Search found 647 matches

  • 1
  • 2
  • 3
  • 4
  • 5
  • 13
by patrickjp93
Wed Jan 15, 2020 12:43 pm
Forum: Civil Aviation
Topic: Delta Widebody Thread - 2020
Replies: 618
Views: 123729

Re: Delta Widebody Thread - 2020

Delta has more A350s than 777LRs, has had A350s for 2 1/2 years, has all the performance data, and yet chooses to use 777LRs on the route. You really need to dial up your analytical and rhetorical skills if you want to make a compelling argument they're doing it wrong. You really need a solid educa...

Jump to post
by patrickjp93
Wed Jan 15, 2020 12:39 pm
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

Long-haul routes flying to-and-from China have generally been loosing money for the airlines involved, with crap yields, over capacity and awful load factors being the norm. I don't see appetite to upguage these routes unless the route economics change, no matter what growth projections say. India ...

Jump to post
by patrickjp93
Wed Jan 15, 2020 12:33 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

You never mentioned clear air turbulence before. Turbulence is irrelevant to the converation anyway. We started with airspeed measurements, and somehow you were bringing special relativity into it. Could you please elaborate on that part of converation? Just to remind you: I didn't mention it befor...

Jump to post
by patrickjp93
Wed Jan 15, 2020 12:30 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Besides the rules: Boeing was not able to just raise the ground clearance because it would have changed the wing and fuselage a lot: taller gear means bigger bay, means changes to the wing and fuselage. Also the front gear would have needed an extension and triggered changes at the fuselage there. ...

Jump to post
by patrickjp93
Wed Jan 15, 2020 1:21 am
Forum: Civil Aviation
Topic: A DL 772, Flying LAX-PVG, Makes Emergency Landing And Dumps Fuel On School
Replies: 565
Views: 57048

Re: A DL 772, Flying LAX-PVG, Makes Emergency Landing And Dumps Fuel On School

The only reason to dump fuel that low while returning that quick is a fire. Terrain isn’t an issue in LA the ocean is straight out. An engine out does not require this type of expeditious return to field. Speaking of fire, in the unlikely event of the dumped fuel landing on an open flame (wild fire...

Jump to post
by patrickjp93
Wed Jan 15, 2020 1:18 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

When I said you could use a telescoping gear to fix the MAX with the improvements I mentioned, that was a theoretical, clean implementation of telescoping tech. Yes, you'd have to make it active. No, flipping, duh. I never said you could use the MAX 10's gear. I said you could tweak the idea. Now t...

Jump to post
by patrickjp93
Wed Jan 15, 2020 1:08 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

That summation is woefully incomplete just based on the data dump so far. Do tell. The recent text/message dump is mostly about qualifying the simulator and setting the training requirements, and AFAIK not about any "jedi mind tricks" that may or may not have been played during the design...

Jump to post
by patrickjp93
Wed Jan 15, 2020 1:04 am
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

I stand corrected. You haven't made zero arguments; you've partially made at least one transparently stupid argument. To complete this bad argument, your next step would be, "given that these [fish, apparently] have no gill-space remaining, China and India must buy larger planes and have no ro...

Jump to post
by patrickjp93
Wed Jan 15, 2020 1:00 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

So would you pleas elaborate where special relativity comes into play, and how exactly air scattering is going to work? There were some EASA experiments on doppler measurements of air data. My impression is that it is less than perfect.. they didn't use "air deflection", though. And Doppl...

Jump to post
by patrickjp93
Wed Jan 15, 2020 12:53 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

That gear doesn't raise the height of the 737-10 by a single mm. It only helps at rotation. Next idea? It DOES raise the MAX 10 off the ground an additional 4 inches during rotation to avoid tail strike. My understanding is that it's passive and doesn't actively 'lift' the plane higher off the grou...

Jump to post
by patrickjp93
Tue Jan 14, 2020 8:57 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

That summation is woefully incomplete just based on the data dump so far. Do tell. The recent text/message dump is mostly about qualifying the simulator and setting the training requirements, and AFAIK not about any "jedi mind tricks" that may or may not have been played during the design...

Jump to post
by patrickjp93
Tue Jan 14, 2020 8:37 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

If grandfathering frameworks were more flexible in iterative improvement Boeing would have just raised the landing gear and not spend $300 million USD on building MCAS v1.0 and risked this nightmare. Grandfathering did not dictate the short gears. Boeing wanted it so cheap. Longer gears are terribl...

Jump to post
by patrickjp93
Tue Jan 14, 2020 8:33 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Yes, but we cannot discuss the FAA role in this unless we first state and restate all the Boeing errors, including share buy back, bribing congress, etc etc. etc. ST ( https://www.seattletimes.com/business/boeing-aerospace/after-lion-air-crash-boeing-doubled-down-on-faulty-737-max-assumptions/ ) ga...

