Search found 20692 matches

by Starlionblue
Thu May 06, 2021 11:46 pm
Forum: Technical/Operations
Topic: What is the minimum battery power density needed for a 2000nm range?
Replies: 20
Views: 2533

Re: What is the minimum battery power density needed for a 2000nm range?

One of the big issues is that batteries don't lose weight as they discharge. On the other hand as you burn fuel that weight disappears. This has a massive effect on range. Also, an A350-1000 might carry a maximum of 124 tonnes of fuel, but not even the longest flights use that much. If nothing else...

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by Starlionblue
Thu May 06, 2021 2:11 pm
Forum: Technical/Operations
Topic: What is the minimum battery power density needed for a 2000nm range?
Replies: 20
Views: 2533

Re: What is the minimum battery power density needed for a 2000nm range?

One of the big issues is that batteries don't lose weight as they discharge. On the other hand as you burn fuel that weight disappears. This has a massive effect on range. Also, an A350-1000 might carry a maximum of 124 tonnes of fuel, but not even the longest flights use that much. If nothing else ...

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by Starlionblue
Tue May 04, 2021 6:48 am
Forum: Technical/Operations
Topic: Mid-life Career Change
Replies: 20
Views: 2995

Re: Mid-life Career Change

stefanJ wrote:
worst case if for ever reason it does not work out - at least you can say you tried.


That's more or less what my wife told me. "If you don't give it a shot, you'll regret it for the rest of your life."

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by Starlionblue
Tue May 04, 2021 3:58 am
Forum: Technical/Operations
Topic: FDX and UPS routes from Asia to EU
Replies: 11
Views: 2557

Re: FDX and UPS routes from Asia to EU

Hello, What are the reasons FDX and UPS fly their planes from Asia to Europe (and vice versa) straight across Kazakhstan instead of the shorter great circle route? Flyover fees? Any other fees? Are they the only airlines to do so ? Any insight would be very much appreciated ! Take care Alex As ment...

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by Starlionblue
Mon May 03, 2021 11:40 am
Forum: Technical/Operations
Topic: EASA Enigma - Any specific reason?
Replies: 14
Views: 2318

Re: EASA Enigma - Any specific reason?

Yeah I agree it's a bit unfair. As I mentioned in another thread, license conversion is as complicated as flying the plane. For one thing though, the EASA exams are significantly more complex than, say, the FAA one. By requiring the exams from every country, I suppose EASA avoids singling out parti...

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by Starlionblue
Mon May 03, 2021 9:41 am
Forum: Technical/Operations
Topic: EASA Enigma - Any specific reason?
Replies: 14
Views: 2318

Re: EASA Enigma - Any specific reason?

Yeah I agree it's a bit unfair. As I mentioned in another thread, license conversion is as complicated as flying the plane. For one thing though, the EASA exams are significantly more complex than, say, the FAA one. By requiring the exams from every country, I suppose EASA avoids singling out partic...

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by Starlionblue
Mon May 03, 2021 3:38 am
Forum: Technical/Operations
Topic: Mid-life Career Change
Replies: 20
Views: 2995

Re: Mid-life Career Change

That 1500 minimum in the US is a massive hurdle. If you have any possibility to work abroad you may be able to bypass it. Like many of my colleagues, I started working with a few hundred hours.

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by Starlionblue
Mon May 03, 2021 12:16 am
Forum: Technical/Operations
Topic: Mid-life Career Change
Replies: 20
Views: 2995

Re: Mid-life Career Change

I went to Sunstate Aviation in Kissimmee, FL. They specialise in full immersion, intensive training. I went from zero the CPL in less than four months after having done the PPL theory at home beforehand. I flew 2-3 times a day, every day, and studied between flights. Sunstate is not a big name schoo...

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by Starlionblue
Sun May 02, 2021 11:59 pm
Forum: Technical/Operations
Topic: Is it possible to access the cargo compartment from the passenger compartment?
Replies: 52
Views: 12288

Re: Is it possible to access the cargo compartment from the passenger compartment?

https://youtu.be/LxS2RR-Vx_s Access to the A350's forward hold via the E&E compartment at 1:22 Compared to the A330, the A350 hatch is nicely off to the side and a bit out of the way. The wide cockpit can accommodate that position. On the A330 it is right in front of the cockpit door, which you...

