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by mxaxai
Fri Apr 09, 2021 1:19 pm
Forum: Military Aviation & Space Flight
Topic: F-15X has no mission!
Replies: 104
Views: 5255

Re: F-15X has no mission!

Seem like the have not converted all of the plane fabrication to their new digital manufacturing design. If and when the do that, the price should come down some more. bt I'm not sure how much there is to gain through Boeing's new digital approach. It has been my impression that the largest benefit...

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by mxaxai
Fri Apr 09, 2021 12:13 pm
Forum: Civil Aviation
Topic: Wizz Air flight operations chief resigns after "bad apples" comment
Replies: 23
Views: 4042

Re: Wizz Air flight operations chief resigns after "bad apples" comment

Interflug74 wrote:
what an... bad Apple

More of a rotten fruit basket. All the base managers who followed his orders, who enjoyed terminating "that guy who's a pain in your ass", who lied on behalf of their boss.

This must be the "Wizz culture" he talks about.

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by mxaxai
Fri Apr 09, 2021 9:08 am
Forum: Military Aviation & Space Flight
Topic: Second tier advanced fighter projects news and discussion
Replies: 176
Views: 39329

Re: Second tier advanced fighter projects news and discussion

Photo: https://www.usnews.com/dims4/USNEWS/53a0d77/2147483647/thumbnail/970x647/quality/85/?url=http%3A%2F%2Fmedia.beam.usnews.com%2F23%2F13ba7829b33a61b8dfc725175deca3%2Ftag%3Areuters.com%2C2021%3Anewsml_LYNXMPEH380FH%3A12021-04-09T073349Z_1_LYNXMPEH380FH_RTROPTP_3_SOUTHKOREA-INDONESIA-FIGHTER-JET....

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by mxaxai
Wed Apr 07, 2021 2:01 pm
Forum: Technical/Operations
Topic: APU "Electric" aircraft
Replies: 8
Views: 780

Re: APU "Electric" aircraft

It's a concept that's heavily studied in current (academic) research. Compare the aircraft on the lower left in this study with a single large "APU" in the tailcone: https://horizon-magazine.eu/article/how-hybrid-electric-and-fuel-aircraft-could-green-air-travel.html https://horizon-media....

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by mxaxai
Wed Apr 07, 2021 11:41 am
Forum: Military Aviation & Space Flight
Topic: Space technology that can help us preserve our environment on Earth
Replies: 19
Views: 975

Re: Space technology that can help us preserve our environment on Earth

But there is one drawback. The lifespam of these microsatellites is not really large. It's a rather minor drawback. These small satellites can be mass produced. By replacing them every few years, the manufacturer can implement improvements regularly. It also means that less radiation hardening is r...

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by mxaxai
Wed Apr 07, 2021 9:44 am
Forum: Civil Aviation
Topic: jetBlue's London In flight service details
Replies: 79
Views: 11377

Re: jetBlue's London In flight service details

The system they use now is satellite based and provided by Viasat. I'm curious though if the new aircraft have special equipment vs the current fleet, I believe the satellite Wi-Fi and TV goes out of range once you leave the US, such as the off shore routes to the Caribbean from the Northeast. If B...

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by mxaxai
Wed Apr 07, 2021 8:54 am
Forum: Military Aviation & Space Flight
Topic: Space technology that can help us preserve our environment on Earth
Replies: 19
Views: 975

Re: Space technology that can help us preserve our environment on Earth

You mean satellites like these https://www.planet.com/ ? https://www.washingtonpost.com/wp-apps/imrs.php?src=https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/6S5OB5UTKII6XKW4V54HAGRQZI.jpg&w=916 https://www.washingtonpost.com/technology/2021/04/06/small-satellites-growth-spa...

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by mxaxai
Tue Apr 06, 2021 2:46 pm
Forum: Civil Aviation
Topic: Air France KLM News and Discussion Thread - 2021
Replies: 251
Views: 49881

Re: Air France KLM News and Discussion Thread - 2021

Great deal for AF. Only 18 slots at Orly and 0 at CDG? hopefully this will be enough to get the flying baguettes through this crisis. CDG has more than enough capacity that any new entrants could easily start flying there. Orly on the other hand is more restricted (mostly for political reasons but ...