Jump to post
by patrickjp93
Tue Jan 14, 2020 8:29 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

How does preventing tailstrikes helps fitting larger engines?? I must be missing something, so it would be helpful if you explain that to me like I'm a nine-year old. One of two ways, and no, like you're an eighteen year old whose brain isn't pickled by too many years of hitting the sauce. And prev...

Jump to post
by patrickjp93
Tue Jan 14, 2020 8:25 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Take the case of over-water flights: whether radar would provide actual craft speed readings is probably a question for the forum experts to chew over. Lidar at high altitude over water for speed measurement purposes sounds like quite an advanced application too. Special relativity doesn't give a d...

Jump to post
by patrickjp93
Tue Jan 14, 2020 8:16 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Seriously???? There were a lot of reaons for Boeing not to raise the landing gear, regulation framework though is very low on the list. Regulation framework is not stopping iterative improvement. If you want a prime example of iterative improvement, look no further than A320ceo, staying more than c...

Jump to post
by patrickjp93
Tue Jan 14, 2020 7:46 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

because the speed of light is constant In a vacuum. It's constant in any set of circumstances, but it does not maintain the same constant across those sets of circumstances, and the fundamental fact remains you can't accelerate it beyond that constant. If you know the outside air temperature and pr...

Jump to post
by patrickjp93
Tue Jan 14, 2020 7:43 pm
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

If I'm transparently stupid you really could use a mirror. And in accordance with the forum rules, you might want to cool your jets mon frere. I've said nothing about you personally, only your argument. In fact, I've said that many very smart people made your bad argument during decades of A380 mar...

Jump to post
by patrickjp93
Tue Jan 14, 2020 7:33 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

And you don't need the AoA to get your air speed. Using triangulation from the radar sensors or Boeing's upcoming Lidar implementation, you can derive craft speed based on the bounce time of reflected beams at a given distance ahead since Special Relativity is a well-understood scheme at this point...

Jump to post
by patrickjp93
Tue Jan 14, 2020 7:29 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

That gear doesn't raise the height of the 737-10 by a single mm. It only helps at rotation. Next idea? It DOES raise the MAX 10 off the ground an additional 4 inches during rotation to avoid tail strike. It can be pilot controlled and have a failsafe activation in the case where the flight control ...

Jump to post
by patrickjp93
Tue Jan 14, 2020 6:27 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

It is long due to discuss the role over regulation had in the process. Boeing could have made a better product without FAA oversight. The FAA didn't prevent Boeing from doing a clean sheet or to design the MAX properly. Boeing chose not to do it properly. They knew the regulations before they start...

Jump to post
by patrickjp93
Tue Jan 14, 2020 6:23 pm
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

A350s for China and 787s for India are already packed to the damn gills I stand corrected. You haven't made zero arguments; you've partially made at least one transparently stupid argument. To complete this bad argument, your next step would be, "given that these [fish, apparently] have no gil...

Jump to post
by patrickjp93
Tue Jan 14, 2020 6:10 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Incorrect. During an evacuation the landing gear's telescoping can be deactivated. The engines still won't be touching the ground, but they'll be too close to it to run, taxi, and take off. And you are back to a convoluted Rube Goldberg machine. Fun with getting that certified. Maybe "pyro act...

Jump to post
by patrickjp93
Tue Jan 14, 2020 6:08 pm
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

Statistics 101 Yeah thanks for telling me the difference between median and mean. I asked for an argument. You still have not made one. Nor have you responded to the other poster who has told you how mistaken you are about aerodynamics. You're digging in, as I expected (though I had held out hope)....

Jump to post
by patrickjp93
Tue Jan 14, 2020 6:02 pm
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

Again you need the barest amount of quantitative analysis. Take PVG: Per wikipedia, ~146 pax/movement. So the average aircraft at PVG is 737-800 or A320-sized. Traffic needs to roughly triple - absent any airfield improvement - until the average aircraft needs to be 777-9 sized. Incorrect. You need...

Jump to post
by patrickjp93
Tue Jan 14, 2020 5:55 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

What good is a glass dagger? What gain do you see here? The extendable ( by way of being softer sprung in a nonlinear way) -10 gear is a Rube Goldberg solution. It is the mech designers equivalent of a Redneck's Playboy Centerfold. .-) So you provided an ad hominem argument with no technical analys...

Jump to post
by patrickjp93
Tue Jan 14, 2020 5:49 pm
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

given those regions are expanding passenger loads on long haul far faster than Singapore or the Middle East 3, there is a trend toward larger jets than the A321XLR and B787 being needed. . Again you need the barest amount of quantitative analysis. Take PVG: Per wikipedia, ~146 pax/movement. So the ...