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by Starlionblue
Sun May 02, 2021 11:54 pm
Forum: Technical/Operations
Topic: Mid-life Career Change
Replies: 20
Views: 2995

Re: Mid-life Career Change

I did what you are considering, taking my first flying lesson when I was forty. It was a risk, of course. I took out most of retirement savings and trained up from zero to CPL over a few months in Florida. It took me a couple of years to get a job, but I now fly the A330 and A350. In the US, of cour...

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by Starlionblue
Thu Apr 29, 2021 4:03 am
Forum: Technical/Operations
Topic: Any chances of getting a EASA medical class 1 when exceeding vision limits?
Replies: 17
Views: 2134

Re: Any chances of getting a EASA medical class 1 when exceeding vision limits?

A problem I see is that you will have trouble with the flying school. Every flying school includes a large portion of solo-flying. A Cessna 172 is a single pilot aircraft, so I am not even sure it is allowed to count it as a 2-man crew. Can't have a co-pilot on a single-pilot aircraft. Wouldn't I b...

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by Starlionblue
Wed Apr 28, 2021 3:11 pm
Forum: Technical/Operations
Topic: Rapid Exit Taxiway / 777-8/9 folding wing tips (FWT)
Replies: 24
Views: 6178

Re: Rapid Exit Taxiway / 777-8/9 folding wing tips (FWT)

Isn't this the same logic of carrier based fighters with foldable wings, just on a smaller scale? E.g the Super Hornet. Extended in flight and folded on the deck/in the hangar. In theory, yes. In practice, more automated, proven to higher standards of safety and redundancy Quite. Military aircraft ...

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by Starlionblue
Wed Apr 28, 2021 1:03 am
Forum: Technical/Operations
Topic: Any chances of getting a EASA medical class 1 when exceeding vision limits?
Replies: 17
Views: 2134

Re: Any chances of getting a EASA medical class 1 when exceeding vision limits?

The first question is whether these can be corrected with glasses. If so, I'd definitely give it a try. Pretty much all commercial aircraft are indeed multicrew. Those which are not are at the smaller end, e.g. PC-12 and Caravan. However many airlines don't want to delve into requirements minutiae. ...

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by Starlionblue
Sun Apr 25, 2021 12:40 am
Forum: Technical/Operations
Topic: Why can a pax stand upright in downstairs toilets?
Replies: 10
Views: 4046

Re: Why can a pax stand upright in downstairs toilets?

One thing to remember is in a cargo bin area of the belly you have the container handling system installed in the floor. that takes up at least 6-8" (15-20mm). So if you were to put a permanent crew structure or passenger lav in that space the floor can be lower in the bilge area. There is a l...

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by Starlionblue
Sat Apr 24, 2021 7:50 am
Forum: Technical/Operations
Topic: Why doesn't the 777F have a swing tail?
Replies: 21
Views: 3179

Re: Why doesn't the 777F have a swing tail?

What about a drop down ramp in the back of the lower cargo hold? If the 777XF was based on the -9 that space is 57'9" long. Not as high as up top but would that have some utility? https://www.boeing.com/resources/boeingdotcom/commercial/airports/acaps/777X_RevB.pdf I can't see the point. There...

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by Starlionblue
Sat Apr 24, 2021 12:50 am
Forum: Technical/Operations
Topic: A330neo Alternate Nosewheel Steering
Replies: 10
Views: 2530

Re: A330neo Alternate Nosewheel Steering

The ALTN N/W STRG function is an option on the A330CEO as well. If set to on, the hydraulic yellow system provides nose wheel steering, as opposed to the normal green system. Only for use on the ground. BTW you can embed images from Imgur. https://i.imgur.com/Zqlz7Tz.png Why would an airline want s...

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by Starlionblue
Fri Apr 23, 2021 5:29 am
Forum: Technical/Operations
Topic: CRAF 747F range performance?
Replies: 5
Views: 1927

Re: CRAF 747F range performance?

