Search found 487 matches

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by mxaxai
Sat Jul 21, 2018 9:57 am
Forum: Military Aviation & Space Flight
Topic: Blue Origin - Tests, Launches, Developments
Replies: 51
Views: 12779

Re: Blue Origin - Tests, Launches, Developments

And, for comparison, consider a list price to orbit on Falcon 9 with Dragon 2 at $20,000,000 per person. Again, for comparison, consider a reusable F9 launch @ $62,000,000 and 22 tons payload. Dragon 2 weighs some 6-7 tons, so if it wasn't limited by its own structures or volume, you could theoretic...

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by mxaxai
Sat Jul 21, 2018 9:42 am
Forum: Technical/Operations
Topic: What's next in airliner wing design?
Replies: 14
Views: 625

Re: What's next in airliner wing design?

The A350 features variable camber, i. e. the flaps extend or retract slightly in cruise depending on speed, altitude and weight. I don't know if other aircraft have introduced that yet but the 797 probably will. I also expect wing to move towards a more laminar design, as discussed in the A340 lamin...

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by mxaxai
Thu Jul 19, 2018 3:37 pm
Forum: Civil Aviation
Topic: HiFly takes delivery of first A380
Replies: 111
Views: 21879

Re: HiFly takes delivery of first A380

The same goes for Iberia. Willie Walsh already said that they are looking into the business case for some units for IB, but Airbus would have to lower the price (comparable to the BA issue). One more point that speaks against Iberia is the "slot restriction". I doubt that Iberia is really...

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by mxaxai
Thu Jul 19, 2018 2:10 pm
Forum: Civil Aviation
Topic: Farnborough Air Show 2018 - Boeing Order Thread
Replies: 189
Views: 81932

Re: Farnborough Air Show 2018 - Boeing Order Thread

Boeing Orders coming into the show https://pbs.twimg.com/media/Did5u8NW0AEmx_b.jpg https://twitter.com/thatjohn/status/1019917694307655686 The pic shows 20 x 767 orders and at the bottom it states "Lufthansa Cargo". I haven't seen any info on either of the two - can somebody fill me in? M...

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by mxaxai
Wed Jul 18, 2018 8:22 am
Forum: Technical/Operations
Topic: are 737-200 still safe to travel in
Replies: 35
Views: 5747

Re: are 737-200 still safe to travel in

Worrying or not, my question is purely technical. Are you saying bathtub curve does not apply? I would call that bullshit... Well mitigated - maybe. And regarding a piano - I heavily doubt that. I've flown a few times since last time I saw a piano - and that hints that my odds of getting hit by one...

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by mxaxai
Tue Jul 17, 2018 8:10 pm
Forum: Technical/Operations
Topic: are 737-200 still safe to travel in
Replies: 35
Views: 5747

Re: are 737-200 still safe to travel in

A more general question: a bathtub reliability curve is a common trend in many situations. Would that apply to planes, and how serious that wear out trend would be ? Stop worrying, you will be fine. You have more chance of dying from a falling piano than on a plane (true fact that). Worrying or not...

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by mxaxai
Tue Jul 17, 2018 7:46 pm
Forum: Technical/Operations
Topic: Airbus A340 Laminar Flow Demonstrator To Fly In 2017
Replies: 160
Views: 21708

Re: Airbus A340 Laminar Flow Demonstrator To Fly In 2017

Boeing has just pushed back a firm decision on the 797 until 2019 - 2020, EIS no earlier than 2025 - 2026. BCA CEO just said launch decision no later than end 2019 and EIS still by end 2015. You're free to put your own spin on that, but it'd be nice if you didn't say Boeing has made such a statemen...

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by mxaxai
Tue Jul 17, 2018 12:37 pm
Forum: Civil Aviation
Topic: Boeing Global Services ponders 777-300ER P2F program
Replies: 15
Views: 2135

Re: Boeing Global Services ponders 777-300ER P2F program

Some things to consider ... The A330-200F didn't sell too well. Many attribute this to the lack of a market, being squished between the 767F for regional and the 777F & 747F for long-haul services. The 777-300ERF would likely have less range than the 777-200LRF. The 777-200ERF didn't happen due ...

