Search found 21130 matches

by Starlionblue
Mon Aug 08, 2022 11:27 pm
Forum: Technical/Operations
Topic: The future? Bigger jets?
Replies: 24
Views: 3792

Re: The future? Bigger jets?

As a passenger back in the day, if we were anticipating a late arrival, the Captain would apologize and say something to the effect of "we're gonna speed up to make up some time." ...was that really a thing? Yes, that was a thing. However, back in the day there was more margin, and probab...

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by Starlionblue
Mon Aug 08, 2022 3:55 am
Forum: Technical/Operations
Topic: A321 Question
Replies: 4
Views: 770

Re: A321 Question

Hello, I’ve got a somewhat technical question regarding the A321. What’s the difference between the A321-111 and 211? Are there at least any visual differences? I was told that they have the same engine. Thanks The last three digits are coded as follows: - First digit. Version. - Second digit. Engi...

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by Starlionblue
Sun Aug 07, 2022 1:39 am
Forum: Travel, Polls & Preferences
Topic: Question on boeing B777-300
Replies: 25
Views: 1816

Re: Question on boeing B777-300

The 777 has an incredible safety record. All FAA Part 121 aircraft with more than 30 seats require TCAS II and many 10-30 seat turbine aircraft operating Part 135 must as well. In EU airspace, any aircraft built after 2012 greater than 5700 kg in weight must have TCAS, as must all air carrier opera...

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by Starlionblue
Sat Aug 06, 2022 3:52 am
Forum: Technical/Operations
Topic: The future? Bigger jets?
Replies: 24
Views: 3792

Re: The future? Bigger jets?

Airliners are flying slower than they did 30 years ago. What the? Bring back the Concorde. Please!!!!!!! Slower? Really? 767 was cruising .80. DC-10 at .82. 747 at .85. NB: 737 Classics at .74, BAe 146 at .70. I believe Fookers 70/100 .72. Today, majority of WB cruise at .85, 777 at .84. NB: most a...

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by Starlionblue
Fri Aug 05, 2022 2:36 am
Forum: Technical/Operations
Topic: Taking off without slats/flaps set; possible?
Replies: 34
Views: 2918

Re: Taking off without slats/flaps set; possible?

Commenting on AngelsDecay, the original DC-9, the -10 series, did not have leading edge slats. They were added from the -30 series onward to improve performance (ex. the -20 is a -10 fuselage with -30 wings). It probably wasn't SOP or done very often, but I talked with several pilots back in the da...

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by Starlionblue
Wed Aug 03, 2022 1:58 pm
Forum: Technical/Operations
Topic: Question on aircraft tires
Replies: 15
Views: 1328

Re: Question on aircraft tires

IIRC there is a patent to add little scoops on the tires to spin them up from the airflow. The issue is you would also spin them when you take-off, too. You'd therefore have to brake them more on retraction and I guess brake wear is more costly than tire wear. You'd also be adding weight to the gea...

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by Starlionblue
Wed Aug 03, 2022 1:52 am
Forum: Technical/Operations
Topic: Question on aircraft tires
Replies: 15
Views: 1328

Re: Question on aircraft tires

This is asked with some regularity on this forum. Simple answer: If it saved money, it would be done. Currently, the cost motor solution seems to be more than the cost of extra tyre wear. You'd also introduce additional threats to the operation. What if the mains on one side spin up and the other on...

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by Starlionblue
Sat Jul 30, 2022 10:00 am
Forum: Technical/Operations
Topic: Flexible Light-Weight Composite Ring Ducts for Propeller Aircraft
Replies: 5
Views: 759

Re: Flexible Light-Weight Composite Ring Ducts for Propeller Aircraft

Like spiroid winglets? I suspect the tradeoff is the same as always. Design, manufacturing and maintenance cost versus efficiency gains versus weight. The prop tip might not be the best place to place something as "fine" as this. It might well have to be too heavy meaning the prop will nee...

