Search found 2075 matches

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by hivue
Mon May 25, 2020 3:12 pm
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

Speculation follows: A pilot who is understandably rather stressed by the situation might well push for TOGA and just hold full backstick. Which could lead to the aircraft becoming airborne in ground effect, slowing down because the engines haven't spooled up yet, then coming back down again and re...

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by hivue
Sat May 23, 2020 10:04 pm
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

From the pics we have seen after the nacelle scrape, the doors look fine and the RAT was deployed. The RAT would have deployed due to the engine failures which occurred after the cowlings scraped the runway and the airplane was back flying again. They may have been waaaay early retracting the gear ...

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by hivue
Sat May 23, 2020 10:00 pm
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

It's a miracle anyone survived this crash. Does anyone know whether the envelope protections would have been active all the way down to impact? The videos don't look to me like the airplane is stalled. It is not simply falling out of the sky in an uncontrolled manner. This accident might have been ...

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by hivue
Sat May 23, 2020 1:39 pm
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

I'm beginning to think they just forgot to lower the gear on the first landing attempt, so they attempted a belly landing. If they forgot to lower the gear they would not attempt a belly landing. They would go around -- which is what they did. As other posters have pointed out, if the go around was...

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by hivue
Sat May 23, 2020 1:26 pm
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

MigPilot wrote:
There were two landing attempts, with the issue arising after the first.


There was an issue with the first attempt as well. Otherwise only one attempt would have been required.

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by hivue
Sat May 23, 2020 1:04 am
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

Overly eager gear retraction means the gear was down. How would the cowlings get damaged during landing with the gear down? They started a go around, retracted the gear before insuring a positive rate of climb, the aircraft continued to descend, and the engines scraped the runway. There is an aural...

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by hivue
Sat May 23, 2020 12:50 am
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

acavpics wrote:
Could this be something like EK521 in which pilots relied on TOGA after wheels had already touched the ground, rendering the TOGA ineffective?


What accounts for the cowling damage (both cowlings) if the gear was down?

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by hivue
Sat May 23, 2020 12:49 am
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

How you could deduce that the plane ran out of fuel after seeing the damage to the cowlings and the plane obviously in the air subsequently is beyond me. Botched go-around if I had to guess. Overly eager gear retraction prior to positive rate of climb. Overly eager gear retraction means the gear wa...

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by hivue
Sat May 23, 2020 12:42 am
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 730
Views: 154368

Re: PIA A320 (flight PK8303) crashes in Karachi

pecevanne wrote:
They were flying at that time in direct law.


How do you know that?

pecevanne wrote:
See the very high angle of attack.


I see a high pitch attitude. If the airplane was in Normal Law it would not be at stall AoA. That rapid sink rate would be due to no/very little power from either engine.

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by hivue
Fri Mar 06, 2020 5:39 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, March 2020
Replies: 463
Views: 73400

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

The FAA has made plenty of MAX mistakes, but it isn't likely it certified the airplane if the airplane can't meet general stall recovery requirements. But you don't know that. And neither does planecane. I guess I'm not that much into skeptic philosophy. At some point you have to give the FAA (and ...

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by hivue
Thu Mar 05, 2020 10:38 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, March 2020
Replies: 463
Views: 73400

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

You answered yes, the Max is aerodynamically stable enough for the pilots to recover [from disabled MCAS during a entering-stall event]. How do you know that? That's pretty easy for anyone to know. The MAX can be stalled with MCAS (1.0, 2.0. whatever.0) active. MCAS does not prevent stalls. So if t...

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by hivue
Tue Mar 03, 2020 1:28 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, March 2020
Replies: 463
Views: 73400

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

[...snip...] --Is the Max aerodynamically stable enough for the pilots to recover the high AOA without further help from MCAS? [...snip...] I agree 100%. Almost a year has gone by, and still nobody knows (outside Boeing, maybe FAA), what's going on aerodynamically at the engine/pylon/leading edge i...

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by hivue
Sun Mar 01, 2020 9:38 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, March 2020
Replies: 463
Views: 73400

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

If the FAA demands perfection they will never get it. It is too complicated. The fact that these pilots survived in the sim is a major plus and good for them. :checkmark: The " the FAA wants more training" story seems to imply that the FAA will not let the MAX fly again until no pilot nee...