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by mxaxai
Tue Jul 17, 2018 12:34 pm
Forum: Technical/Operations
Topic: Airbus A340 Laminar Flow Demonstrator To Fly In 2017
Replies: 160
Views: 21708

Re: Airbus A340 Laminar Flow Demonstrator To Fly In 2017

Also interesting in relation to the 797 EIS timing. Or any A320 rewing for that matter. You don't some lainching and have this tech enter service a few years later. On the current A320 rewing debate that might imply that waiting too long with a conventional design now might make the time to return ...

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by mxaxai
Mon Jul 16, 2018 2:46 pm
Forum: Military Aviation & Space Flight
Topic: UK unveils new Tempest fighter jet model as replacement of the Typhoon
Replies: 36
Views: 2747

Re: UK unveils new Tempest fighter jet model as replacement of the Typhoon

Nice to see them reuse the WW2 naming and succession, tho.

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by mxaxai
Mon Jul 16, 2018 2:44 pm
Forum: Civil Aviation
Topic: United Airlines announces order for 25 E-175 and 4 787-9's
Replies: 54
Views: 11010

Re: United Airlines announces order for 25 E-175 and 4 787-9's

E175-E2 isn't in scope for any US carrier, it's overweight. Interesting. From my understanding of the scope clause, UA will only be able to put 70 seats on those E175s if it wants UAX to fly them. This should be similar to DL's recent order of CRJ-900s, which are also only getting 70 seats to repla...

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by mxaxai
Sun Jul 15, 2018 3:37 pm
Forum: Technical/Operations
Topic: Difference between saying "Roger" and your callsign?
Replies: 51
Views: 2638

Re: Difference between saying "Roger" and your callsign?

Alright, I see your meaning, but then the tower will also have different sectors like West or East. Maybe my example wasn't too great, but people also say that on unmanned frequencies as well. Listing the specific area (only one freq) AND the frequency being called on. I agree totally with the rest...

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by mxaxai
Sun Jul 15, 2018 9:25 am
Forum: Technical/Operations
Topic: Would a large prop plane designed today look the same?
Replies: 21
Views: 3352

Re: Would a large prop plane designed today look the same?

Valid points that will indeed delay hybrids, but I had in mind hybrids as a solution to noise curfews. Imagine LHR, LGB, etc., operating hybrids during noise curfew hours. The noise from a modern turbofan doesn't come from the core (much). The noise is from accelerating air in the engine overall, a...

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by mxaxai
Sun Jul 15, 2018 9:04 am
Forum: Military Aviation & Space Flight
Topic: UK to repalce AWACS
Replies: 43
Views: 2709

Re: UK to repalce AWACS

Politicians are asking for an open tender for the potential E-3D replacement. https://ukdefencejournal.org.uk/tender-for-e-3d-sentry-replacement-must-be-open-to-fair-competition/ Then there's this article from June with first rumors of the Wedgetail being considered. It does seem to have a clear pre...

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by mxaxai
Sat Jul 14, 2018 12:34 pm
Forum: Military Aviation & Space Flight
Topic: Slovakia to purchase Block 70 F-16s
Replies: 16
Views: 1326

Re: Slovakia to purchase Block 70 F-16s

Ironic, considering that the MiG-29 had its first flight after the F-16.

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by mxaxai
Sat Jul 14, 2018 8:03 am
Forum: Travel, Polls & Preferences
Topic: Aircraft types without any preserved examples
Replies: 43
Views: 2527

Re: Aircraft types without any preserved examples


I wonder if the UK (or anyone in the commonwealth) might eventually decide to put one of these in a museum. They were part of The Queen's Flight, now RAF.

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by mxaxai
Sat Jul 14, 2018 7:51 am
Forum: Technical/Operations
Topic: Electric Taxiing Solutions
Replies: 18
Views: 1233

Re: Electric Taxiing Solutions

If you used in-wheel solutions during landing, or the engines whenever they are at idle during descent and landing, to charge a small battery, you could achieve (nearly) zero-emissions. Additionally, the APU would be running anyway to provide hydraulics & air conditioning. They also have the ben...