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by mxaxai
Mon Apr 05, 2021 4:30 pm
Forum: Technical/Operations
Topic: When specifying aircraft range?
Replies: 15
Views: 1522

Re: When specifying aircraft range?

Range is not a single fixed value. All aircraft have a payload-range-curve that is published in the airport planning document. Here's an example for the A340-300: https://i.imgur.com/iQAXmtv.png https://www.airbus.com/content/dam/corporate-topics/publications/backgrounders/techdata/aircraft_characte...

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by mxaxai
Mon Apr 05, 2021 1:10 pm
Forum: Military Aviation & Space Flight
Topic: Space technology that can help us preserve our environment on Earth
Replies: 19
Views: 975

Re: Space technology that can help us preserve our environment on Earth

Satellites are sensors, a necessary component to solve a problem but not sufficient by itself. They're great for worldwide surveying, gathering data from remote places 24/7. With satellites, you can easily determine the worldwide ice coverage or changes in sea level. They can also be used to determi...

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by mxaxai
Thu Apr 01, 2021 8:45 pm
Forum: Military Aviation & Space Flight
Topic: Embraer KC-390 News and Discussion Thread
Replies: 225
Views: 57756

Re: Embraer KC-390 News and Discussion Thread

https://www.businessinsider.com/video-s ... ?r=DE&IR=T
-->

kitplane01 wrote:
Wow. I wonder if this is the largest airplane to ever buddy-refuel

That would probably be the KC-10. https://www.businessinsider.com/video-s ... ?r=DE&IR=T

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by mxaxai
Thu Apr 01, 2021 7:52 pm
Forum: Military Aviation & Space Flight
Topic: Canada To Allow KC-46 Into Tanker Competition
Replies: 9
Views: 1096

Re: Canada To Allow KC-46 Into Tanker Competition

Revelation wrote:
I think it's all pretty incredible.

After a closer look, I feel like the 'spirit of cooperation' is the most surprising aspect of it all. Who would've thought that this is still possible in this day and age.

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by mxaxai
Thu Apr 01, 2021 7:09 pm
Forum: Military Aviation & Space Flight
Topic: Canada To Allow KC-46 Into Tanker Competition
Replies: 9
Views: 1096

Re: Canada To Allow KC-46 Into Tanker Competition

Revelation wrote:
The aircraft can detect, avoid, defeat and survive threats enabling it to operate safely in medium-threat environments.

Are they ordering the version with 9G and AMRAAM capability? Perhaps even a gun pod?

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by mxaxai
Thu Apr 01, 2021 4:27 pm
Forum: Civil Aviation
Topic: Highly infectious new Coronavirus variant primarily affecting Airliners
Replies: 37
Views: 4774

Re: Highly infectious new Coronavirus variant primarily affecting Airliners

ScottB wrote:
Do not forget continued insistence that Southwest is about to order the A220!

Here's how the A220 can still win the Southwest competition

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by mxaxai
Thu Apr 01, 2021 2:35 pm
Forum: Technical/Operations
Topic: A/C type behaviour in turbulence
Replies: 26
Views: 3200

Re: A/C type behaviour in turbulence

The 787 and A350 have active damping as standard, and I think the entire Airbus FBW range has maneuver load alleviation, which uses the spoilers to unload the wing during turbulence. The A380 has this feature very visible with quite large independent deflections of the ailerons to automatically cou...

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by mxaxai
Thu Apr 01, 2021 7:04 am
Forum: Civil Aviation
Topic: RR begins building worlds largest jet engine
Replies: 96
Views: 16841

Re: RR begins building worlds largest jet engine

Maybe a twin jet A380? The engine is designed for variants up to 100,000 lbs of thrust. That's comparable to the Trent XWB-97, the GE-9X and the GE-90. These are all found on regular large widebodies, the A350-1000, the 777-9 and 777-300ER. If you wanted to develop a twin A380 variant, you'd need m...

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by mxaxai
Thu Apr 01, 2021 12:58 am
Forum: Military Aviation & Space Flight
Topic: Tanker/AWACS/VIP/CRAF runway ops?
Replies: 4
Views: 819

Re: Tanker/AWACS/VIP/CRAF runway ops?