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by hivue
Sun Mar 01, 2020 12:28 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, March 2020
Replies: 463
Views: 73400

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

Nice to admit the testing was flawed, but then give yourself many benefits of many dubious situations. The Starliner flight was itself a test. Testing is done to find problems. They found problems. They will fix those. They should be required to repeat the test until no significant new problems are...

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by hivue
Fri Feb 28, 2020 8:33 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

I don't want to go off topic, but I didn't want to start a new thread either. Is this Fuel Tank FOD issue a Boeing wide concern (787, 777, 767) or just in the Max? If just the Max why? If I'm out of line, and this is common across Boeing in 2020 feel free to delete this post.. I have my theory's , ...

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by hivue
Fri Feb 28, 2020 1:39 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

If for any reason the 737 MAX is about 14% less profitable for the operators that initially expected, this annihilate his existence justification against both the 737 NG and the A32x neo. Many would argue that that justification is annihilated already, but that is beside the point. WN, AA, MOL, etc...

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by hivue
Thu Feb 27, 2020 9:00 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

Boeing's FOD issue is not limited to just the MAX. https://www.seattletimes.com/business/boeing-aerospace/boeing-finds-debris-in-wing-fuel-tanks-of-parked-737-maxs-orders-all-to-be-inspected/ From the article -- Regarding the additional 385 MAXs that were delivered to customers but have been ground...

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by hivue
Thu Feb 27, 2020 7:25 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

I think you know why. You are not naive to believe that anyone here actually has faith in Boeing anymore? Boeing NEEDS to prove to everyone that they will change for the future but that board is behind the 43 billion in share buy backs and 2 months after the Indonesian crash, they authorized anothe...

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by hivue
Thu Feb 27, 2020 7:18 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

PepeTheFrog wrote:
FOD has also been discovered in the KC-46A tanker, and some 787s that have been built in South Carolina.


It's likely FOD has been found (and present but not found) somewhere in at least a few examples of essentially every airplane ever produced.

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by hivue
Wed Feb 26, 2020 7:24 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

No. Random failures are exactly that. Look again at the FAA risk assessment Catastrophic events were expected without a fix and they gambled that could get the fix done before the next one - They lost, people were killed. You're essentially stating my point. After JT Boeing started working on a fix...

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by hivue
Wed Feb 26, 2020 5:36 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

No. They gambled on beating the laws of probability and people lost their lives because of it. If they had actually been gambling they would have contemplated no fix at all after JT and just counted on pilots following the runaway trim procedure for the remaining service life of the MAX. Instead th...

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by hivue
Wed Feb 26, 2020 4:50 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

To be fair, Boeing said they were going to fix MCAS before the Ethiopian crash - Reuters reported on 30th November 2018 that Boeing was working on a fix to allow MCAS to check both AOA sensors. The primary plan was to launch the update within six to eight weeks , which means that the update was mea...

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by hivue
Mon Feb 24, 2020 10:46 pm
Forum: Civil Aviation
Topic: French Bee Airbus A350 Loses Speed & Altitude During Go Around
Replies: 22
Views: 7746

Re: French Bee Airbus A350 Loses Speed & Altitude During Go Around

Context is everything. 290 knots on a training mission for the air force in the middle of no where is a lot different than an A350 descending during a go around at 1200 feet just south of Paris. The A350 was less than a minute from hitting the ground at an unsurvivable speed, which many would consi...

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by hivue
Mon Feb 24, 2020 7:54 pm
Forum: Civil Aviation
Topic: French Bee Airbus A350 Loses Speed & Altitude During Go Around
Replies: 22
Views: 7746

Re: French Bee Airbus A350 Loses Speed & Altitude During Go Around

With that said, I can’t think of any circumstance where it is appropriate for a passenger jet to be flying at 290 knots at 1200 ft. So if the airplane stalls at some altitude above 1200, the crew does the stall recovery procedure including putting the nose down, and the airplane happens to level ou...

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by hivue
Thu Feb 20, 2020 9:02 pm
Forum: Civil Aviation
Topic: Southwest CEO given green light by Board to look at other aircraft
Replies: 280
Views: 72546

Re: Southwest CEO given green light by Board to look at other aircraft

ILNFlyer wrote:
I sold my Boeing stock today.


Did you sell your Southwest stock too?

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by hivue
Thu Feb 20, 2020 9:01 pm
Forum: Civil Aviation
Topic: Southwest CEO given green light by Board to look at other aircraft
Replies: 280
Views: 72546

Re: Southwest CEO given green light by Board to look at other aircraft

hivue wrote:
KlimaBXsst wrote:
A 600+ Strong aircraft fleet does not disappear overnight.


