Search found 20687 matches

by Starlionblue
Sat Jul 24, 2021 4:56 am
Forum: Technical/Operations
Topic: Sinking feeling when leveling off on B757
Replies: 3
Views: 463

Re: Sinking feeling when leveling off on B757

It's physics. ;)

As the aircraft levels off at an altitude, it transitions from climbing to level. This means a slight decrease in G force acting on your body. The pitch change increases the effect.

An analogue would be going over the top of a hill with a pointy crest in a car.

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by Starlionblue
Sat Jul 24, 2021 2:56 am
Forum: Technical/Operations
Topic: Reducing to climb power during a turn
Replies: 12
Views: 1435

Re: Reducing to climb power during a turn

GalaxyFlyer wrote:
Starlionblue wrote:
CosmicCruiser wrote:
you can always just lower the nose as you reduce power


That's what the FD tends to tell you to do anyway. ;)


I certainly hope a competent pilot wouldn’t need a FD to know that!


:rotfl: :rotfl: :rotfl:

"Hmmm. I wonder why the speed is decaying so fast..."

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by Starlionblue
Fri Jul 23, 2021 7:21 am
Forum: Technical/Operations
Topic: Qatar Airways threatens Pilots for taxiing with both engines
Replies: 46
Views: 9292

Re: Qatar Airways threatens Pilots for taxiing with both engines

In 2005 there was an incident at MSP with a NW DC9. The DC9 landed and had a failure of its right hydraulic system. The pilots mistakenly believed it was a pressure indication problem. They proceeded to taxi to the terminal using their company’s single engine taxi policy. They shut down the left en...

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by Starlionblue
Fri Jul 23, 2021 1:27 am
Forum: Technical/Operations
Topic: Reducing to climb power during a turn
Replies: 12
Views: 1435

Re: Reducing to climb power during a turn

CosmicCruiser wrote:
you can always just lower the nose as you reduce power


That's what the FD tends to tell you to do anyway. ;)

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by Starlionblue
Wed Jul 21, 2021 1:15 am
Forum: Technical/Operations
Topic: Sunwing 737 Runway 28 Landing at SXM on video
Replies: 52
Views: 7868

Re: Sunwing 737 Runway 28 Landing at SXM on video

As stated by 737maxxx, that was a visual approach, not circling. A circling approach implies flying the approach for another runway (in this case the reciprocal one) and then manoeuvring visually to position for the runway in use. Circling approaches used to be more common, but many companies don't...

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by Starlionblue
Wed Jul 21, 2021 1:10 am
Forum: Technical/Operations
Topic: 737 max safety card question
Replies: 19
Views: 3261

Re: 737 max safety card question

It's a life jacket. Most likely they come from the lowest bidder at the time of purchase. ;)

One might think that clip is more expensive but it's the total cost of the unit that counts. At a guess, in some cases, clip style fastener jackets may be cheaper, depending on supply chain vagaries.

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by Starlionblue
Sat Jul 17, 2021 2:32 am
Forum: Technical/Operations
Topic: Lowering flaps and gear at the same time.
Replies: 11
Views: 1074

Re: Lowering flaps and gear at the same time.

At my operator, it is convention to lower gear first, wait until it has stopped transiting, then call flaps 3. However, there's no limitation on doing them together. On the A330, slats are powered by blue + green systems, whilst flaps are powered by green + yellow systems. If you lose a system, the ...

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by Starlionblue
Fri Jul 16, 2021 1:57 am
Forum: Technical/Operations
Topic: Flap movement always in stages?
Replies: 14
Views: 1650

Re: Flap movement always in stages?

Sorta. It depends on whether you are above or below auto-retract speed. The flap movement speeds on takeoff and approach are normally a bit different, so in effect it makes a difference whether you are approaching or departing. For example, you might not retract to clean until 230 knots when depart...

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by Starlionblue
Fri Jul 16, 2021 1:52 am
Forum: Technical/Operations
Topic: Vortex Generators and Quality of Wing Design
Replies: 1
Views: 478

Re: Vortex Generators and Quality of Wing Design

Vortex generators aren't necessarily band-aids. They can just be a simpler and cheaper way of achieving the design objective.