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by Starlionblue
Sat Jul 30, 2022 2:46 am
Forum: Technical/Operations
Topic: A320Neo new landing light location
Replies: 17
Views: 5277

Re: A320Neo new landing light location

So, from a pilot perspective: Are landing lights designed to help others see an approaching aircraft better or to see ahead once on the ground (I can't imagine they help illuminate much in the sky). As Flow2706 says, it's both to see and be seen. They're easily visible to crossing traffic in VMC. O...

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by Starlionblue
Fri Jul 29, 2022 1:22 am
Forum: Technical/Operations
Topic: Why no single-engine GA aircraft with contrarotating propellers?
Replies: 40
Views: 2884

Re: Why no single-engine GA aircraft with contrarotating propellers?

kalvado wrote:
Just a crazy question... Would it be feasible to have 2 counter rotating turbine stages and shafts to drive 2 props?


I suppose it would be possible. But I think you'd run into issues keeping both turbines at the ideal speed for the respective prop..

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by Starlionblue
Wed Jul 27, 2022 3:43 am
Forum: Technical/Operations
Topic: Why no single-engine GA aircraft with contrarotating propellers?
Replies: 40
Views: 2884

Re: Why no single-engine GA aircraft with contrarotating propellers?

All that added weight, complexity and cost just to avoid adding a bit of right rudder on takeoff. What on earth are you pricing your right leg muscles at? :lol: Except that during stalls, the slipstream effect of the single-prop rotation induces spins and thus crashes. Yes, you can train to apply r...

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by Starlionblue
Wed Jul 27, 2022 2:31 am
Forum: Technical/Operations
Topic: What is faster in baggage loading, bulk loaded or container loaded?
Replies: 21
Views: 2848

Re: What is faster in baggage loading, bulk loaded or container loaded?

How are the cans loaded? By that, I am asking: are they just smaller versions of a cargo hold where the bags are stacked as they fit? Or, are there little shelves, or sub-compartments with mesh nets or some such across them? Bulk hold of an A330 here. https://youtu.be/nQbO0UbhK9M Very boring instru...

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by Starlionblue
Sun Jul 24, 2022 2:08 am
Forum: Technical/Operations
Topic: Triple-Simultaneous Landings
Replies: 32
Views: 4277

Re: Triple-Simultaneous Landings

What are some of the non-US airports that can handle triple simultaneous landings? I know IST can. I’m pretty sure it can be done at AMS, but I’ve never seen it before and I don’t think they use more than three runways at a time. How about PKX, PEK, PVG and KUL? I think CDG can theoretically allow ...

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by Starlionblue
Sun Jul 24, 2022 2:05 am
Forum: Technical/Operations
Topic: What is faster in baggage loading, bulk loaded or container loaded?
Replies: 21
Views: 2848

Re: What is faster in baggage loading, bulk loaded or container loaded?

Cans are faster at the aircraft itself as they can be pre-loaded with "early" luggage and ready to go. But I don't know if cans save time overall. All (?) widebodies also have a bulk cargo that is hand loaded and does not use cans. This adds flexibility for last-minute bags, for example. ...

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by Starlionblue
Sat Jul 23, 2022 7:19 am
Forum: Technical/Operations
Topic: 737 Bounced landing and then go around -serious incident?
Replies: 21
Views: 2373

Re: 737 Bounced landing and then go around -serious incident?

I don't remember the co. making a special designation about it. A hard landing you go around. Pitch +7deg max pwr and hold it. This came about after Narita. I think the proper call out was go around and not rejected landing. That's airline specific, and possibly type specific, IIRC. I think "g...

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by Starlionblue
Sat Jul 23, 2022 7:13 am
Forum: Technical/Operations
Topic: AA6092 20JUL - TCAS maneuver - how common?
Replies: 11
Views: 1841

Re: AA6092 20JUL - TCAS maneuver - how common?

They're not uncommon. So common, in fact, that the A350 has auto-TCAS as standard and the A330 as an option. The A350 even has auto-TCAS during an automated emergency descent. As for how many events a year, I don't really know. I've seen TAs but not an RA yet. One more reason to watch your climb/des...