With MAXes pouring in to WN after RTS their 737 fleet won't disappear for a generation or so.

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by hivue
Tue Feb 18, 2020 8:27 pm
Forum: Civil Aviation
Topic: Admire the skill. EY A380 strong crosswind landing at LHR
Replies: 91
Views: 19403

Re: Admire the skill. EY A380 strong crosswind landing at LHR

Revelation wrote:
It would have been nice to have seen more guidance than "this is not what we want to see".


I'm sure Etihad's pilot group can figure out what "we" DO want to see in cases like this.

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by hivue
Tue Feb 18, 2020 6:47 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

It would be totally foolish to do anything on real plane without Boeings test pilot on the other seat who knows what to expect and preventing anything really dangerous from happening. Nothing dangerous is going to happen with MCAS disabled. The dangerous stuff has all happened when MCAS was active....

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by hivue
Mon Feb 17, 2020 6:35 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

It is not clear to me if the wire separation requirement was or was not in place for NG design/certification. https://www.seattletimes.com/business/boeing-aerospace/faa-faces-dilemma-over-737-max-wiring-flaw-that-boeing-missed/ Boeing’s argument rests on the long service history of the earlier mode...

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by hivue
Sun Feb 16, 2020 11:51 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

It is not clear to me if the wire separation requirement was or was not in place for NG design/certification. https://www.seattletimes.com/business/boeing-aerospace/faa-faces-dilemma-over-737-max-wiring-flaw-that-boeing-missed/ Boeing’s argument rests on the long service history of the earlier mode...

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by hivue
Sun Feb 16, 2020 6:57 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

par13del wrote:
So the wiring has to be changed because it is not safe?
How would they allow the NG's to continue to fly without a refit, as far as I have seen.


The NG does not have to meet this certification requirement because the requirement did not exist when it was certified.

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by hivue
Fri Feb 14, 2020 1:33 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

flyingphil wrote:
Its remarkable how quiet the airlines have been


Not really. If they make noise they get noticed. If they get noticed, they get recognized as un-indicted co-conspirators.

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by hivue
Thu Feb 13, 2020 9:19 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

Sorry, I was really just trying to address your question on currency and expanded it to cover the rest of their flying qualifications. No problem. There's something of a "scandal" currently involving WN flying revenue flights with inaccurate weight and and balance paperwork and missing ma...

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by hivue
Thu Feb 13, 2020 8:31 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

Maybe you should do some research? I wasn't questioning whether these guys are really hotshot pilots or not. I'll take your word on that. My question had to do with what their hands-on participation will accomplish vs any trade offs regarding the time it takes to cater flight operations to them, ho...

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by hivue
Thu Feb 13, 2020 6:40 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

Very interesting that Dickson and Ewell will both take the training and do sim flights. And fly the airplane - “ I’m also not going to sign off on the aircraft until I fly it myself .” How useful is all of this? How much of Boeing's time will this take up, catering to VIPs on test flights? Are Dick...

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by hivue
Wed Feb 12, 2020 7:46 pm
Forum: Civil Aviation
Topic: We don't actually fully understand how planes can fly!.- Who knew?!
Replies: 87
Views: 10679

Re: We don't actually fully understand how planes can fly!.- Who knew?!

Very few airfoils have flat lower surfaces, they're all about curved. You're forgetting about angle of attack-Bernoulli certainly still works if you attack the air correctly with an inverted airfoil. Aerobatic planes generally have symmetrical airfoils to allow inverted flight- you'll notice that e...

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by hivue
Wed Feb 12, 2020 6:30 pm
Forum: Civil Aviation
Topic: We don't actually fully understand how planes can fly!.- Who knew?!
Replies: 87
Views: 10679

Re: We don't actually fully understand how planes can fly!.- Who knew?!

“The pressure differences exert the lift force on the airfoil, while the downward turning of the flow and the changes in flow speed sustain the pressure differences.” It is this interrelation that constitutes a fifth element of McLean’s explanation: the reciprocity among the other four. Isn't this ...

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by hivue
Wed Feb 12, 2020 6:19 pm
Forum: Civil Aviation
Topic: We don't actually fully understand how planes can fly!.- Who knew?!
Replies: 87
Views: 10679

Re: We don't actually fully understand how planes can fly!.- Who knew?!

casinterest wrote:
I feel like the article and the explanations are all tossing out one of the constants required to get lift. Thrust.


