Ask The Pilot

1. In the movie World War Z, a ladder is extended from the floor of an airplane's coughpit whilst it is on a taxiway, picking up our heroes. Does such a ladder exist in any aircraft or was this Hollywood poetic license?
Zombie escape ladders are probably an option, though I don't know of anyone who has ordered them.

Many aircraft have some form of escape rope or reels from the coughpit. There may be rope ladders, though not on anything I've seen. You only need to go down, so a knotted rope is as good as anything, as long as you're not too far up. The 747 has a reel system, which runs out and brakes your descent..that's only one way, and single use.

2. I noticed the other day that 717s have their engines mounted at the rear of the aircraft instead of under the wings. I have also seen aircraft with 3 engines, with 1 in the middle of the tail. Why would engines be placed there instead of the more usual under wing position?

Whilst engines under the wings are 'more usual' now, they weren't a few decades ago. Many aircraft had their engines mounted at the tail. 727, VC10, DC9, DC10, Caravelle, Tristar, F28, lots of Russians, BAC111, Trident. In the sixties, it was pretty much the 'normal' configuration. It's still the normal configuration in business jets.

I suspect one reason that it isn't used today is simply that todays high power engines have such large fans that they wouldn't reasonably fit back there.

If you have smaller, relatively unreliable engines, it would offer a few advantages. Noise is mostly behind you. Thrust is close to the centreline, so nice engine out handling. Well clear of the ground, so less FOD. It may offer some slight CofG advantage. I'm sure wikipedia will be full of it reasons both for and against.

For the larger aircraft, in pre ETOPs days, it may have been a relatively simple way of getting around the limitations applied to twin engined aircraft, without having to go all the way to four engines. It died as soon as aircraft like the 767 appeared.
 
further to jbs answer, the proliferation of tri-jets was partly due to the relaxation of FAA rules regarding diversions in the event of an engine failure.

2 engine aircraft were subject to a 60 minute diversion rule whereas from 1964 the FAA decided tri-jets would NOT be subject to the same restriction. for transcontinental aircraft, a third engine satisfied power and diversion requirements for smaller payloads (Dc10/L1011) without the need for four engines.

todays engine reliability and power has dispensed for the need of a third engine.
 
When old Qantas planes go to retire in Victorville or elsewhere, the aircraft is ferried from Australia.
Recently a 767 retired there.
Does a twin engined jet still have to comply with ETOPS transpacific if its a ferry flight.

They are operated as private aircraft on those deliveries, so the rules are different for those flights, though I'm not sure just what rules do apply. I'd expect that ETOPs doesn't, but it wouldn't make a great deal of difference to the route. Even the 747/380 flights across the Pacific are normally within 3 hours of somewhere, and the 767 has more choices than either of those aircraft.

Do cabin crew accompany the flight to at least make cups of tea and perhaps other technical reasons?

You normally have one cabin crew member on ferries, though I've done some with none, and others with a full crew.
 
further to jbs answer, the proliferation of tri-jets was partly due to the relaxation of FAA rules regarding diversions in the event of an engine failure.

2 engine aircraft were subject to a 60 minute diversion rule whereas from 1964 the FAA decided tri-jets would NOT be subject to the same restriction. for transcontinental aircraft, a third engine satisfied power and diversion requirements for smaller payloads (Dc10/L1011) without the need for four engines.

todays engine reliability and power has dispensed for the need of a third engine.

Which can be found here Trijet - Wikipedia, the free encyclopedia
 
jb747, firstly thank you for your contribution to this forum. Your posts are very informative and interesting!

Have you watched or seen the Pilotseye TV series? I recently saw one about an Aerologic 777F flight to HKG. Love that plane! Is the 777 a plane you have flown, if not do you have a desire to fly it? The pilot in the video describes it as his favourite plane... I also recently spoke to a 77L First officer on a QR flight to MEL and he said his colleagues prefer to stay with the 777 rather than move onto the 787 that QR are now getting... your thoughts if any?
 
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Have you watched or seen the Pilotseye TV series? I recently saw one about an Aerologic 777F flight to HKG. Love that plane! Is the 777 a plane you have flown, if not do you have a desire to fly it? The pilot in the video describes it as his favourite plane... I also recently spoke to a 77L First officer on a QR flight to MEL and he said his colleagues prefer to stay with the 777 rather than move onto the 787 that QR are now getting... your thoughts if any?

I don't watch many of the aviation shows. They aren't really pitched at people like me.

I haven't flown the 777 and would certainly have liked to do so after the 767 and 747. Nevertheless, having made the move to Airbus, I'll quite happily see my career out on the 380.