Or, such as on the Beech 1900, they are due to a change in the airframe well beyond what the initial designers anticipated.

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by Starlionblue
Fri Jul 16, 2021 1:51 am
Forum: Technical/Operations
Topic: Qatar Airways threatens Pilots for taxiing with both engines
Replies: 46
Views: 9292

Re: Qatar Airways threatens Pilots for taxiing with both engines

Is it really that difficult to disengage an engine after landing and taxi to the gate with just one engine producing power ? Yes, there may be an exceptional circumstance on a particular flight but I don't know of any company that likes its employees wasting money It's easy to switch an engine off ...

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by Starlionblue
Thu Jul 15, 2021 1:31 pm
Forum: Technical/Operations
Topic: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?
Replies: 14
Views: 1953

Re: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?

PRBC?

fr8mech wrote:

Starlionblue wrote:
Apart from the pilots. ;)


The yoke actuator and the short between the headset are a problem that transcends aircraft type.


:rotfl: :rotfl: :rotfl:

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by Starlionblue
Thu Jul 15, 2021 8:57 am
Forum: Technical/Operations
Topic: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?
Replies: 14
Views: 1953

Re: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?

Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?

Apart from the pilots. ;)

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by Starlionblue
Thu Jul 15, 2021 3:10 am
Forum: Technical/Operations
Topic: Flap movement always in stages?
Replies: 14
Views: 1650

Re: Flap movement always in stages?

This is slightly off-topic, but on the bus if you put the flap lever in 1, the actual position of the flaps and slats depends on if the airplane thinks you're taking off or landing? Sorta. It depends on whether you are above or below auto-retract speed. The flap movement speeds on takeoff and appro...

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by Starlionblue
Wed Jul 14, 2021 8:24 am
Forum: Technical/Operations
Topic: Flap movement always in stages?
Replies: 14
Views: 1650

Re: Flap movement always in stages?

SOP dictates going through the steps. Also, flap levers have gates so you can't move directly from some settings to others. You don't always pass through all the stages. For example, on the A330 and A350, you retract from three to one on takeoff and go around. Also, if you're at Flaps One on takeoff...

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by Starlionblue
Tue Jul 13, 2021 1:07 am
Forum: Technical/Operations
Topic: Flight Deck Temperature Comfort
Replies: 12
Views: 2149

Re: Flight Deck Temperature Comfort

The A330 and A350 are fine, with quite consistent temperature. The A350 seems a bit more efficient on the cooling front. Since we fly both, many guys seem to set the knob at the same setting as the A330, often resulting in a bit of a chill. There are plenty of adjustable air vents, including a gaspe...

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by Starlionblue
Mon Jul 12, 2021 1:43 am
Forum: Technical/Operations
Topic: Biz-jet thrust reversers activated whilst taxiing.
Replies: 24
Views: 2291

Re: Biz-jet thrust reversers activated whilst taxiing.

Thanks for all the replys. Begs the question why engine idle speeds can't be reduced to lower minimums. Because the engines would stop if the mass flow was much lower than idle. As CRJockey says, it isn't really a problem in the real world. Unless you're in a crowded area or about to turn, you just...

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by Starlionblue
Sun Jul 11, 2021 1:33 am
Forum: Technical/Operations
Topic: Bump on Boeing 737-200 engine
Replies: 9
Views: 1511

Re: Bump on Boeing 737-200 engine

A picture would really help. :)

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by Starlionblue
Sat Jul 10, 2021 6:57 am
Forum: Technical/Operations
Topic: New FAA Standard Weights: A Summer and Winter of Fuel Stops?
Replies: 36
Views: 3331

Re: New FAA Standard Weights: A Summer and Winter of Fuel Stops?

I wasn't thinking about lift from a slight breeze changing the weight on the scales. Thanks for pointing that out! It’s not so much about the wind causing lift (weight reduction) as that’s pretty immaterial. What it does do is create eccentric loading. Take a scale outside and hold a large piece of...