So how do sailplanes fly?

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by hivue
Tue Feb 11, 2020 5:07 am
Forum: Civil Aviation
Topic: Low QNH (!) cancels hundreds of flights in Norway
Replies: 25
Views: 8379

Re: Low QNH (!) cancels hundreds of flights in Norway

What it means is that any airport in the area of a QNH of 945 hPa will have a "simulated" altitude 1,917 feet higher; so, if an airport is at 2,000 ASL, it's "altitude" will now be 3,917 ft, and the airline will operate it like if it was operating at an airport 3,917 ft ASL (ins...

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by hivue
Sun Feb 09, 2020 12:34 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

For the record I wouldn't mind if the regulators sat on an approved fix for six to eight months before signing off on it as punishment. Glad to find someone who seems to agree with me that the airlines pushing for a "no-sim-transition" Max should be called to account for their roles in th...

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by hivue
Wed Feb 05, 2020 9:29 pm
Forum: Civil Aviation
Topic: Kobe Bryant killed in a helicopter crash
Replies: 744
Views: 111304

Re: Kobe Bryant killed in a helicopter crash

What surprises me here was that he didn't seem to have GPS and mapping. I would have stayed glued to the freeway except for a tight U-turn or land 5 min earlier. I'm not a helicopter pilot or involved in any way with helicopter operations, but it seems to me that a lot of people are having trouble ...

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by hivue
Wed Feb 05, 2020 8:07 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

Cdydatzigs wrote:
and airlines would have waited for them if they felt a 797 was a better option long-term than an optimized A320.


What the airlines actually felt was that a more fuel efficient "new" 737 needing no sim time for transition was better for their bottom line now than an A320NEO.

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by hivue
Wed Feb 05, 2020 8:03 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

If MCAS had been done correctly the engine placement is no big thing. The fact that MCAS had to be included at all means that engine placement on this particular airplane was a big thing. No bigger than the issues that FBW systems can cover up. Correct (although I would say "mitigate" rat...

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by hivue
Wed Feb 05, 2020 7:24 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

morrisond wrote:
If MCAS had been done correctly the engine placement is no big thing.


The fact that MCAS had to be included at all means that engine placement on this particular airplane was a big thing.

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by hivue
Tue Feb 04, 2020 6:50 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 95423

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

744SPX wrote:
and now Boeing is saying the Max will last for a generation? No.


The sad fact is it will. WN and Ryanair will have no other options available for quite a while -- unless they can live with used NGs for another generation.

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by hivue
Tue Feb 04, 2020 5:39 pm
Forum: Civil Aviation
Topic: Kobe Bryant killed in a helicopter crash
Replies: 744
Views: 111304

Re: Kobe Bryant killed in a helicopter crash

Once they were out of the Class D, they revert back to Part 135 VFR minimums And they started squawking 1200 again, correct. Would ATC have provided them a non-VFR code for transitioning the class D SVFR? They asked for (but weren't able to get due to altitude) flight following after getting past B...

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by hivue
Mon Feb 03, 2020 11:04 pm
Forum: Civil Aviation
Topic: Boeing 777X Testing/Production Thread - 2020
Replies: 1434
Views: 275250

Re: Boeing 777X Testing/Production Thread - 2020

It looks like the first two flights took off over Elliott Bay, away from populated areas, and the next two have been over more populated areas, or inland. Obviously for the first flight it makes sense to takeoff over less populated areas, and in fact the flight was delayed due to tailwinds preventi...

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by hivue
Mon Feb 03, 2020 10:57 pm
Forum: Civil Aviation
Topic: Kobe Bryant killed in a helicopter crash
Replies: 744
Views: 111304

Re: Kobe Bryant killed in a helicopter crash

An FDR would help, but ina single-pilot cockpit with such a short crash sequence, I’m unsure a CVR would have much information. The sequence is only about 12 seconds, other than “oh sxxt” what’s there? GF Agreed, although mechanical failure is still on the table (if not likely) so ambient sounds --...

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by hivue
Mon Feb 03, 2020 9:34 pm
Forum: Civil Aviation
Topic: Kobe Bryant killed in a helicopter crash
Replies: 744
Views: 111304

Re: Kobe Bryant killed in a helicopter crash

questions wrote:
1. Currently, what are the unknown facts that would aid most in solving how/why this accident occurred?


Facts gleaned from FDR and CVR data.


2. ... and which ones will likely never be known?


Facts gleaned from FDR and CVR data.

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