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Search: Posts Made By: MathFox
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20th Jan 2020, 21:39
Replies: 10
Views: 1,465
Posted By MathFox

I guess those built-in batteries are to prevent...

I guess those built-in batteries are to prevent the bag from being gate-checked... Li batteries have to travel in the cabin!
15th Jan 2020, 20:38
Replies: 4
Views: 523
Posted By MathFox

"Hydraulic problems" can be lots of different...

"Hydraulic problems" can be lots of different issues; it is the kind of wording one puts in a press release because the writer does not know any detail.

"Loss of a hydraulic system" means that the...
8th Dec 2019, 17:22
Replies: 15
Views: 964
Posted By MathFox

These cups would be poisonous for those needing a...

These cups would be poisonous for those needing a gluten-free diet!
14th Nov 2019, 18:31
Replies: 21
Views: 2,125
Posted By MathFox

Yes, there are limitations on the working hours...

Yes, there are limitations on the working hours for pilots and cabin crew. The exact regulations depend on the flag country of the airline.
A description of the EU (EASA) rules:...
Forum: Tech Log
7th Nov 2019, 17:46
Replies: 6
Views: 1,463
Posted By MathFox

Though with sufficiently complex software, one...

Though with sufficiently complex software, one will encounter bugs. I wonder how a PDF reader would act when there's insufficient memory to load (or transform) a large bitmap image. Will the entire...
6th Nov 2019, 19:58
Replies: 42
Views: 29,840
Posted By MathFox

Latest report: Air Europe says an alarm for...

Latest report: Air Europe says an alarm for kidnapping was accidentally triggered. ...
23rd Sep 2019, 18:43
Replies: 184
Views: 283,621
Posted By MathFox

The German operation is in a different company...

The German operation is in a different company (different legal entity), that is not yet bankrupt. They could in theory operate for years and years to come, as long as they have sufficient funds and...
8th Sep 2019, 11:10
Replies: 5
Views: 1,158
Posted By MathFox

As another participant noted: the current...

As another participant noted: the current hurricanes are too far south to affect the North Atlantic crossings. But even when a hurricane was on the usual flight path, the airline would just plan a...
Forum: Tech Log
21st Aug 2019, 20:14
Replies: 3
Views: 1,866
Posted By MathFox

If you give a presentation, please please get at...

If you give a presentation, please please get at least the orders in your formulas right.

In laminar flow drag is proportional to velocity. Lift is proportional to angle (of attack) times velocity...
1st Aug 2019, 16:50
Replies: 18
Views: 3,215
Posted By MathFox

Level bust, it could very well be that the route...

Level bust, it could very well be that the route LHR-ATL is extremely popular. However there is a weird phenomenon in aviation that flights with a connection are cheaper than direct flights. For...
1st Aug 2019, 16:14
Replies: 18
Views: 3,215
Posted By MathFox

Prices for two people seated next to each other...

Prices for two people seated next to each other can vary by a factor 3 or more. It has to do with the pricing structure of the airline. There generally are three buckets of tickets: refundable,...
24th Jul 2019, 22:09
Replies: 22
Views: 14,917
Posted By MathFox

Fully agree, it depends on the circumstances...

Fully agree, it depends on the circumstances which plan of action is appropriate. The two main alternatives are "continue to landing" or "go around." Both can be appropriate. If you're close to...
27th Jun 2019, 23:56
Replies: 4,656
Views: 4,167,829
Posted By MathFox

I see the MAX as a hurried response to the Airbus...

I see the MAX as a hurried response to the Airbus Neo. Boeing skipped some sanity checks in the MAX "adaptations"; the FAA blessed the design with less oversight than appropriate.
MCAS was the...
19th May 2019, 20:58
Replies: 185
Views: 140,222
Posted By MathFox

As armchair engineer I do have a question: Why...

As armchair engineer I do have a question: Why isn't there an MCAS cut-off switch that keeps the electric trim buttons operational?



I think that there is agreement that an MCAS runaway gives...
19th May 2019, 11:07
Replies: 8
Views: 993
Posted By MathFox

It sounds like an unavailable APU (small support...

It sounds like an unavailable APU (small support engine) so that there was no pressured air to start the main engines. For such occasions airports have "starter trucks" with a compressor available to...
23rd Apr 2019, 18:48
Replies: 23
Views: 13,891
Posted By MathFox

Can read Dutch (and know a bit or two about...

Can read Dutch (and know a bit or two about employment law): €3 million total in 8 wrongful termination suits is quite high for Dutch standards. Normal termination would have cost Ryanair about...
5th Mar 2019, 18:45
Replies: 16
Views: 2,193
Posted By MathFox

Flew Qantas long haul (LHR-SYD) fifteen years ago...

Flew Qantas long haul (LHR-SYD) fifteen years ago and had a good experience. I'm sure things will have changed but I haven't heard that service significantly improved or decayed.
12th Feb 2019, 21:31
Replies: 21
Views: 4,525
Posted By MathFox

The law in EUrope is that some conditions from...

The law in EUrope is that some conditions from the general T&C are not enforcible. A judge would certainly scratch is head why using less services than one paid for would mean that the customer would...
25th Jul 2018, 20:33
Replies: 8
Views: 1,527
Posted By MathFox

I also would recommend trying to find out what...

I also would recommend trying to find out what caused the accident and which of the parties should be held responsible. Chances are that this collision would be seen as "extraordinary circumstance"...
Forum: Tech Log
25th May 2018, 18:11
Replies: 20
Views: 3,094
Posted By MathFox

I am fairly sure you are right about that. It is...

I am fairly sure you are right about that. It is not that hard to make some automation that can fly and land a plane that is in good condition in good conditions, but those systems generally drop the...
Forum: Tech Log
27th Mar 2018, 18:46
Replies: 13
Views: 3,430
Posted By MathFox

When building something for the vacuum of space,...

When building something for the vacuum of space, consider heat dissipation. There is no air to convect heat away, leaving only conduction and radiation. Components that get warm on the work bench may...
17th Dec 2017, 12:25
Replies: 20
Views: 2,543
Posted By MathFox

I would take a 3 hour connection at LAX, that...

I would take a 3 hour connection at LAX, that should be enough for immigration and customs, and make sure that I have a through ticket... It would be AA or BA's responsibility to cater for you in...
Forum: Cabin Crew
29th Nov 2017, 22:21
Replies: 1
Views: 1,178
Posted By MathFox

Doing both a full time study and a full time job...

Doing both a full time study and a full time job leaves hardly any time to do something else. Consider a life of going to foreign cities and locking yourself up in your hotel room with your study...
Forum: Tech Log
29th Nov 2017, 22:05
Replies: 34
Views: 4,593
Posted By MathFox

Well, the batteries only need to supply that 90...

Well, the batteries only need to supply that 90 MW during climb (and climb power is lower than take-off power), so you can drain the batteries with 90 MW in about 10 minutes, requiring a 15.000 kwh...
17th Nov 2017, 17:17
Replies: 18
Views: 2,348
Posted By MathFox

In the early days flights used to have several...

In the early days flights used to have several stops for refuelling, etc. KLM had an Amsterdam-Jakarta (then called Batavia) before WW II with several stops and it was possible to buy tickets for...
Showing results 1 to 25 of 278
 


 
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