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by Starlionblue
Fri Jul 22, 2022 5:33 am
Forum: Technical/Operations
Topic: Why no single-engine GA aircraft with contrarotating propellers?
Replies: 40
Views: 2884

Re: Why no single-engine GA aircraft with contrarotating propellers?

Out of curiosity, how much does the proximity of the two propellers in the coaxial configuration affect performance? I imagine there would be a fair amount of turbulent air around both props. Or maybe just the aft prop. Or maybe not? There is of course an effect on the rear prop. But net-net perfor...

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by Starlionblue
Fri Jul 22, 2022 12:41 am
Forum: Technical/Operations
Topic: What is faster in baggage loading, bulk loaded or container loaded?
Replies: 21
Views: 2848

Re: What is faster in baggage loading, bulk loaded or container loaded?

Cans are faster at the aircraft itself as they can be pre-loaded with "early" luggage and ready to go. But I don't know if cans save time overall.

All (?) widebodies also have a bulk cargo that is hand loaded and does not use cans. This adds flexibility for last-minute bags, for example.

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by Starlionblue
Fri Jul 22, 2022 12:32 am
Forum: Technical/Operations
Topic: Why no single-engine GA aircraft with contrarotating propellers?
Replies: 40
Views: 2884

Re: Why no single-engine GA aircraft with contrarotating propellers?

Out of curiosity, how much does the proximity of the two propellers in the coaxial configuration affect performance? I imagine there would be a fair amount of turbulent air around both props. Or maybe just the aft prop. Or maybe not? There is of course an effect on the rear prop. But net-net perfor...

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by Starlionblue
Fri Jul 22, 2022 12:27 am
Forum: Technical/Operations
Topic: 737 Bounced landing and then go around -serious incident?
Replies: 21
Views: 2373

Re: 737 Bounced landing and then go around -serious incident?

As per Boeing lingo, anything below MDH/DH till touchdown is a “rejected landing” and after touchdown it’s a “balked landing” :geek: They differentiate it, because in Boeings TOGA button does not work after t/d, so the technique for doing it is slightly different. Nevertheless, as others mentioned,...

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by Starlionblue
Thu Jul 21, 2022 6:55 am
Forum: Technical/Operations
Topic: Taking off without slats/flaps set; possible?
Replies: 34
Views: 2918

Re: Taking off without slats/flaps set; possible?

You can certainly apply take-off power without having the flaps or slats set. You would also get the take-off configuration warning in the process. On Boeing non-737 models, the Autothrottle will not engage for takeoff if the Flaps are not in a valid takeoff setting. On the 777-9, the Autothrottle ...

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by Starlionblue
Wed Jul 20, 2022 7:01 am
Forum: Technical/Operations
Topic: Taking off without slats/flaps set; possible?
Replies: 34
Views: 2918

Re: Taking off without slats/flaps set; possible?

https://en.wikipedia.org/wiki/Spanair_Flight_5022
-->

zeke wrote:
Do I remember an accident in Spain on a MD80 series with no devices deployed, not sure if they had a config warning.


The Spanair 5022 crash. Seems the takeoff warning system did not work properly.

https://en.wikipedia.org/wiki/Spanair_Flight_5022

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by Starlionblue
Wed Jul 20, 2022 3:29 am
Forum: Technical/Operations
Topic: Taking off without slats/flaps set; possible?
Replies: 34
Views: 2918

Re: Taking off without slats/flaps set; possible?

I travel frequently and always take a window seat. Not only to enjoy the view while flying, but also to ensure that the flaps/slats are set for takeoff. There were a few accidents in the 80s/90s where the crew were distracted and didn't set them properly and ended up crashing during take off. Those...

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by Starlionblue
Wed Jul 20, 2022 3:21 am
Forum: Technical/Operations
Topic: 737 Bounced landing and then go around -serious incident?
Replies: 21
Views: 2373

Re: 737 Bounced landing and then go around -serious incident?

As far as I know, you can go around at any point in the approach and landing up until the thrust reversers are deployed. Once the thrust reversers are deployed, a full-stop landing must be made. If you tried to go around after that point and you have a thrust reversers that doesn't stow for some re...