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by Starlionblue
Thu Jul 08, 2021 10:09 am
Forum: Technical/Operations
Topic: How much does a typical airline pilot know about his/her aircraft?
Replies: 22
Views: 3549

Re: How much does a typical airline pilot know about his/her aircraft?

But it keeps you busy on long flights. We had some engineers who'd get creative with their questions with new F/E's, and you'd better know which parts on the C-130 was made of wood. Same engineers did not like it as much if you'd ask them technical stuff about the FMS or navigation :bouncy: Let's n...

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by Starlionblue
Thu Jul 08, 2021 2:22 am
Forum: Technical/Operations
Topic: New FAA Standard Weights: A Summer and Winter of Fuel Stops?
Replies: 36
Views: 3331

Re: New FAA Standard Weights: A Summer and Winter of Fuel Stops?

Why can't scales be installed at the gates? I would think that a pad for each gear strut would be well within the technological limitations in 2021. Then, everything can be based on an exact weight. That or a scale that each passenger walks over with their carry on items. They can get the checked b...

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by Starlionblue
Mon Jul 05, 2021 2:40 pm
Forum: Technical/Operations
Topic: Needing Sponsorship
Replies: 10
Views: 1431

Re: Needing Sponsorship

I think it would probably easier to find someone to marry and gain citizenship to gain employment than to find an air carrier that sponsors for an H-1b visa. Green card lottery is another very viable alternative. Odds should be pretty good as i cant imagine lots of canadians apply for that. Canadia...

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by Starlionblue
Mon Jul 05, 2021 3:24 am
Forum: Technical/Operations
Topic: A350-1000 versus B777-300ER
Replies: 62
Views: 11486

Re: A350-1000 versus B777-300ER

Bear in mind the 777 is a quarter-century older basic design. The A350 has superior performance. The same is true of the 737, yet it also has something like 5,000 frames on order vs. the newer A320. The 737MAX has new engines and a bunch of other improvements. The 777 does not, until the 777X enter...

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by Starlionblue
Sun Jul 04, 2021 5:09 am
Forum: Technical/Operations
Topic: Carry on baggage selecting at gate
Replies: 16
Views: 1690

Re: Carry on baggage selecting at gate

I'll stand up for the roll-a-board and say as a airline passenger with almost two million miles under my belt I've never had my roll-a-board gate checked except on smaller RJ's, but you have to expect to happen as there is simply no overhead it will fit into. I remember flying Virgin Atlantic in th...

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by Starlionblue
Sun Jul 04, 2021 1:24 am
Forum: Technical/Operations
Topic: Pros and Cons of Flap Track Placement
Replies: 2
Views: 826

Re: Pros and Cons of Flap Track Placement

On modern airliners, flap track fairings are important for area ruling. If they only had to contain the flap tracks, they'd be much smaller. On widebodies, Airbus has an unbroken flap line, while Boeing has a high-speed aileron far inboard. There are pros and cons to both configurations, mostly havi...

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by Starlionblue
Sun Jul 04, 2021 1:18 am
Forum: Technical/Operations
Topic: How much does a typical airline pilot know about his/her aircraft?
Replies: 22
Views: 3549

Re: How much does a typical airline pilot know about his/her aircraft?

It's like the updated sharklets on the A350. It has no material effect on how we operate the aircraft, so it isn't really an important piece of knowledge. I never knew that Airbus updated the Sharklets on the A350. How do the new Sharklets differ from the first A350 to enter service? Do they apprec...

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by Starlionblue
Sat Jul 03, 2021 4:36 am
Forum: Technical/Operations
Topic: How much does a typical airline pilot know about his/her aircraft?
Replies: 22
Views: 3549

Re: How much does a typical airline pilot know about his/her aircraft?

This topic makes me think of a discussion here on a.net from maybe 10/15 years ago when, I think it was AA, updated the flap mechanism of their MD-80s to decrease drag. I was surprised that the pilots of the fleet were not aware of the change nor seemed to even noticed it happened. It's like the up...