They would just carry less cargo. Range as stated by the manufacturer is only a ballpark/guideline/marketing tool. In the real world, range changes for every flight given environmental conditions, en route winds, runway length, payload, drift down considerations over high terrain, and so forth. Loo...

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by Starlionblue
Fri Apr 23, 2021 3:54 am
Forum: Technical/Operations
Topic: CRAF 747F range performance?
Replies: 5
Views: 1927

Re: CRAF 747F range performance?

They would just carry less cargo. Range as stated by the manufacturer is only a ballpark/guideline/marketing tool. In the real world, range changes for every flight given environmental conditions, en route winds, runway length, payload, drift down considerations over high terrain, and so forth. Look...

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by Starlionblue
Fri Apr 23, 2021 3:14 am
Forum: Technical/Operations
Topic: Why doesn't the 777F have a swing tail?
Replies: 21
Views: 3179

Re: Why doesn't the 777F have a swing tail?

Maybe I'm missing something because I still haven't had my morning coffee, but why would an inop APU preclude EDTO/ETOPS? Checking the A330 and A350 MELs, there's no mention of an EDTO/ETOPS limitation if the APU is inop. Our B767's are restricted from 180 to 120 with an APU INOP. I suppose it migh...

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by Starlionblue
Fri Apr 23, 2021 12:41 am
Forum: Technical/Operations
Topic: Why doesn't the 777F have a swing tail?
Replies: 21
Views: 3179

Re: Why doesn't the 777F have a swing tail?

extender wrote:
I think not having an APU would limit your ETOPS as well.


Maybe I'm missing something because I still haven't had my morning coffee, but why would an inop APU preclude EDTO/ETOPS?

Checking the A330 and A350 MELs, there's no mention of an EDTO/ETOPS limitation if the APU is inop.

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by Starlionblue
Thu Apr 22, 2021 3:13 pm
Forum: Technical/Operations
Topic: Why doesn't the 777F have a swing tail?
Replies: 21
Views: 3179

Re: Why doesn't the 777F have a swing tail?

And also there is no Apu in the dreamlifter, you know to avoid a fuel line running in the open door, and this means the 777F with a swing tail might not have an Apu either. So what do they do if all engines totally fail? The all engine failure scenario is not that much improved by an operative APU....

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by Starlionblue
Thu Apr 22, 2021 2:32 pm
Forum: Technical/Operations
Topic: Why doesn't the 777F have a swing tail?
Replies: 21
Views: 3179

Re: Why doesn't the 777F have a swing tail?

And also there is no Apu in the dreamlifter, you know to avoid a fuel line running in the open door, and this means the 777F with a swing tail might not have an Apu either. So what do they do if all engines totally fail? The all engine failure scenario is not that much improved by an operative APU....

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by Starlionblue
Thu Apr 22, 2021 5:10 am
Forum: Technical/Operations
Topic: Why doesn't the 777F have a swing tail?
Replies: 21
Views: 3179

Re: Why doesn't the 777F have a swing tail?

There's limited demand for such a product, and development costs would be very significant. The cabin would be pressurised unlike the DreamLifter, which adds to the complexity involved. The 747F does have a nose door, and while it is convenient, AFAIK it isn't strictly necessary for the majority of ...

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by Starlionblue
Thu Apr 22, 2021 1:28 am
Forum: Technical/Operations
Topic: A330neo Alternate Nosewheel Steering
Replies: 10
Views: 2530

Re: A330neo Alternate Nosewheel Steering

The ALTN N/W STRG function is an option on the A330CEO as well. If set to on, the hydraulic yellow system provides nose wheel steering, as opposed to the normal green system. Only for use on the ground. BTW you can embed images from Imgur. https://i.imgur.com/Zqlz7Tz.png When would you use ALTN NWS...

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by Starlionblue
Thu Apr 22, 2021 12:12 am
Forum: Technical/Operations
Topic: A330neo Alternate Nosewheel Steering
Replies: 10
Views: 2530

Re: A330neo Alternate Nosewheel Steering

The ALTN N/W STRG function is an option on the A330CEO as well. If set to on, the hydraulic yellow system provides nose wheel steering, as opposed to the normal green system. Only for use on the ground.

BTW you can embed images from Imgur.