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by Starlionblue
Wed Jul 20, 2022 12:51 am
Forum: Technical/Operations
Topic: 737 Bounced landing and then go around -serious incident?
Replies: 21
Views: 2373

Re: 737 Bounced landing and then go around -serious incident?

Bounces can be insidious as you're now back in the air, but at a lower airspeed than is ideal for landing, with decreased lift. The second touchdown might be too hard for comfort. If you've bounced twice, definitely go around. As mentioned above, going around is the safe option. This happens every d...

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by Starlionblue
Mon Jul 18, 2022 9:34 am
Forum: Technical/Operations
Topic: Question on flying GA into El Paso, TX
Replies: 10
Views: 1099

Re: Question on flying GA into El Paso, TX

An ATC unit controlling another country's airspace is very common, for example where airports are near international borders. EuroAirport Basel Mulhouse Freiburg, for example, is in France, at the border between France, Switzerland, and Germany. It is administered jointly by France and Switzerland. ...

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by Starlionblue
Sat Jul 16, 2022 5:54 am
Forum: Technical/Operations
Topic: Fuel consumption-Climbing versus Cruising
Replies: 7
Views: 1397

Re: Fuel consumption-Climbing versus Cruising

On short hops: I've heard that an airliner's most efficient flight profile is to just climb to the highest possible altitude, at which a largely idle descent to the destination (taking ATC conditions at the arrival airport into account) may occur. Is this true? Almost. The optimum altitude is below...

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by Starlionblue
Fri Jul 08, 2022 4:22 am
Forum: Technical/Operations
Topic: Havana Airport Operation Question
Replies: 8
Views: 1641

Re: Havana Airport Operation Question

I see.

The only reasons I can think about are stowaways, or in more extreme cases theft of cargo. I've heard of the latter happening, but not in HAV.

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by Starlionblue
Fri Jul 08, 2022 1:06 am
Forum: Technical/Operations
Topic: Havana Airport Operation Question
Replies: 8
Views: 1641

Re: Havana Airport Operation Question

Can't say I've never seen this when operating.

Was this during taxi?

A Havana thing?

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by Starlionblue
Mon Jul 04, 2022 1:04 am
Forum: Technical/Operations
Topic: Colleges to Become a Commercial Pilot?
Replies: 17
Views: 1370

Re: Colleges to Become a Commercial Pilot?

I'm an ERAU grad with an AMT degree from a long time ago. Back then it was expensive compared to a CC, but was on par with most out of state 4 yr schools. The flight program has some astronomical costs now. I have a lot of friends that were in the flight program, One thing I have noticed through th...

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by Starlionblue
Sat Jul 02, 2022 12:29 am
Forum: Technical/Operations
Topic: Colleges to Become a Commercial Pilot?
Replies: 17
Views: 1370

Re: Colleges to Become a Commercial Pilot?

Fellow Sun Devil here too. Absolutely no one cares where you went for college. There is no 'harvard of the skies'. Go wherever is the cheapest for you. Just to add on...I graduated from ASU with the exact same certificates/ratings as an Embry-Riddle graduate and probably paid $100-120k less than th...

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by Starlionblue
Fri Jul 01, 2022 11:58 pm
Forum: Technical/Operations
Topic: Colleges to Become a Commercial Pilot?
Replies: 17
Views: 1370

Re: Colleges to Become a Commercial Pilot?

Fellow Sun Devil here too. Absolutely no one cares where you went for college. There is no 'harvard of the skies'. Go wherever is the cheapest for you. Just to add on...I graduated from ASU with the exact same certificates/ratings as an Embry-Riddle graduate and probably paid $100-120k less than th...

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by Starlionblue
Fri Jul 01, 2022 1:22 am
Forum: Technical/Operations
Topic: Installing/ Uninstalling ETOPS On An Aircraft
Replies: 64
Views: 9733

Re: Installing/ Uninstalling ETOPS On An Aircraft

As mentioned above, ETOPS isn't a piece of software/hardware that can be installed/uninstalled on a particular aircraft. It's a certification for the entire airline organization including the aircraft, the flight crew, the dispatch, the maintenance... Further details and explanations in this Wendov...