Jump to post
by patrickjp93
Tue Jan 14, 2020 5:46 pm
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

keesje wrote:
How many windtunnels have you seen from the inside or aircraft have you calculated induced, paracit drag for ..

Not sure if that question was meant for me, but 1 and zero. Now, relevance to the thread topic?

Jump to post
by patrickjp93
Tue Jan 14, 2020 5:44 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

That gear doesn't raise the height of the 737-10 by a single mm. It only helps at rotation. Next idea? It DOES raise the MAX 10 off the ground an additional 4 inches during rotation to avoid tail strike. How does preventing tailstrikes helps fitting larger engines?? I must be missing something, so ...

Jump to post
by patrickjp93
Tue Jan 14, 2020 5:39 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

I gave a perfectly reasonable explanation of what is wrong with the rigid framework of grandfathering. It was more expensive to develop MCAS and move the engines forward than it would have been to raise the landing gear, but raising the gear was made off-limits under grandfathering for the type. Th...

Jump to post
by patrickjp93
Tue Jan 14, 2020 5:38 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Only if you add the necessary caveats BEFORE starting the discussion. Says you. The FAA should be raked over the coals six ways from sunday and the facts support that. Yes, but we cannot discuss the FAA role in this unless we first state and restate all the Boeing errors, including share buy back, ...

Jump to post
by patrickjp93
Tue Jan 14, 2020 5:36 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

A hardened kernel helps against virus,malware,hacks or against bloated hardware interrupts unlike a general kernel. A hardened processor protects against radiation A reliable chip/hardware is measured in terms of mean time between failure Here the discussion is about flight safety , and you are mix...

Jump to post
by patrickjp93
Tue Jan 14, 2020 5:34 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

That gear doesn't raise the height of the 737-10 by a single mm. It only helps at rotation. Next idea? It DOES raise the MAX 10 off the ground an additional 4 inches during rotation to avoid tail strike. What good is a glass dagger? What gain do you see here? The extendable ( by way of being softer...

Jump to post
by patrickjp93
Tue Jan 14, 2020 4:34 pm
Forum: Civil Aviation
Topic: How is the Boeing 747-8 a good freighter but a bad passenger craft?
Replies: 100
Views: 17568

Re: How is the Boeing 747-8 a good freighter but a bad passenger craft?

Overall I agree with those that wrote that Boeing kicked the can down the road as far as it could with 747 and eventually the space used by the 747 FAL will be needed at KPAE for whatever they do next since the KPAE wing factory is built to do a lot more than 777x wings. Intersting - any idea how m...

Jump to post
by patrickjp93
Tue Jan 14, 2020 4:33 pm
Forum: Civil Aviation
Topic: How is the Boeing 747-8 a good freighter but a bad passenger craft?
Replies: 100
Views: 17568

Re: How is the Boeing 747-8 a good freighter but a bad passenger craft?

Heck even just build a 747 Mk II around the 777X wings, similar to the A10 Warthog being built around a machine gun. Why, just to save the nose door capability? IMO a future 778F will be the way to best use the 777x wings. 777x shares some of the same issues 747 had/has: as new better engines came ...

Jump to post
by patrickjp93
Tue Jan 14, 2020 4:15 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

So we need to add " The rules were wrong " to the list of reasons why it's not Boeing's fault? Shouldn't we be able to explore the FAA's role in the MAX tragedy without triggering the fear of Boeing absolution gag reflex? Only if you add the necessary caveats BEFORE starting the discussio...

Jump to post
by patrickjp93
Tue Jan 14, 2020 4:10 pm
Forum: Technical/Operations
Topic: Future VLA Market?
Replies: 91
Views: 5340

Re: Future VLA Market?

I find it interesting that people keep starting threads about the next VLA and their reason is always "Asia". Yet, nowhere near the majority of combined A380/B748 production went to Mainland Asian country airlines. With Thai and Malaysian, they shouldn't have even gotten them. Like others...

Jump to post
by patrickjp93
Tue Jan 14, 2020 4:05 pm
Forum: Civil Aviation
Topic: How is the Boeing 747-8 a good freighter but a bad passenger craft?
Replies: 100
Views: 17568

Re: How is the Boeing 747-8 a good freighter but a bad passenger craft?

It has a few advantages, the 747-8F has an MTOW of 975,000 pounds and an OEW of 434,600 pounds, whereas the 777F has an MTOW of 766,800 pounds but an OEW of 318,000 pounds, however, because passenger aircraft tend to run out of seats before they run out of weight on anything but the longest routes ...

Jump to post
by patrickjp93
Tue Jan 14, 2020 4:02 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Each complex question has a great answer - simple, obvious and wrong. Let's see how well your position holds water. From your perspective, how floor strength rating question should be addressed? Modern rules require higer impact strength of cabin floor than what is available on 737 family, and that...