UA857 wrote:
So do tankers e.g. KC-135 and KC-10 only carry fuel and no cargo onboard?

Not on the same flight, usually. All multirole tankers, that includes the KC-135 and KC-10, can take some cargo on the main deck and some, like the A330MRTT, even have a lower deck cargo hold.

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by mxaxai
Wed Mar 31, 2021 11:17 am
Forum: Military Aviation & Space Flight
Topic: F-15X has no mission!
Replies: 104
Views: 5255

Re: F-15X has no mission!

I thought it was a military program. If this is about unemployment insurance or corporate subsidy then spend the money on other Boeing products like the KC-46s or Apaches or MQ-25s or T-7As or .... The other Boeing products are built in other places, with parts from other suppliers. Additionally, t...

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by mxaxai
Wed Mar 31, 2021 1:04 am
Forum: Civil Aviation
Topic: AA B38M Pitch Trim Issue 3/29/21
Replies: 41
Views: 11763

Re: AA B38M Pitch Trim Issue 3/29/21

AvHerald reporting B38M geez how many more abbreviations must we endure?? Why cant it just say 738max?? If it wasnt obvious in the title this would seem like a totally new type of plane! It's the official ICAO code for the Boeing 737-8 MAX. The corresponding IATA code is 7M8. The same system that's...

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by mxaxai
Tue Mar 30, 2021 5:28 pm
Forum: Civil Aviation
Topic: RR begins building worlds largest jet engine
Replies: 96
Views: 16841

Re: RR begins building worlds largest jet engine

I am not sure it can go on A350 and at least we agree that it can't fit on 787. A350 has ground clearance for up to 140" engines but A380 has clearance for up to 180" so not at all the same. 777 is dying or is already dead. It had only 123 deliveries in 4 years since the beginning of 2017...

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by mxaxai
Tue Mar 30, 2021 4:26 pm
Forum: Military Aviation & Space Flight
Topic: RC-135W on FR24
Replies: 4
Views: 571

RC-135W on FR24

I noticed that a RAF RC-135W is airborne over Europe. https://www.flightradar24.com/data/aircraft/zz666#273c8327 From other topics I know that military aircraft sometimes show up on such sites, just though it might be interesting to see where these aircraft fly to. Obviously, there's no reason to hi...

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by mxaxai
Tue Mar 30, 2021 12:57 pm
Forum: Military Aviation & Space Flight
Topic: Crewed or uncrewed space mission
Replies: 21
Views: 1146

Re: Crewed or uncrewed space mission

Just like Antarctica, until there is a protential for resources aquisition, you will only see a small scientific outpost that gets a few tourists now and then. bt Technically, Antarctica is protected from commercial exploitation through international treaties. However, the past would indicate that ...

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by mxaxai
Tue Mar 30, 2021 11:44 am
Forum: Civil Aviation
Topic: RR begins building worlds largest jet engine
Replies: 96
Views: 16841

Re: RR begins building worlds largest jet engine

Airbus will not have to resort to doing what Boeing did on the 737MAX and moving the engine forward and upwards. While modern CFD allows engineers to avoid the old rule-of-thumb approach regarding the position of an engine, the aerodynamic interaction of the wing and engine nacelle remains quite de...

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by mxaxai
Mon Mar 29, 2021 4:39 pm
Forum: Civil Aviation
Topic: Southwest Orders 100 MAX + 155 Options
Replies: 197
Views: 28609

Re: Southwest Orders 100 MAX + 155 Options

Got it. You're worried about WN leasing planes and then declaring Ch 11 bankruptcy, using that to force early lease returns. Or are you worried about a direct Chapter 7 liquidation? ;) I'm not worried, it's not my money. But any creditor would be silly not to assess the risk of their investment. Do...

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by mxaxai
Mon Mar 29, 2021 3:59 pm
Forum: Civil Aviation
Topic: Southwest Orders 100 MAX + 155 Options
Replies: 197
Views: 28609

Re: Southwest Orders 100 MAX + 155 Options

When is the last time WN sold anything other than 717s? Resale values still play a role when it comes to financing. If the customer - WN - goes belly up, the creditor is stuck with these assets. As a profitable company, WN probably has access to good financing in any case. But the residual value an...