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by Starlionblue
Sun Jun 26, 2022 8:52 am
Forum: Technical/Operations
Topic: Life as a Pilot
Replies: 4
Views: 2116

Re: Life as a Pilot

Hi! I made a post some years ago, which I am pasting in full below. Hopefully, it is not too dated. All my "opinion". The main thing to think about if you're contemplating a career as a pilot is lifestyle. For me, not working nine-to-five is a big plus. I don't like regular hours. The down...

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by Starlionblue
Sat Jun 25, 2022 12:27 am
Forum: Technical/Operations
Topic: Air France 447: 13 years on
Replies: 56
Views: 6194

Re: Air France 447: 13 years on

There are really people equivocating about the need for razor sharp, hand flying, stick and rudder skill? GalaxyFlyer is right - in the end, that is what it comes to. Know the systems, know how to fly the airplane if the systems won't do it. Very simple. This. So very much this. As mentioned, also ...

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by Starlionblue
Fri Jun 24, 2022 12:21 am
Forum: Technical/Operations
Topic: Crew Rest Question
Replies: 7
Views: 1824

Re: Crew Rest Question

Lemmy wrote:
Starlionblue wrote:
The rules vary per jurisdiction. This is for my operator.


Are these rules set by the regulators or negotiated by the pilot's union? Or both?


Yes. :lol:

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by Starlionblue
Thu Jun 23, 2022 3:25 am
Forum: Technical/Operations
Topic: Crew Rest Question
Replies: 7
Views: 1824

Re: Crew Rest Question

The rules vary per jurisdiction. This is for my operator. - Pilots may use a business class seat for rest. However. time spent resting in a seat counts less than in a bunk. That is, an hour spent resting in a seat gives you less duty time extension than an hour in the bunk. - Cabin crew may also re...

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by Starlionblue
Thu Jun 23, 2022 3:20 am
Forum: Technical/Operations
Topic: Aircraft headings, bearings, and such.
Replies: 31
Views: 2032

Re: Aircraft headings, bearings, and such.

On the 'bus, if you want to make the autopilot turn "the long way around" is to turn the heading knob until your commanded heading 150-160 degrees in the direction of the turn. Once the aircraft is 20-30 degrees from the commanded heading, turn more until you get to the heading you want. I...

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by Starlionblue
Tue Jun 21, 2022 11:40 pm
Forum: Technical/Operations
Topic: Crew Rest Question
Replies: 7
Views: 1824

Re: Crew Rest Question

The rules vary per jurisdiction. This is for my operator. - Pilots may use a business class seat for rest. However. time spent resting in a seat counts less than in a bunk. That is, an hour spent resting in a seat gives you less duty time extension than an hour in the bunk. - Cabin crew may also res...

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by Starlionblue
Tue Jun 21, 2022 11:36 pm
Forum: Technical/Operations
Topic: Aircraft headings, bearings, and such.
Replies: 31
Views: 2032

Re: Aircraft headings, bearings, and such.

So, if you were flying a due north and were instructed to turn to 270 degrees, would you go right three quarters of the way around the circle , or turn left 90 degrees? As you can tell, I'm not a pilot, but it seems to me that in situations where the flight is told to make numerous course changes, ...

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by Starlionblue
Tue Jun 21, 2022 12:03 am
Forum: Technical/Operations
Topic: Aircraft headings, bearings, and such.
Replies: 31
Views: 2032

Re: Aircraft headings, bearings, and such.

As mentioned, navigation is referenced to magnetic north (true north in some particular areas near the magnetic north pole). Relative Bearings are used for traffic awareness sometimes, but expressed in "clock" terms. E.g. "traffic at your two o'clock, same level". Always measured...