Image

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by Starlionblue
Wed Apr 21, 2021 12:36 am
Forum: Technical/Operations
Topic: YouTube Video - Late Throttle Override. Any further information?
Replies: 26
Views: 3752

Re: YouTube Video - Late Throttle Override. Any further information?

The reason these FOs are doing base training in the aircraft is because they do not have the required experience to do zero-flight-time or ZFT base training in a simulator. Probably 250 hour newbies straight out of flight school. The graphics in simulators are somewhat pants compared to real life. ...

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by Starlionblue
Wed Apr 21, 2021 12:33 am
Forum: Technical/Operations
Topic: Is it possible to access the cargo compartment from the passenger compartment?
Replies: 52
Views: 12288

Re: Is it possible to access the cargo compartment from the passenger compartment?

https://youtu.be/LxS2RR-Vx_s Access to the A350's forward hold via the E&E compartment at 1:22 Compared to the A330, the A350 hatch is nicely off to the side and a bit out of the way. The wide cockpit can accommodate that position. On the A330 it is right in front of the cockpit door, which you...

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by Starlionblue
Mon Apr 19, 2021 12:30 am
Forum: Technical/Operations
Topic: Is it possible to access the cargo compartment from the passenger compartment?
Replies: 52
Views: 12288

Re: Is it possible to access the cargo compartment from the passenger compartment?

The A340 has an integrated foldable ladder to access the aircraft from outside. Here is a training video: https://www.youtube.com/watch?v=eKrHO6a04Cw Many operators have removed the ladder. I guess it saves a bit of weight not to have it. Finding a ladder tends not to be a problem at most airports....

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by Starlionblue
Sat Apr 17, 2021 8:33 am
Forum: Technical/Operations
Topic: What else is an ATPL pilot allowed to fly?
Replies: 4
Views: 1962

Re: What else is an ATPL pilot allowed to fly?

To expand on VSMUT's post, you can think of it hierarchically. At the top is Category, then Class, then Type Rating. I'm going to use the FAA system, but as noted there are myriad national variations. A Class of aircraft is a broad category. - Airplane, which are fixed-wing aircraft, e.g. Cessna 172...

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by Starlionblue
Sat Apr 17, 2021 8:09 am
Forum: Technical/Operations
Topic: Is it possible to access the cargo compartment from the passenger compartment?
Replies: 52
Views: 12288

Re: Is it possible to access the cargo compartment from the passenger compartment?

I've gone through the avionics hatch in the cockpit, into the avionics compartment, and into the forward hold. Good morning! Is it true that you can also escape from the avionics bay to the tarmac by opening another hatch that gives access to the nose gear bay? Best regards, Hendric Yes, there is a...

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by Starlionblue
Sat Apr 17, 2021 1:11 am
Forum: Technical/Operations
Topic: Is it possible to access the cargo compartment from the passenger compartment?
Replies: 52
Views: 12288

Re: Is it possible to access the cargo compartment from the passenger compartment?

In some A340 it is possible to enter forward (through the E&E) and aft cargo (through the mobile crew rest) comparments during flight. Indeed. However, as I mentioned above the cargo hold is typically full of cans so it is a bit academic. In-flight, you'd basically open the door from the avioni...

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by Starlionblue
Fri Apr 16, 2021 12:05 pm
Forum: Technical/Operations
Topic: Is it possible to access the cargo compartment from the passenger compartment?
Replies: 52
Views: 12288

Re: Is it possible to access the cargo compartment from the passenger compartment?

I've gone through the avionics hatch in the cockpit, into the avionics compartment, and into the forward hold. Of course, once the cans are loaded, they would take up that space so they would block access. You can't get from the forward hold to the rear hold because the wing box is in the way. In ot...

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by Starlionblue
Fri Apr 16, 2021 1:41 am
Forum: Technical/Operations
Topic: YouTube Video - Late Throttle Override. Any further information?
Replies: 26
Views: 3752

Re: YouTube Video - Late Throttle Override. Any further information?

There are other issues that can affect the pilot trainee in simulators during landing: 1) The visual resolution of simulator visual systems is not as good as the real world so it affects the landing flare because the pilot is used to seeing a better resolution picture while determining the point to...