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by Starlionblue
Sat Jul 03, 2021 4:34 am
Forum: Technical/Operations
Topic: Carry on baggage selecting at gate
Replies: 16
Views: 1690

Re: Carry on baggage selecting at gate

Packing light is a skill that takes practice. I pack light whichever bag I bring. I could pack a duffle bag but the wheelie spinner is just more comfortable. I can still easily lift it with one hand. The only time I need something bigger than a carry-on is for snowboarding trips. I do take your poin...

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by Starlionblue
Sat Jul 03, 2021 4:28 am
Forum: Technical/Operations
Topic: Why is the BAC limit for pilots higher than that of driving in the US states?
Replies: 12
Views: 1876

Re: Why is the BAC limit for pilots higher than that of driving in the US states?

There's also 91.17.a.2 which states "under the influence." So if you're >8 hours and <.04 but still feel like garbage, they count that. https://www.law.cornell.edu/cfr/text/14/91.17 Precisely. The overriding concern isn't the precise number of hours from the last drink, but your fitness t...

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by Starlionblue
Fri Jul 02, 2021 3:24 am
Forum: Technical/Operations
Topic: New FAA Standard Weights: A Summer and Winter of Fuel Stops?
Replies: 36
Views: 3331

Re: New FAA Standard Weights: A Summer and Winter of Fuel Stops?

So have the weights actually increased? Passengers have got fatter over the pandemic? Or is this purely the extra weight of the extra fuel that's required to be loaded based on the passenger weights, if so then can it really have that much impact tankering a bit of extra fuel? Even the 50seat plane...

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by Starlionblue
Wed Jun 30, 2021 5:00 am
Forum: Technical/Operations
Topic: Carry on baggage selecting at gate
Replies: 16
Views: 1690

Re: Carry on baggage selecting at gate

Was it a full load of pax? Maybe there wasn't enough room on board and the gate agent did indeed choose bags at random. Yes, 100% full. I am trying to find out why my suitcase got chosen, as others didn't. Hoping to avoid check in next time. ;-) Was your suitcase the maximum carry-on size? And did ...

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by Starlionblue
Wed Jun 30, 2021 2:53 am
Forum: Technical/Operations
Topic: Carry on baggage selecting at gate
Replies: 16
Views: 1690

Re: Carry on baggage selecting at gate

Was it a full load of pax?

Maybe there wasn't enough room on board and the gate agent did indeed choose bags at random.

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by Starlionblue
Wed Jun 30, 2021 2:39 am
Forum: Technical/Operations
Topic: Could a shorter person, say a person like 5 feet or something be a pilot?
Replies: 12
Views: 1976

Re: Could a shorter person, say a person like 5 feet or something be a pilot?

Apart from the military, there typically aren't any more requirements than "can reach the controls". A short person might have enough reach, or not, depending on individual physique. At the airlines, if there are any doubts they make you do a "reach test" during the interview pro...

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by Starlionblue
Tue Jun 29, 2021 1:49 pm
Forum: Technical/Operations
Topic: How much does a typical airline pilot know about his/her aircraft?
Replies: 22
Views: 3549

Re: How much does a typical airline pilot know about his/her aircraft?

I suppose I did know that about the engine-driven pumps, but what about the electric pumps? Sounds like I need to add some more questions to the OTE database for you. The two EMPs are on the keel beam in the MLG, the yellow in the front and green in the rear. Technically there is an additional one ...

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by Starlionblue
Tue Jun 29, 2021 10:08 am
Forum: Technical/Operations
Topic: How much does a typical airline pilot know about his/her aircraft?
Replies: 22
Views: 3549

Re: How much does a typical airline pilot know about his/her aircraft?

zeke wrote:
Starlionblue wrote:
I couldn't tell you exactly where they are located in the airframe.


They are not in the airframe, they are attached to the engine.


I walked right into that one. :lol: :white:

I suppose I did know that about the engine-driven pumps, but what about the electric pumps?