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by mxaxai
Thu Jul 12, 2018 9:37 am
Forum: Technical/Operations
Topic: Airbus A340 Laminar Flow Demonstrator To Fly In 2017
Replies: 160
Views: 21708

Re: Airbus A340 Laminar Flow Demonstrator To Fly In 2017

Interesting update at https://www.flightglobal.com/news/articles/analysis-why-airbus-foresees-laminar-wings-on-next-448911/ ( free reg required ) The tests showed that Airbus can "relax the shape" of the wing and allow for "slightly larger tolerances" than previously thought, Fl...

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by mxaxai
Wed Jul 11, 2018 9:16 am
Forum: Travel, Polls & Preferences
Topic: Aircraft types without any preserved examples
Replies: 43
Views: 2527

Re: Aircraft types without any preserved examples

Baade 152 Dornier 728 This is the first time I've heard of the Baade 152. Fascinating aircraft. So I'll add: Gone: Airbus A300B1 Avro Arrow Baade 152 Boeing 314 Bristol Brabazon Dornier Do-X Junkers J-1 Martin M-130 Sikorski S-42 Threatened: Canadair CL-44 (1 heavily modified example semi-airworthy...

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by mxaxai
Wed Jul 11, 2018 7:57 am
Forum: Travel, Polls & Preferences
Topic: Aircraft types without any preserved examples
Replies: 43
Views: 2527

Re: Aircraft types without any preserved examples

Douglas DC-7B I'm not sure if any passenger versions still exist if any one know tell me There seems to be one at Charlotte, which was airworthy as recent as 2013 and, following an engine failure, now sits there. Not sure if anybody is looking after it or if it's properly on display there: https://...

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by mxaxai
Mon Jul 09, 2018 6:04 am
Forum: Travel, Polls & Preferences
Topic: Aircraft types without any preserved examples
Replies: 43
Views: 2527

Re: Aircraft types without any preserved examples

So we are at: Gone: Airbus A300B1 Boeing 314 Bristol Brabazon Dornier Do-X Junkers J-1 Martin M-130 Sikorski S-42 Threatened: Lockhed 1011 (though there is one preserved at Kansas City; additionally there is one in poor condition in Bangkok https://www.planespotters.net/photo/758965/hs-axe-thai-sky-...

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by mxaxai
Sun Jul 08, 2018 9:16 pm
Forum: Travel, Polls & Preferences
Topic: Aircraft types without any preserved examples
Replies: 43
Views: 2527

Aircraft types without any preserved examples

Hey, I recalled a thread on here about aircraft models without any remaining flying examples, though I cannot find it right now. Got me wondering: Which types have entirely disappeared? Obviously some prototype-only models are among that list, for example: Junkers J-1 Dornier Do-X Among the models w...

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by mxaxai
Wed Jul 04, 2018 12:45 pm
Forum: Military Aviation & Space Flight
Topic: F-35 news thread
Replies: 443
Views: 30411

Re: F-35 news thread

In place of a new thread I am posting this here given I consider the F-35 to be the favourite for the selection. Based on capability, cost and Singapore being a security member of the program they have much to gain from operating the jet. No idea if Singapore will end up ordering or even announcing...

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by mxaxai
Wed Jul 04, 2018 8:36 am
Forum: Civil Aviation
Topic: Airbus Is in Talks With British Airways on More A380s
Replies: 561
Views: 100634

Re: Airbus Is in Talks With British Airways on More A380s

Imo, what Airbus can do is to force suppliers to lower their prices or threaten to move things in-house. and if they could wave a magic wand, and do that, there'd be no such thing as suppliers and subcontractors in the industry. A380, everything built "in house"..... double the price. how...

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by mxaxai
Thu Jun 28, 2018 3:20 pm
Forum: Technical/Operations
Topic: Effect of worldwide ADS-B
Replies: 6
Views: 1148

Re: Effect of worldwide ADS-B

zeke wrote:
Worldwide PBCS

Care to elaborate? Wouldn't ADS-B be part of PBCS?