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by Starlionblue
Thu Apr 15, 2021 12:30 am
Forum: Technical/Operations
Topic: boeing 747 400X, the 400 under a different name or something else?
Replies: 10
Views: 3071

Re: boeing 747 400X, the 400 under a different name or something else?

Boeing monikers with an "X" typically denote proposals and not production versions. I think the -400X eventually developed into the 747-8. This article references two different -400X possibilities, one with the same external dimensions as the -400, and one stretched but retaining the -400E...

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by Starlionblue
Thu Apr 15, 2021 12:19 am
Forum: Technical/Operations
Topic: F-S scale on the attitude indicator
Replies: 9
Views: 2194

Re: F-S scale on the attitude indicator

https://upload.wikimedia.org/wikipedia/commons/c/c5/VMS_Artificial_Horizon.jpg My guess is that it is an angle of attack index, and the letters do indeed mean Fast and Slow. Many fast jets use angle of attack as a reference on approach. You can see the index on the left of this F/A-18 HUD. https://...

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by Starlionblue
Wed Apr 14, 2021 2:03 am
Forum: Technical/Operations
Topic: YouTube Video - Late Throttle Override. Any further information?
Replies: 26
Views: 3752

Re: YouTube Video - Late Throttle Override. Any further information?

In the training environment, we refer to this as "misjudging the flare," and while it is common for this to happen to pilots who have not previously flown the aircraft, it occasionally happens to experienced pilots as well, although perhaps not quite to the extent as shown in the video. A...

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by Starlionblue
Wed Apr 14, 2021 12:18 am
Forum: Technical/Operations
Topic: YouTube Video - Late Throttle Override. Any further information?
Replies: 26
Views: 3752

Re: YouTube Video - Late Throttle Override. Any further information?

As vikkyvik says, a bit late to make a difference in the actual touchdown. But I suppose the captain wanted to take control and go around, while also clearly indicating that he was in control. Just saying, "I have control," might not get through to a very "focused" student immedi...

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by Starlionblue
Wed Apr 14, 2021 12:13 am
Forum: Technical/Operations
Topic: Commuting Logistics for Airport Employees
Replies: 22
Views: 4132

Re: Commuting Logistics for Airport Employees

Given the exorbitant costs to park a car for passengers at airports. how does it work for employees? Are employee parking lots generally free or do they attract hefty costs for employees? Is there are general rule or does it depend on the type of employer and aspects such as availability of public ...

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by Starlionblue
Tue Apr 13, 2021 2:22 am
Forum: Technical/Operations
Topic: Pitot tube temperature
Replies: 10
Views: 2525

Re: Pitot tube temperature

Adding automatic pitot tube heating activation adds an additional point of failure. Nice when you a have a "mainline airliner", visiting these "hellholes" rarely, only to get back to the safety of well-stocked base in a more pleasant locale after a quick turn. Does it really? Yo...

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by Starlionblue
Tue Apr 13, 2021 2:13 am
Forum: Technical/Operations
Topic: Crippled by a windshield wiper
Replies: 25
Views: 3604

Re: Crippled by a windshield wiper

Quick question for all you pilots out there: do you actually use the damn things? I’ve ridden jumpseat countless times, and the only time I’ve seen them in actual use was sitting at the end of the runway for takeoff, and the crew activates them for a few seconds so they can have a “clear” view of t...

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by Starlionblue
Mon Apr 12, 2021 1:39 am
Forum: Technical/Operations
Topic: Crippled by a windshield wiper
Replies: 25
Views: 3604

Re: Crippled by a windshield wiper

The issue apparently came up after dispatch. The MEL doesn't need to be applied, but it can provide useful guidance. I don't have an A320 MEL, but the A330 should be fairly similar in this respect. It says that if one or both wipers are continuously running, the aircraft can dispatch with the wiper(...

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by Starlionblue
Sun Apr 11, 2021 1:26 am
Forum: Technical/Operations
Topic: Why not measure acceleration instead of using derated flat throttle percentage?
Replies: 15
Views: 2393

Re: Why not measure acceleration instead of using derated flat throttle percentage?

GalaxyFlyer wrote:
Funny, we used “reject” in the USAF, at least, in AMC, the command formerly known as MAC.