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by mxaxai
Mon Mar 29, 2021 3:46 pm
Forum: Civil Aviation
Topic: SAA flight had an "extaordinarily dangerous" takeoff
Replies: 24
Views: 9492

Re: SAA flight had an "extaordinarily dangerous" takeoff

I thought that SAA was currently basically-shut-down due to failure of its turnaround plan, then exacerbated by Covid, with the majority of its fleet returned to lessors. The remaining fleet including the A340-600 is owned, I believe. Though the pilots lacked recent experience with the model, which...

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by mxaxai
Mon Mar 29, 2021 2:37 pm
Forum: Civil Aviation
Topic: Southwest Orders 100 MAX + 155 Options
Replies: 197
Views: 28609

Re: Southwest Orders 100 MAX + 155 Options

What does WN see in the -7 that the rest of the world misses? Especially among other LCC's, the -8 and its -200 variant seem to be far more popular. Likewise, former larger A319 operators like U2 are switching to the A320neo. As the (nearly) sole operator of the -7, doesn't WN worry about resale val...

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by mxaxai
Sun Mar 28, 2021 8:31 pm
Forum: Military Aviation & Space Flight
Topic: Crewed or uncrewed space mission
Replies: 21
Views: 1146

Re: Crewed or uncrewed space mission

Uncrewed missions can generate significant publicity too. ESA's Rosetta mission was talked about more than their ISS astronauts at the time. Though arguably astronauts can have more of a long term impact by appearing in interviews later on. "Firsts" also tend to be remembered for longer wh...

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by mxaxai
Sun Mar 28, 2021 8:04 pm
Forum: Military Aviation & Space Flight
Topic: UK Defence Command Paper: RAF to Axe C-130 Fleet by 2023
Replies: 39
Views: 2623

Re: UK Defence Command Paper: RAF to Axe C-130 Fleet by 2023

Kiwirob wrote:
This is the first time I’ve heard that they will buy additional A400’s to replace the Hercs, do you have a source for this?

I think RJMAZ was talking about a hypothetical case of 3 new A400M vs 14 refurbished C-130J.

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by mxaxai
Sun Mar 28, 2021 3:12 pm
Forum: Civil Aviation
Topic: RR begins building worlds largest jet engine
Replies: 96
Views: 16841

Re: RR begins building worlds largest jet engine

I must admit I didn't see the demonstrator being quite so big ..... Rgds The fan size (140") was announced last year already when they started work on the fan blades. https://www.rolls-royce.com/media/press-releases/2020/11-02-2020-intelligentengine-rr-starts-manufacture-of-world-largest-fan-b...

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by mxaxai
Sun Mar 28, 2021 3:01 pm
Forum: Civil Aviation
Topic: RR begins building worlds largest jet engine
Replies: 96
Views: 16841

Re: RR begins building worlds largest jet engine

889091 wrote:
How will they transport the beast to a remote, off site location, should an engine change be required?

In pieces, similar to a propeller?

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by mxaxai
Sun Mar 28, 2021 10:21 am
Forum: Military Aviation & Space Flight
Topic: Tempest Fighter Jet Programme News and Discussion Thread
Replies: 201
Views: 60220

Re: Tempest Fighter Jet Programme News and Discussion Thread

The U.K. ( and Sweden/Saab via their digital simulation tech) has clearly outlined the technological breakthroughs already made that help to validate making a 6 gen aircraft though. We’ve heard nothing of this sort from SCAF which is beginning to sound more like a jobs program to placate industry t...

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by mxaxai
Sun Mar 28, 2021 12:11 am
Forum: Technical/Operations
Topic: When did English become the Considered Language of the Skies.
Replies: 10
Views: 1836

Re: When did English become the Considered Language of the Skies.

Just to point it out... nearly all radio traffic between ATC and aircraft is done in the local language of each country. Often they only talk English to foreign aircraft. Some countries try to maintain English as the preferred language on the main frequencies, but it's rare. Indeed, Canada even man...