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by Starlionblue
Fri Jun 17, 2022 5:51 am
Forum: Technical/Operations
Topic: How does the IFE display things like altitude and speed
Replies: 50
Views: 4840

Re: How does the IFE display things like altitude and speed

And of course finding all the relevant information requires IFE system manual and full 737 wiring diagram. But it is usual "through obscurity" thing I have a better and more interesting question for you, though. Why flight data is available to IFE at all? Apparently, when 737 systems were...

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by Starlionblue
Fri Jun 17, 2022 2:43 am
Forum: Technical/Operations
Topic: How does the IFE display things like altitude and speed
Replies: 50
Views: 4840

Re: How does the IFE display things like altitude and speed

That's what many IT guys said. Next thing they learn is it would take $1M to a Bitcoin account to get things back to normal. Thinking about it, and assuming 737 being a Ruby Goldberg machine with WWII style archite тоcture, IFE being a total afterthought, how messing up things is possible. See, bot...

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by Starlionblue
Thu Jun 16, 2022 8:20 am
Forum: Technical/Operations
Topic: How does the IFE display things like altitude and speed
Replies: 50
Views: 4840

Re: How does the IFE display things like altitude and speed

Ok, so you are not familiar with specifics of NG mask deployment system? Ad hominem fallacy. You're not refuting the actual point. Regardless of how mask deployment works on the NG, the guy in question was lying. There is no way to do what he claimed. That's what many IT guys said. Next thing they ...

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by Starlionblue
Thu Jun 16, 2022 3:08 am
Forum: Technical/Operations
Topic: How does the IFE display things like altitude and speed
Replies: 50
Views: 4840

Re: How does the IFE display things like altitude and speed

So you arguments boil down to this guy uses incorrect terminology hence cannot be right. No, because he was caught lying red handed. He tweeted in flight he was on an aircraft and was going to set off the passenger oxygen EICAS. After the United 737 landed, he was arrested, they seized and listed a...

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by Starlionblue
Wed Jun 15, 2022 12:28 am
Forum: Technical/Operations
Topic: Tail Anti-Ice leading edge question.
Replies: 20
Views: 2068

Re: Tail Anti-Ice leading edge question.

Going back to the metal strip on the fin leading edge, I am fairly sure all A350s come with it. Some operators may just choose to paint it for aesthetics.

I can't think of any operators with the strip painted. Which ones are you thinking of?

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by Starlionblue
Wed Jun 15, 2022 12:23 am
Forum: Technical/Operations
Topic: Decals and flags
Replies: 8
Views: 2573

Re: Decals and flags

Thanks for posting! Seems a bit like placing a screen protector on a phone, except way less forgiving! Maybe more like placing a decal on a scale model?

How many flight hours/cycles/months does such a decal last before wearing out? Does it depend on placement?

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by Starlionblue
Wed Jun 15, 2022 12:20 am
Forum: Technical/Operations
Topic: How does the IFE display things like altitude and speed
Replies: 50
Views: 4840

Re: How does the IFE display things like altitude and speed

It is definitely possible to achieve one-way airgap. no question about that. Was it properly achieved, though? Interface you show would definitely work that way. Can it be used on the aircraft? Can it be certified for in-flight use? Would the cost of such certification for the single point of use b...

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by Starlionblue
Tue Jun 14, 2022 12:09 pm
Forum: Technical/Operations
Topic: How does the IFE display things like altitude and speed
Replies: 50
Views: 4840

Re: How does the IFE display things like altitude and speed

Last time I was talking to an IFE vendor engineer, and he was saying that the interface unit with the aircraft is physically incapable of outputting any signal to the aircraft side so this should not be a problem. This is easy to achieve by the way. My previous job was telematics for tanker trucks ...

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by Starlionblue
Mon Jun 13, 2022 11:41 pm
Forum: Technical/Operations
Topic: A330 - After Landing Procedure
Replies: 5
Views: 1989

Re: A330 - After Landing Procedure

Going back to the "icing conditions" you mentioned. If you suspect contamination is possible, e.g. after landing on a snowy runway, you would not retract the slats/flaps at all until you're at the gate and they can be inspected for contamination. You can then retract them with pressure pro...

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