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by mxaxai
Thu Jun 28, 2018 2:07 pm
Forum: Military Aviation & Space Flight
Topic: James Webb Telescope Launch Delayed Until 2020
Replies: 29
Views: 2313

Re: James Webb Telescope Launch Delayed Until 2020

Off topic and technical question. Why hasn't the Moon become a major space and astronomy base? Telescopes there could be serviced forever. Various parts and pieces of landing rockets, telescopes etc stored in the junkyard and reused. Musk wants to go to Mars, so getting to the Moon would have to be...

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by mxaxai
Thu Jun 28, 2018 12:17 pm
Forum: Technical/Operations
Topic: Effect of worldwide ADS-B
Replies: 6
Views: 1148

Re: Effect of worldwide ADS-B

It won't help situations like MH370 when the transponder was disabled. True but it does alert ATC faster that an aircraft has vanished from radar, be it due to a disabled transponder or due to a crash. So instead of waiting a couple of hours until the aircraft is expected to reach the next radar, A...

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by mxaxai
Thu Jun 28, 2018 11:27 am
Forum: Technical/Operations
Topic: Effect of worldwide ADS-B
Replies: 6
Views: 1148

Effect of worldwide ADS-B

Aireon intends to offer worldwide ADS-B coverage via their modules aboard the Iridium-NEXT constellation. They intend to start this year once all satellites have been launched. https://aireon.com/ Where would the largest improvements to safety and economy be, if any? Or will most ATC providers conti...

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by mxaxai
Thu Jun 28, 2018 11:22 am
Forum: Military Aviation & Space Flight
Topic: James Webb Telescope Launch Delayed Until 2020
Replies: 29
Views: 2313

Re: James Webb Telescope Launch Delayed Until 2020

Delayed until 2021 now. Failed a vibration test, where they lost 70 bolts. Not all have been found yet. Also some cables were done wrong and they damaged the thrusters during testing. Probably need more money than planned (> $10 billion total). Good thing they found out these issues now, and not af...

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by mxaxai
Thu Jun 28, 2018 9:32 am
Forum: Military Aviation & Space Flight
Topic: James Webb Telescope Launch Delayed Until 2020
Replies: 29
Views: 2313

Re: James Webb Telescope Launch Delayed Until 2020

Delayed until 2021 now. Failed a vibration test, where they lost 70 bolts. Not all have been found yet. Also some cables were done wrong and they damaged the thrusters during testing. Probably need more money than planned (> $10 billion total).

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by mxaxai
Thu Jun 28, 2018 9:29 am
Forum: Military Aviation & Space Flight
Topic: Kawasaki P-2 and C-2 for New Zealand?
Replies: 55
Views: 8043

Re: Kawasaki P-2 and C-2 for New Zealand?

Quoting a ferry range is a useless metric as there is no payload attached to that config. Going by this, without refueling only the A400M and the C-2 can fly there, find out that the weather is too bad, and return home safely, with the C-2 having a lot more margin and presumably more payload as wel...

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by mxaxai
Wed Jun 27, 2018 8:39 am
Forum: Military Aviation & Space Flight
Topic: Kawasaki P-2 and C-2 for New Zealand?
Replies: 55
Views: 8043

Re: Kawasaki P-2 and C-2 for New Zealand?

The big decider will be if non stop round trip capability to Antarctica will be required or not. The distance between Christchurch and McMurdo Station/Scott Base is approx 3900km. The capabilities of the respective aircraft for that range are the following, KC-390 - 5000km range with 14 ton payload...

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by mxaxai
Sun Jun 24, 2018 2:51 pm
Forum: Technical/Operations
Topic: Gear Before Flaps::PHL to CMH
Replies: 20
Views: 3055

Re: Gear Before Flaps::PHL to CMH

I've seen some take-offs delay gear retraction by a bit, typically after taxiing to the far end of the runway, downhill. I think that was done to cool the brakes prior to stowing the gear in the wells, where heat would dissipate poorly.