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by Starlionblue
Tue Jun 29, 2021 3:30 am
Forum: Technical/Operations
Topic: How much does a typical airline pilot know about his/her aircraft?
Replies: 22
Views: 3549

Re: How much does a typical airline pilot know about his/her aircraft?

But - is this type of in-depth knowledge typical for a professional airline pilot? Of course, a certain knowledge is required to obtain the license & type rating, but would this required knowledge include these highly specialized topics? Or are the contributors in here just tech nuts like me wh...

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by Starlionblue
Tue Jun 29, 2021 12:30 am
Forum: Technical/Operations
Topic: Lightning Strike on 777
Replies: 17
Views: 3086

Re: Lightning Strike on 777

Hello Guys, Anyone can share with us what is the impact of a lightning strike on airplanes ? Just viewed this video and that was so impressive ! We can see a Boeing 777 of Air France having a lightning on final approach https://www.youtube.com/watch?v=jg8oCZw3Uyc Any inspections to be done ? Thanks...

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by Starlionblue
Tue Jun 29, 2021 12:28 am
Forum: Technical/Operations
Topic: How much does a typical airline pilot know about his/her aircraft?
Replies: 22
Views: 3549

Re: How much does a typical airline pilot know about his/her aircraft?

Taking hydraulics as an example, I know which pumps exist and how to turn them on and off from the cockpit. I couldn't tell you exactly where they are located in the airframe. I know in general terms what each hydraulic system drives, at least when it comes to systems where it might be operationally...

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by Starlionblue
Mon Jun 28, 2021 2:46 pm
Forum: Technical/Operations
Topic: Control tower in uncontrolled airspace
Replies: 18
Views: 1460

Re: Control tower in uncontrolled airspace

As I see it, there are at least two ways to answer this. - A control tower can exist and not be operational during certain hours, for example at night. Hence uncontrolled but a control tower exists. - If a temporary tower is operational, you'd get a NOTAM making the relevant airspace controlled. Hen...

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by Starlionblue
Mon Jun 28, 2021 12:03 am
Forum: Technical/Operations
Topic: Lightning Strike on 777
Replies: 17
Views: 3086

Re: Lightning Strike on 777

If you're aware of the strike(s), you'd tell the engineer after parking. The aircraft exterior would then be checked for damage. Sometimes there are little holes. In many cases, speed tape is enough until a permanent repair can be performed. In other cases the radome might have cracked and needs to ...

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by Starlionblue
Sun Jun 27, 2021 12:32 am
Forum: Technical/Operations
Topic: Terrain Radar vs. Weather radar- do both pose a risk of radiation?
Replies: 6
Views: 1267

Re: Terrain Radar vs. Weather radar- do both pose a risk of radiation?

It is my understanding that weather radars pose a significant risk of radiation and are turned off when the aircraft is on the ground near the ramp/terminal area, but does a terrain radar pose the same risk? I am not a pilot, but I am just curious how these two systems work. Airliners have no separ...

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by Starlionblue
Fri Jun 25, 2021 9:53 am
Forum: Technical/Operations
Topic: Convair 880 takeoff and landing flap settings
Replies: 7
Views: 2009

Re: Convair 880 takeoff and landing flap settings

Digging through the late Chic Eather's website reveals tech exam papers on the 880. I only skimmed but flap settings 22 and 44 degrees are mentioned, as well as "full flap". A more through reader might perhaps glean some actual settings for takeoff and landing. http://www.chingchic.com/con...

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by Starlionblue
Tue Jun 22, 2021 9:41 am
Forum: Technical/Operations
Topic: UA 752/3 and 763 CRT displays
Replies: 17
Views: 4272

Re: UA 752/3 and 763 CRT displays

Following video states that CRTs will no longer be in production after 31-DEC-21. So, retrofit is a way to go, I presume. I found this interesting video: https://www.youtube.com/watch?v=Uxi1KNqNN4s Then what about the new builds? On previous threads I’ve learned that new 763Fs are still built with ...