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by mxaxai
Sat Mar 27, 2021 1:11 am
Forum: Technical/Operations
Topic: When did English become the Considered Language of the Skies.
Replies: 10
Views: 1836

Re: When did English become the Considered Language of the Skies.

Standardization was sought prior to WW2 through ICAN, ICAO's predecessor in the League of Nations. For example, in 1937, the 38e conference aeronautique internationale [French, can't find an English version] agreed on: The Commission notes that it would be useful to define in several languages the t...

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by mxaxai
Fri Mar 26, 2021 11:15 pm
Forum: Military Aviation & Space Flight
Topic: UK Defence Command Paper: RAF to Axe C-130 Fleet by 2023
Replies: 39
Views: 2623

Re: UK Defence Command Paper: RAF to Axe C-130 Fleet by 2023

A herc costs something like 40K/hour to operate, so I would think the A400M’s by comparison will cost at least double that with the TP400’s. It’s an interesting trade off. Perhaps a post-Covid budget casualty. The budget is planned to increase regardless of COVID. This is not (directly) a casualty ...

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by mxaxai
Fri Mar 26, 2021 10:57 pm
Forum: Military Aviation & Space Flight
Topic: Tanker/AWACS/VIP/CRAF runway ops?
Replies: 4
Views: 819

Re: Tanker/AWACS/VIP/CRAF runway ops?

https://en.wikipedia.org/wiki/Operation_Eagle_Claw
Same for VIP transport, though VIP's very rarely have the need to visit such locations.
-->

Well, if you really need tankers at unprepared airfields you can use converted tactical airlifters like the C-130. See for example https://en.wikipedia.org/wiki/Operation_Eagle_Claw
Same for VIP transport, though VIP's very rarely have the need to visit such locations.

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by mxaxai
Fri Mar 26, 2021 3:25 pm
Forum: Military Aviation & Space Flight
Topic: Tempest Fighter Jet Programme News and Discussion Thread
Replies: 201
Views: 60220

Re: Tempest Fighter Jet Programme News and Discussion Thread

In an article in aviationweek.com Richard Aboulafia (who I know of as an airline/airliner guru) speculates that Germany could end up exiting the FCAS programme and joining the Tempest programme: The most likely outcome is that Germany will leave the SCAF and join the Tempest; there will be one pan-...

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by mxaxai
Fri Mar 26, 2021 9:27 am
Forum: Technical/Operations
Topic: Different manufacturers for jet engines #1 vs. #2
Replies: 25
Views: 3802

Re: Different manufacturers for jet engines #1 vs. #2

StereoTechque wrote:
Hehe, Very observant! Looks like Airbus permanently deactivated Centre gear on this one as this bird might never load upto it's Max MTOW.

Not permanently, just for the engine tests. I'm not entirely sure why.

The aircraft is currently used as a testbed for aerodynamics and other systems.

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by mxaxai
Thu Mar 25, 2021 12:25 am
Forum: Military Aviation & Space Flight
Topic: F-35 News and Discussion Thread - 2021
Replies: 51
Views: 6604

Re: F-35 News and Discussion Thread - 2021

An F-35B managed to damage itself with its own gun. https://www.military.com/daily-news/2021/03/24/marine-corps-f-35b-arizona-damaged-round-discharged-jet-cannon.html The F-35B [...] was conducting a nighttime close air support mission on March 12 on the Yuma Range Complex when a PGU-32/U Semi-Armor...

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by mxaxai
Thu Mar 25, 2021 12:19 am
Forum: Military Aviation & Space Flight
Topic: Germany Tornado Replacement News and Discussion Thread
Replies: 1687
Views: 244171

Re: Germany Considers Tornado Replacement

And the other, "Sword of Boelcke", highlights the new Recce capability of the Eurofighter due to the integration of the LITENING III targeting pod in 2019 (as described in their promotional video https://youtu.be/6fsvxRyqAJY?t=64: "The lightning stands for the new ability to bring li...