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by mxaxai
Tue Jun 19, 2018 12:18 pm
Forum: Civil Aviation
Topic: LH A340 damaged by pushback tug fire at FRA
Replies: 194
Views: 35186

Re: LH A340 damaged by pushback tug fire at FRA

I would imagine that any shop that performs D-checks can scrap/recycle an aircraft. Maybe not as cheap as a proper scrapping operation but better than letting the plane rot on the tarmac. LHT at FRA should be able to do the job. Or give them another two old A343 and expect one almost new A340 rollin...

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by mxaxai
Sat Jun 16, 2018 2:18 pm
Forum: Military Aviation & Space Flight
Topic: ESA - Tests, Launches, Developments
Replies: 13
Views: 1279

Re: Successful first test of the Ariane 6 Vulcain 2.1 engine

I have no more information on performance than you do, but I believe the engine will retain similar thrust and Isp. Apparently most of the (re)design effort went into making it cheaper and faster to produce. Redesigned nozzle, use of 3D printed parts, discontinued usage of internal igniters and no ...

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by mxaxai
Fri Jun 15, 2018 10:40 am
Forum: Technical/Operations
Topic: Shape of fuselage
Replies: 45
Views: 3841

Re: Shape of fuselage

Look at that circular cross section! https://upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Boeing_advanced_blended_wing_body_concept_2011.jpg/512px-Boeing_advanced_blended_wing_body_concept_2011.jpg Boeing advanced blended wing body concept 2011 [Public domain], by NASA/The Boeing Company, from...

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by mxaxai
Thu Jun 14, 2018 8:46 am
Forum: Military Aviation & Space Flight
Topic: New Chinese Medium Transport Aircraft
Replies: 8
Views: 560

Re: A400M Update

To me it looks a little smaller than an A400, but looks as though the cabin height should be fairly high. if that really is the fuselage of the y-20 looks appear to be deceptive: https://en.wikipedia.org/wiki/Xi%27an_Y-20#Specifications_%28estimated%29 66t max payload ( 220t MTOW ) I think it is in...

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by mxaxai
Wed Jun 13, 2018 7:33 pm
Forum: Military Aviation & Space Flight
Topic: A400M Update
Replies: 817
Views: 108128

Re: A400M Update

I've got more excuses: Maybe American marketing & bashing experts are as active in Indonesia as they are in this forum. You clearly have no idea of what influences Indonesia. If American marketing and bashing experts are so good why is Indonesia flying flankers, why are they looking at acquirin...

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by mxaxai
Mon Jun 11, 2018 3:37 pm
Forum: Military Aviation & Space Flight
Topic: A400M Update
Replies: 817
Views: 108128

Re: A400M Update

How many C130J's has the USAF ordered in the last 5-10 yrs? Here's $10B in C-130J spending lasting til 2026: https://www.upi.com/Defense-News/2016/08/22/Lockheed-Martin-gets-max-10B-contract-for-Air-Force-C-130J-production/6361471871530/ And if you haven't noticed, FR just bought 4 and DE just boug...

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by mxaxai
Sun May 13, 2018 1:09 am
Forum: Civil Aviation
Topic: Airbus to announce decision on selling planes to Iran over the coming days
Replies: 190
Views: 22121

Re: Airbus to announce decision on selling planes to Iran over the coming days

Dantepel : I think if things continue that way that's exactly what will happen. Not something drastic, but non US companies avoiding US components as much as possible, more banks and financial institutions outside the dollar, etc. I think it's instructive to consider that 787 has landing gear from ...

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by mxaxai
Sat May 12, 2018 4:02 pm
Forum: Technical/Operations
Topic: Could regional aircraft be more like buses?
Replies: 18
Views: 1770

Re: Could regional aircraft be more like buses?

Try to estimate how much airframe acquisition cost would contribute towards the fare (hint - ERJ is about $15M, bus is about $400K), how much energy (fuel) would cost and guess how much insurance would be for a vehicle which can literally fall out of the sky at any second. There are about 80,000 bu...