I've never had any particular desire to fly the 787, probably because I see it as a step down from the 747. The 747-8 on the other hand, would have been interesting.

I have heard feedback to the effect that some 777 pilots who have flown the 787 aren't all that impressed. The 777 is a very hard act to follow.
 
The 777 is a very hard act to follow.
It will be interesting to see the delta in orders between the 777 variants and their competition over the next few years, I suspect the Dubai air show was was an indication of the trend, albeit with a slight aberration on the A380 front moving EK to the position of accounting 44% of all aircraft ordered.
 
JB 747 would it be hard to train on the 777 with your years of knowledge on 747 and 767.

Or would it be a start again type situation.
 
jb747, firstly thank you for your contribution to this forum. Your posts are very informative and interesting!

Have you watched or seen the Pilotseye TV series? I recently saw one about an Aerologic 777F flight to HKG. Love that plane! Is the 777 a plane you have flown, if not do you have a desire to fly it? The pilot in the video describes it as his favourite plane... I also recently spoke to a 77L First officer on a QR flight to MEL and he said his colleagues prefer to stay with the 777 rather than move onto the 787 that QR are now getting... your thoughts if any?

Slightly OT but I love this series, I have a couple of them on blu-ray floating around and would recommend the series to anyone with an interest in aviation, the production is very polished. I've also noticed that last week on you tube they posted a trailer for a new episode based on an MD-11 freighter, can't wait for that one!
 
JB 747 would it be hard to train on the 777 with your years of knowledge on 747 and 767.

Or would it be a start again type situation.

No, it would have been quite easy. Very likely as short as a month plus some sectors.
 
jb747,

Approximately how many A380 pilots does QF have? Just interested in the ratio of aircraft to pilots of an airline.. I believe QF have 12 A380s?

Also when you mention you will be doing a few sessions in the simulator before you commence flying again, is that the same simulator that is now available for the public to use via a QFF points redemption?
 
I'd love to see a sim session based on a zombie evacuation. Some may reconsider taking hand luggage if a zombie was making its way up the aisle
 
Approximately how many A380 pilots does QF have? Just interested in the ratio of aircraft to pilots of an airline.. I believe QF have 12 A380s?

Also when you mention you will be doing a few sessions in the simulator before you commence flying again, is that the same simulator that is now available for the public to use via a QFF points redemption?

The normal ratio will be about 7 to 1. Smaller fleets may well have a bit more overhead from the management and training side. The actual usage will affect things too. An aircraft that mainly does ultra long haul flying will have more issues with crew hitting hours limits, and so might need more pilots per aircraft. Conversely short haul may be a bit less.

QF were originally crewed for 14 aircraft, but then two were deferred. The numbers have declined since then as people have moved on or retired.

There is only one QF A380 sim, so if they're selling rides in it then it will be the same one I've been in for the past three days. Watch out for the left seat, it's quite sweaty.
 
The normal ratio will be about 7 to 1. Smaller fleets may well have a bit more overhead from the management and training side. The actual usage will affect things too. An aircraft that mainly does ultra long haul flying will have more issues with crew hitting hours limits, and so might need more pilots per aircraft. Conversely short haul may be a bit less.

QF were originally crewed for 14 aircraft, but then two were deferred. The numbers have declined since then as people have moved on or retired.

There is only one QF A380 sim, so if they're selling rides in it then it will be the same one I've been in for the past three days. Watch out for the left seat, it's quite sweaty.


So one day EK may have approx 700 A380 trained pilots if their fleet will be around the 100 mark?

I am still contemplating whether it is worthwhile burning ~ 300,000 points for 2 hours in that simulator.. How would you describe the experience compared to the real thing?
 
Hi JB,

Are the sim scenarios in any way related to real-life incidents or they are 'manufactured' to the max to test you guys ?

Did you recognize any sim sessions as being related to real incidents ?

If you were to 'fail' a session, what's the outcome?

Repeat until you pass or that's it ! You're out ???

Thanks in advance

There is only one QF A380 sim, so if they're selling rides in it then it will be the same one I've been in for the past three days. Watch out for the left seat, it's quite sweaty.
 
So one day EK may have approx 700 A380 trained pilots if their fleet will be around the 100 mark?

I am still contemplating whether it is worthwhile burning ~ 300,000 points for 2 hours in that simulator.. How would you describe the experience compared to the real thing?

That's in EACH rank. Actually EK don't use second officers, so I'd expect their numbers of captains and FOs to be much higher. So, 100 A380s (actually I don't believe they'll ever have anywhere near that, as many of the new orders will be replacements)...somewhere around 1500 to 2000 pilots.
 