So who actually uses "abort"? :biggrin:

:?: :?: :?:

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by Starlionblue
Sun Apr 11, 2021 1:04 am
Forum: Technical/Operations
Topic: Why not measure acceleration instead of using derated flat throttle percentage?
Replies: 15
Views: 2393

Re: Why not measure acceleration instead of using derated flat throttle percentage?

As Lukas757 says, it's too late at the runway. Even if you used an acceleration measuring system, you have to work out the performance parameters ahead of time anyway. It's all done before engine start, because you need to know what reduced thrust you enter, if you can do an intersection take-off, ...

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by Starlionblue
Sat Apr 10, 2021 4:38 am
Forum: Technical/Operations
Topic: Extension of flaps and landing gear during turns on large aircraft
Replies: 18
Views: 3292

Re: Extension of flaps and landing gear during turns on large aircraft

I asked about this on a training course in Toulouse once. The manufacturer says its complete bogus, the hydraulic system is in no way negatively affected by doing 2 actions at once. It may have applied to WWII piston bombers, but not for modern airliners. Love it. Regardless, I'd get a thrashing if...

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by Starlionblue
Sat Apr 10, 2021 4:36 am
Forum: Technical/Operations
Topic: Why not measure acceleration instead of using derated flat throttle percentage?
Replies: 15
Views: 2393

Re: Why not measure acceleration instead of using derated flat throttle percentage?

As Lukas757 says, it's too late at the runway. Even if you used an acceleration measuring system, you have to work out the performance parameters ahead of time anyway. It's all done before engine start, because you need to know what reduced thrust you enter, if you can do an intersection take-off, i...

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by Starlionblue
Fri Apr 09, 2021 4:25 am
Forum: Technical/Operations
Topic: How do you apply NADP2 procedure?
Replies: 14
Views: 3093

Re: How do you apply NADP2 procedure?

I remember some flights where we reduced thrust right after LVR CLB flashes and aircraft was losing speed suddenly and was commanding an instant nose down, which causes a slight uncomfort for passenger. I remember one captain who recommended setting THR Reduction/Acceleration as 1200/1000. kemala, ...

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by Starlionblue
Fri Apr 09, 2021 2:20 am
Forum: Technical/Operations
Topic: Extension of flaps and landing gear during turns on large aircraft
Replies: 18
Views: 3292

Re: Extension of flaps and landing gear during turns on large aircraft

It is also considered good airmanship not to move the flaps and the gear at the same time to avoid peak loads on the green hydraulic system (this is also not a limitation/procedure, but is considered good airmanship). I asked about this on a training course in Toulouse once. The manufacturer says i...

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by Starlionblue
Fri Apr 09, 2021 12:48 am
Forum: Technical/Operations
Topic: How do you apply NADP2 procedure?
Replies: 14
Views: 3093

Re: How do you apply NADP2 procedure?

"Standard noise abatement" at my operator does include "Green Dot (Vzf) to 3000ft" after flap retraction, so we don't accelerate to 250kt. However in practice by the time you reach 3000ft, you might not even have had time to accelerate to Vzf. At 1500ft, thrust goes to CLB, and ...

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by Starlionblue
Thu Apr 08, 2021 1:58 am
Forum: Technical/Operations
Topic: How do you apply NADP2 procedure?
Replies: 14
Views: 3093

Re: How do you apply NADP2 procedure?

And I will be happy to hear practical applications of NADP2. Not all companies or pilots strictly follow what book says, so actual applications will be appreciated to see here. Thanks. Some would say this is nitpicking but actually you're quite right : Not before 240 m (800 ft) and while maintainin...

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by Starlionblue
Thu Apr 08, 2021 1:48 am
Forum: Technical/Operations
Topic: Extension of flaps and landing gear during turns on large aircraft
Replies: 18
Views: 3292

Re: Extension of flaps and landing gear during turns on large aircraft

If you're using manual thrust, smoothly increase as needed as the slats/flaps and gear come out. The biggest drag change is the gear, but you more or less know how much you need to increase the thrust to compensate. Set an approximate value as the gear comes out, and adjust once a speed trend become...

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