Jump to post
by patrickjp93
Tue Jan 14, 2020 4:00 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Exeiowa wrote:
I remember when I thought after 3 years in my profession I knew everything.....

I don't think I know everything. I think I'm perfectly capable of sitting at the adult table and reasoning through issues just as complex as they do.

Do you know what another good word for experience is? Codified bias.

Jump to post
by patrickjp93
Tue Jan 14, 2020 3:57 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Telescoping gear that retract before being stowed. Good lord they already know how to do that for the MAX 10 just for takeoff to prevent tail strikes. That gear doesn't raise the height of the 737-10 by a single mm. It only helps at rotation. Next idea? It DOES raise the MAX 10 off the ground an ad...

Jump to post
by patrickjp93
Tue Jan 14, 2020 3:57 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

It was more expensive to develop MCAS and move the engines forward than it would have been to raise the landing gear, but raising the gear was made off-limits under grandfathering for the type. That's a failure of the regulation framework, simple as that. Iterative improvement has to be allowed. Ho...

Jump to post
by patrickjp93
Tue Jan 14, 2020 3:10 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Are you randomly googling keywords are pasting here? From IBM Z-Series running Linux now moved on to SUN/ZFS a file system. Limit the discussion to MAX and explain your take on bit flip issue on MAX. No I just have a very eclectic knowledge base from the computing world having been in the darkest b...

Jump to post
by patrickjp93
Tue Jan 14, 2020 3:07 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Is it actually a failure? Grandfathering is about small changes to previous design, so that there is no need to certify new type once you change color of cockpit paint. Question is what "small" actually means, drawing a bright line between can and cannot do. The manufacturer has an incent...

Jump to post
by patrickjp93
Tue Jan 14, 2020 3:00 pm
Forum: Civil Aviation
Topic: How is the Boeing 747-8 a good freighter but a bad passenger craft?
Replies: 100
Views: 17568

Re: How is the Boeing 747-8 a good freighter but a bad passenger craft?

Well there's that. But also you are going to need big planes for what needs to be hauled, which only thr 747, 777 and md-11 can carry Such as when Boeing needed to move two (largely) assembled GE9X engines from Ohio to Washington. No 777 freighter could have handled that type of mission. Of course,...

Jump to post
by patrickjp93
Tue Jan 14, 2020 2:07 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

... One technical correction for you. Bit flipping can't entirely be addressed by hardware (well, it can if you build an ASIC that is the OS binary made into Silicon, but that's EXPEEEEEEENSIVE to do and not viable for making a few hundred to a few thousand chips). Bit flipping at the software leve...

Jump to post
by patrickjp93
Tue Jan 14, 2020 2:01 pm
Forum: Civil Aviation
Topic: How is the Boeing 747-8 a good freighter but a bad passenger craft?
Replies: 100
Views: 17568

Re: How is the Boeing 747-8 a good freighter but a bad passenger craft?

Its not a bad passenger aircraft, it just had bad timing. :checkmark: The failure of the 748i was due to the pax market moving away from VLAs and towards mid sized twins. The 4-engines have been condemned for at least 20 years. The 777-300ER flouded the market between 2004 and 2015 being a high cap...

Jump to post
by patrickjp93
Tue Jan 14, 2020 1:54 pm
Forum: Civil Aviation
Topic: How is the Boeing 747-8 a good freighter but a bad passenger craft?
Replies: 100
Views: 17568

Re: How is the Boeing 747-8 a good freighter but a bad passenger craft?

Adding a nose door afterwards wouldn't make much sense aside from the structural changes needed. The pax 747-8 has a big hump that limits the cargo's height for a big part of the main deck below. They do remove a lot of the floor between the decks when they convert a PAX to a freight version. That'...

Jump to post
by patrickjp93
Tue Jan 14, 2020 1:53 pm
Forum: Civil Aviation
Topic: How is the Boeing 747-8 a good freighter but a bad passenger craft?
Replies: 100
Views: 17568

Re: How is the Boeing 747-8 a good freighter but a bad passenger craft?

Converted 747s can't have nose cargo door. So, if you need a freighter that can carry oversized cargo, you need to buy a 747 that is built as freighter from the beginning. That used to be true. The 747-8 was designed from the start to fix that problem. All converted models so far have had it instal...

Jump to post
by patrickjp93
Tue Jan 14, 2020 1:51 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, January 2020
Replies: 1740
Views: 192007

Re: Boeing 737MAX Grounding, General Discussion Thread, January 2020

Besides the rules: Boeing was not able to just raise the ground clearance because it would have changed the wing and fuselage a lot: taller gear means bigger bay, means changes to the wing and fuselage. Also the front gear would have needed an extension and triggered changes at the fuselage there. ...

Jump to post
  • 1
  • 2
  • 3
  • 4
  • 5
  • 13