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So, what happens when you come back from a few months off work…


There is a listed scale of time away, and training required, in the company manuals. Basically, less than 56 days, it will be a recency sim (more or less anything goes, just to get your hand in), plus any normal cyclic sims that you may have missed. Beyond 56 days up to 90, it will be the same, plus you’ll need to do one sector with a training Captain in the right seat. After 90 days to 180, it will be three sims, plus two training sectors, plus a route check. After that it’s left to the training department to invent an appropriate refresher course. Beyond a year, and you’ll have to do the entire course on the aircraft again.


In this case I was scheduled for 3 sim sessions. One recency, one cyclic that I’d missed, and another that was about to become due. I was originally scheduled to do a Melbourne Dubai London flight (when the rosters came out a couple of months ago), and I’ve kept that, but will have the training Captain along on the first sector.


The sims…


The recency sim had me paired with an FO who had been off for about the same amount of time.


You rarely do the preflight checks and procedures in the sim, as it simply takes up too much time. But, for a recency sim, you start as if it’s cold aircraft, and go through everything. At the end, you leave it shut down at the gate (as opposed to on the runway as we normally do).


The flying started with a circuit for both of us (using Melbourne 16). Circuits are something we don’t normally fly, and they’re always guaranteed to make you feel humble..but also to get your head moving in the right direction. The second one involved an abort, which meant that I decided at some point during the roll to abort the take off, and took the aircraft off the FO and stopped. These occur randomly in every exercise, at all speeds from very slow (which can be surprisingly hard to control) right up to V1 minus a knot or so.


After that we looked at normal takeoff, and then an ILS each. Then the same but with an engine out. After that we moved on to the low visibility sequences, which will always involve take offs with the vis around 90 metres, generally with one take off and one abort. Both are interesting as you cannot afford to let the aircraft get very far from the centreline, or else you won’t see it again. An auto land that works, and one that doesn’t. After that if there is any time left you can do whatever takes your fancy. Most like to practice the engine out, and we did the same.


You start off very rusty, but by the end are starting to feel like a pilot again.


Next morning…
This time it was a licence renewal sequence that I’d missed. The profile for this exercise was a change from all that had gone before, with much less emphasis on checking, and much more on training. So, getting something wrong was no longer sudden death, which makes you much more willing to experiment and see ‘what if’. Mostly these prove to be bad ideas, but if you’ve had a go, and it didn’t work, you do tend to remember.


The exercise started by taking off from Melbourne 09, flying out a few miles, and then joining the visual approach via SHEED (over Essendon) for a right hand base onto 34. This approach has recently been the subject of an incident with Virgin, and has, for many years, been banned by many airlines. It is day to day, bread and butter for the 737 and 767 drivers, but is rarely done on the 747 and 380, and even then it’s always at the end of a very long sector. As it turned out, both the FO and I flew it without any issues and landed on 34.


Next we jumped to Honolulu, where the scenario had us departing for LAX after a medical diversion. Weather was heavy rain. Depart, and during the climb we had a couple of fuel system related messages, followed by a fuel leak warning. Stopped the climb at FL200 and found a place to hold, whilst we worked out if the leak was real, and where it was. The ECAM had us shut down the #2 engine…fuel leak proved to be from #2 feed, and eventually drained away all of that tank’s fuel. Able to restart the engine, but now there was also doubt as to whether all of the other fuel (outer wing and tail) would actually be available. Still somewhat overweight, so we tested the availability by jettisoning it (that meant that we wouldn’t have any fuel trapped in the tail, or even worse, being pumped to the leaking tank). With about 30 tonnes left our options were Kona and Honolulu. Returned to HNL and carried out an auto land. In previous years, because sim time was always treated as precious, you always felt rushed in these exercises, but this was allowed to run its course in real time, with no pressure from the instructor to hurry things along.


Next up a couple of departures from HNL, one flown by each of us, which resulted in a TCAS resolution advisory at some point.


After that, back to the approach, but this time with go arounds being issued at varying stages in the approach sequence. Lastly some approaches that start with 40 knots of tailwind, converting to about 15 knots of crosswind at landing. It very hard to get an aircraft to slow down in the tailwind scenario, so the lesson is to always take lots of drag….amazing how flexible it can be if the first thing you take on approach is the gear instead of the slats.


Third day in the sim…and back for another cyclic, this one being the current exercise (until the end of the year).


This exercise is basically a series of smaller modules, so there’s no attempt to make it into one or two complete flights. Quite a few IPs, basically the sim just jumping to a spot in space, and configuration, without you having to get it there. Saves time, but it can be disorienting.