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by Starlionblue
Mon Jun 21, 2021 6:22 am
Forum: Technical/Operations
Topic: Can a B777LR take off at MTOW from a wet 2,7km rwy?
Replies: 18
Views: 2896

Re: Can a B777LR take off at MTOW from a wet 2,7km rwy?

It's weird that 10L would be more limiting. The terrain is flat as a pancake. Looking at Google Maps, the airport charts, and the VFR chart I can't see any notable obstacles in that direction. It's just a highway, some low light industrial buildings, a waterway, and then the ocean. Street view from ...

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by Starlionblue
Mon Jun 21, 2021 1:04 am
Forum: Technical/Operations
Topic: Synthetic aviation fuels - the future for environmentally friendly aviation?
Replies: 10
Views: 1557

Re: Synthetic aviation fuels - the future for environmentally friendly aviation?

I don't think you can change kerosene into more energetic kerosene, but then again I'm not a petrochemical expert. Cars can add nitrous, but then you'd upset the rather delicate balance of jet engine combustion. Heating or cooling the fuel will not change the energy density by weight. It will simply...

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by Starlionblue
Sat Jun 19, 2021 2:10 am
Forum: Technical/Operations
Topic: Synthetic aviation fuels - the future for environmentally friendly aviation?
Replies: 10
Views: 1557

Re: Synthetic aviation fuels - the future for environmentally friendly aviation?

But if we figure out how to use hybrids for those shorter than 1 (even 2) hour flights the fossil fuel used in aviation will drop dramatically. Likely it might be cheaper for longer flights to use a percent of synthetic fuel. We just need to make significant improvements every year. Agreed. Instead...

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by Starlionblue
Sat Jun 19, 2021 12:44 am
Forum: Technical/Operations
Topic: Synthetic aviation fuels - the future for environmentally friendly aviation?
Replies: 10
Views: 1557

Re: Synthetic aviation fuels - the future for environmentally friendly aviation?

But if we figure out how to use hybrids for those shorter than 1 (even 2) hour flights the fossil fuel used in aviation will drop dramatically. Likely it might be cheaper for longer flights to use a percent of synthetic fuel. We just need to make significant improvements every year. Agreed. Instead...

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by Starlionblue
Fri Jun 18, 2021 3:33 am
Forum: Technical/Operations
Topic: For Pilots. What is Your Most Enjoyable Commercial Aircraft to Fly?
Replies: 92
Views: 13853

Re: For Pilots. What is Your Most Enjoyable Commercial Aircraft to Fly?

Flying an early swept wing plane was a great “school of hard knocks” degree. The “Hun” taught me more in 500 hours than thousands on other types. Nothing like being suddenly upside down in a scissors, wondering where the other guy went. Having later been involved in flying bizjets, it’s amazing how...

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by Starlionblue
Wed Jun 16, 2021 6:30 am
Forum: Technical/Operations
Topic: DFW - You're number ???? for takeoff!
Replies: 42
Views: 6681

Re: DFW - You're number ???? for takeoff!

Take a glimpse at KCLT (Charlotte, NC), at their peak hours. The line-up is massive. From Nation Guard C-17's to 777, A300, 737, A320, and the EMB-135/-145 and CRJ 700's Sure, but hopefully, it gets better. With progress on computer software, there will be more and more capacity-ahead planning on t...

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by Starlionblue
Tue Jun 15, 2021 11:18 pm
Forum: Technical/Operations
Topic: APU Usage
Replies: 18
Views: 3141

Re: APU Usage

In addition to what shamrock137 mentions, in some places ground power is so expensive that running the APU is cheaper.

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by Starlionblue
Mon Jun 14, 2021 11:32 pm
Forum: Technical/Operations
Topic: (Warning) Question about disturbing or morbid topic
Replies: 7
Views: 3654

Re: (Warning) Question about disturbing or morbid topic

It's strange if the victims of the IB610 accident were indeed found naked, as this accident happened during the approach phase. Finding the victims naked usually means that there was an explosive depressurization or that the victims were ejected from the aircraft while it was still in flight (f.e. ...

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