 31, 2017 11:03 pm
Forum: Civil Aviation
Topic: QF changes SYD-DXB-LHR back to SYD-SIN-LHR from 25th March 2018
Replies: 125
Views: 20268

Re: QF changes SYD-DXB-LHR back to SYD-SIN-LHR from April 2018

A key part of the deal was QF flying its Europe passengers to DXB and EK taking them from there to Europe (not just a shopping stop in DXB). That is scrapped. This deal has become now what QF pilots would describe as outsourcing though code-share. QF uses its corporate sales machinery to sell ticke...

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by mxaxai
Thu Aug 31, 2017 10:57 pm
Forum: Civil Aviation
Topic: Embraer Hopes Pinned on New Scope Clause in 2019-22
Replies: 137
Views: 13434

Re: Embraer Hopes Pinned on New Scope Clause in 2019-22

I don't see any possible way the current scope restrictions are relaxed. This would be a huge concession for mainline pilots and with record profits there is no incentive or need for concessions. A lot of the current 70-seat scope allowances were concessions during the post 9-11 airline market cras...

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by mxaxai
Tue Aug 29, 2017 1:55 pm
Forum: Civil Aviation
Topic: Ryanair: "Five years from now there will be just five European airlines
Replies: 77
Views: 13399

Re: Ryanair: "Five years from now there will be just five European airlines

No, there is no way only 5 airlines remain. 5 large airlines, perhaps. And even that will not happen within the next 5 years. The U.S. is down to four with national networks (AA, DL, UA and WN) and two super-regionals (AS and B6) at about 1/3 the size of those four, plus a few carriers too small to...

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by mxaxai
Tue Aug 29, 2017 1:38 pm
Forum: Civil Aviation
Topic: Updated: Air Berlin to cease operations
Replies: 966
Views: 162377

Re: Air Berlin has filed for insolvency

Why should Germania pay for what they can have for free after the dust has settled. Germania operates mainly from Airports which are not slpt restricted, they have aircraft available Update on Germania: They are going to court to stop the government providing the credit to AB until the EU commissio...

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by mxaxai
Tue Aug 29, 2017 12:36 pm
Forum: Civil Aviation
Topic: Updated: Air Berlin to cease operations
Replies: 966
Views: 162377

Re: Air Berlin has filed for insolvency

⋅ Investors can submit offers until 15.09.2017 ⋅ As of today, only Lufthansa, Condor (Thomas Cook), Easyjet and Mr. Wöhrl are in serious talks. ⋅ Ryanair marketing's Kenny Jacobs is less enthusiastic about buying AB than his boss. If at all, they'd be interested in tak...

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