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by mxaxai
Thu Mar 25, 2021 12:03 am
Forum: Military Aviation & Space Flight
Topic: Red Arrows are safe after Ministry of Defence plans to retire entire fleet of 76 Hawk T1 aircraft
Replies: 10
Views: 1456

Re: Red Arrows are safe after Ministry of Defence plans to retire entire fleet of 76 Hawk T1 aircraft

They’re also early retiring the entire C130 fleet and only buying 3 E7’s not 5 and gutting the army. 24 T1 Typhoons are planned to be retired without replacement as well, and some of the older Chinooks and Pumas. https://www.theguardian.com/uk-news/2021/mar/22/uk-army-navy-and-raf-all-to-be-cut-bac...

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by mxaxai
Wed Mar 24, 2021 9:50 am
Forum: Technical/Operations
Topic: Parting out retired aircraft
Replies: 14
Views: 1875

Re: Parting out retired aircraft

Zinc chromate (ya they still do it), CIC (corrosion inhibiting compound), paint, etc... Its good “clean” aluminum. As long as the aluminum isn’t all mixed up with the next lower valued metal you’ll generally get the top dollar. That’s my limited experience over the years... The scrapper doesn’t car...

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by mxaxai
Wed Mar 24, 2021 9:39 am
Forum: Technical/Operations
Topic: Different manufacturers for jet engines #1 vs. #2
Replies: 25
Views: 3802

Re: Different manufacturers for jet engines #1 vs. #2

One example did come to mind where both engines were swapped: The A319NEO prototype was first flown and certified with CFM LEAP engines, and later fitted with PW1000G engines to certify that configuration.

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by mxaxai
Wed Mar 24, 2021 9:03 am
Forum: Technical/Operations
Topic: Different manufacturers for jet engines #1 vs. #2
Replies: 25
Views: 3802

Re: Different manufacturers for jet engines #1 vs. #2

No, it is generally required that all engines be of the same model and thrust rating, unless the aircraft is specifically certified for a certain combination. The reengined 727 "Super 27" keeps the old (smaller) center JT8D but uses the newer JT8D-200 for the no. 1 and 3 engines. The HS Tr...

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by mxaxai
Tue Mar 23, 2021 11:37 am
Forum: Technical/Operations
Topic: Grass landing strips
Replies: 21
Views: 2268

Re: Grass landing strips

I've seen a few larger aircraft get stuck on grass runways, usually WW2 warbirds, when the ground was wet and soft. If they're doing a tight turn or just standing there for a while, the gear can start digging a hole. Similarly, in wet conditions you'll often find a lot of dirt on the aircraft after ...

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by mxaxai
Sun Mar 21, 2021 10:09 pm
Forum: Technical/Operations
Topic: Why not wider runways?
Replies: 31
Views: 3828

Re: Why not wider runways?

CATIIIevery5yrs wrote:
We could just go back to giant circle landing surfaces.

You mean a disk 4km in diameter, covered entirely in concrete? Or just a circular 45m wide runway, like a halo?

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by mxaxai
Sat Mar 20, 2021 3:02 pm
Forum: Civil Aviation
Topic: Trigana Air B734 off the runway written off after landing incident at HLP
Replies: 7
Views: 2423

Re: Another 737 Incident in Indonesia: Trigana Air B734 off the runway written off after landing incident at HLP

AvHerald states that they experienced issues with the gear during climb after takeoff and decided to return after they couldn't resolve the problem in-flight.

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by mxaxai
Fri Mar 19, 2021 10:26 pm
Forum: Civil Aviation
Topic: Embraer New Turboprop Aircraft News and Discussion Thread
Replies: 384
Views: 43469

Re: Embraer New Turboprop Aircraft News and Discussion Thread

I asked because with real and proposed turboprop/open rotor aircraft, the usual solution to the clearance/heavy landing gear problem is either to change to a high-wing aircraft or to move the engine from the wings to the aft fuselage. I haven't seen engines mounted to the top side of the wing very ...

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by mxaxai
Fri Mar 19, 2021 7:05 pm
Forum: Military Aviation & Space Flight
Topic: Germany Future MPA Aircraft News and Discussion Thread
Replies: 119
Views: 11516

Re: Germany Future MPA Aircraft News and Discussion Thread

bikerthai wrote:
Did the German Heavy Lift program ever got through FMS approval?

bt

No, it was planned to proceed without FMS. The German government wanted to negotiate directly with Boeing / LM.

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