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by mxaxai
Sat May 12, 2018 5:19 am
Forum: Civil Aviation
Topic: Airbus to announce decision on selling planes to Iran over the coming days
Replies: 190
Views: 22121

Re: Airbus to announce decision on selling planes to Iran over the coming days

False. This is the US enforcing US law on US soil. US companies, of which there are many represented on an Airbus aircraft, will not be allowed to sell ANYTHING to Iran. The only thing this has to do with Airbus is that the final product has Airbus written on it. I’d be in your camp if there wasn’t...

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by mxaxai
Sat May 12, 2018 4:15 am
Forum: Technical/Operations
Topic: Could regional aircraft be more like buses?
Replies: 18
Views: 1770

Re: Could regional aircraft be more like buses?

Hmm. I like the idea. I think it is possible in the long term. I was thinking about that myself. If you look at MCI in Kansas City it was actually built that way. The distance from the door to the gate is very very short. So short that there is barely any room for TSA screening. If you were able to...

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by mxaxai
Fri May 11, 2018 4:33 pm
Forum: Technical/Operations
Topic: Could regional aircraft be more like buses?
Replies: 18
Views: 1770

Could regional aircraft be more like buses?

Before you say "NO!", please give it a thought. Many employees commute each day by bike, car, bus or train. Very few people commute by plane. I would argue that this can change by providing the right equipment: One would need a plane. Perhaps around 50 seats (like a bus) but perhaps larger...

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by mxaxai
Fri May 11, 2018 6:23 am
Forum: Civil Aviation
Topic: Cathay Pacific in Germany
Replies: 19
Views: 5445

Re: Cathay Pacific in Germany

TBH Germany, and Europe in general, outside of the capitals (and Frankfurt) is difficult for many long-haul airlines. Even more so from east- and south-east Asia. SQ used to fly have only FRA and that Munich flight with the Manchester tag-on. QF completely withdrew. The only Asian airlines to fly to...

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by mxaxai
Thu May 10, 2018 6:26 am
Forum: Civil Aviation
Topic: Aviation potentials in Africa
Replies: 3
Views: 438

Re: Aviation potentials in Africa

All of it. Though some areas, like South Africa, Egypt and Namibia are already fairly well served for the population they have. Central and western africa has huge potential if they stopped being a mess one day. Eastern africa is covered by Ethiopian and Kenya airlines though further traffic growth ...

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by mxaxai
Wed May 09, 2018 2:35 pm
Forum: Civil Aviation
Topic: Iran - Boeing deal
Replies: 188
Views: 22593

Re: Iran - Boeing deal

The question is, would Trump be willing to punish US companies that sell parts to Airbus if Airbus continues to deliver aircraft to Iran? For example, Pratt & Whitney or General Electric. Trump has said sanctions are being re-imposed, so he's willing to inflict punishment on US companies. I don...

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by mxaxai
Wed May 09, 2018 12:53 pm
Forum: Civil Aviation
Topic: Iran - Boeing deal
Replies: 188
Views: 22593

Re: Iran - Boeing deal

A boost for Airbus and RR, if a country or airline already feels unloved by the USA. Without reading the fine print, because the USA only is exiting a binding agreement, unilaterally decisions to re-impose embargoes may not carry the same weight and influence. We live in interesting times. The ques...

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by mxaxai
Wed May 09, 2018 8:23 am
Forum: Civil Aviation
Topic: Iran - Boeing deal
Replies: 188
Views: 22593

Re: Iran - Boeing deal

Iran has a good relationship with the west...just not with Trump's USA. Only Trump and his paymasters in Tel Aviv and Riyadh claim Iran was breaking the deal. Trump just raised the price of used aircraft and gave a boost to Russian and Chinese aircraft companies. Lots of good airliners parked aroun...

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by mxaxai
Wed May 09, 2018 12:31 am
Forum: Civil Aviation
Topic: Iran - Boeing deal
Replies: 188
Views: 22593

Re: Iran - Boeing deal

I think Boeing and Airbus will be fine. Trump is only doing what he thinks is good for the interests of the US. the consequence of this will be higher oil prices which is going to be good for the global economy. I also think that Iran will be forced to reconsider its policies and come to its senses...

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