It starts off in Stansted in the middle of winter. So, some discussion about de-icing, and then the procedures needed. Constant swaps between the FO and Captain as to who was flying, so I probably don’t have this in the right order.


This one went right into it, with a major issue on the first take off. Just after rotate, a windshear warning, with the displayed wind rapidly rising to 60 knots of tail wind. Trying to fly the windshear profile and the aircraft was extremely unstable, and switched to alternate law in the middle of the process. We then realised that the airspeed was actually spurious (across the coughpit) and that the windshear warning was a spurious consequence of that failure. So, settled the aircraft down and flew out at a constant pitch until we were well clear of the ground. Then we used GPS ground speed and altitude to let us level out, and then ran the ECAM for unreliable airspeed. That removed the speed display and replaced it with angle of attack, and also gave us GPS altitude on the primary displays. The exercise ended at that point, but it’s relatively straightforward to land without an IAS display. A very nasty introduction though, as you simply cannot try to double guess a windshear warning.


Now that we had in in alternate law, we tried some stalls at low level, as we turned base for a landing in a visual circuit. So, recover from stall, and try not to hit the ground…..


Next the FO flew a take off. Engine failure after V1 (right on rotate) and then clean up and come back for an ILS. That resulted in a go around, for which they wanted you to fly the normal (as opposed to engine out) profile. Land off the next attempt.


Now to low vis again, this time with an engine failure and continue at max weight. Get rid of all of the fuel and come back for yet another 3 engined ILS and go around. Land again of the next attempt.


After a break, back into flight to look at some engine issues. High vibration and engine surging/stalling. Then looking at some of the automatic responses from the aircraft when it thinks an engine is shut down (like automatically reducing the target IAS to the engine out target, without any pilot input).


Next we looked at the aircraft behaviour in some close to stall cases. In one situation, whilst clean at relatively low speed (but still within what many might consider acceptable), we rolled into a turn….and then shortly thereafter simply selected full speed brake. That had the effect of raising the stall speed to the point that the aircraft automatics responded by rolling off the bank, retracting the speed brake, and going to ALPHA FLOOR…automatically taking TOGA power and locking it there. After that a bit of a play with the ALPHA protection system (select idle, put full nose up, and just hold the stick all the way back)…all very lovely. And then we did the same thing with the aircraft in alternate law, when, of course, you no longer have the stalling protection, only as stall warning. Ultimately we moved to altitude, and tried it in direct law, with the trim being manually selected to full nose up. From that scenario, you do not have enough authority through the elevator to get the nose to come down to break the stall, so you need to use some bank to help get the pitch under control…whilst retrimming the tailplane as fast as you can. If you don’t get it back quickly, you’ll end up in the AF447 situation, with a deep stall.


From there another bit of low vis, but this time resulting in a high speed abort, engine fire, and evacuation. Then you go home.

 
Are the sim scenarios in any way related to real-life incidents or they are 'manufactured' to the max to test you guys ?

They often include facets of real incidents, and real events do shape the way the sims are run. For instance, in years past, it was generally taken that in a 747-400 it would be best to fly any emergency descent with the autopilot engaged, and it was ALWAYS practiced that way. Of course, when one really happened, one of the consequences was loss of all of the autopilots, so training and reality diverged almost immediately. Now, when this exercise is practiced, you may, or may not, have an autopilot and adjust as necessary.

Pushing people to the max serves no valid training purpose. Nor testing for that matter. You can always push hard enough to break anyone.

Did you recognize any sim sessions as being related to real incidents ?

AF447 has driven quite a few exercises lately, and both QF 30 and 32 have appeared in part. There is no point in fully duplicating any of them...just pick the interesting bit.

If you were to 'fail' a session, what's the outcome?

Repeat until you pass or that's it ! You're out ???

Don't make a habit of it. The initial response would simply be a repeat, but do it again, either then or later, and you'd certainly be looked at by the standards people. People have been 'out'.
 
Another one for JB... was out walking the dawg yesterday and a couple of JQ A320's flew over within a period of about 10 mins and it sounded like the engines spooled down, up and down again. Is this common on the way in to land? (we're probably about 10 mins out of BNE for planes coming in from the north and landing on runway 01)

The A320 has an odd sound. I used to live under one of the approach paths at Melbourne, and every A320 sounded like it was spooling up and down. Whilst the engines can be quite active on any approach, I think, in this case, that it was some form of sound interference.
 
I was on a flight where the flaps were extended for take off, what is the reason for this?

The flaps are normally extended for take off.

Flaps serve a couple of purposes, at different stages of the flight. Basically though, by giving the wing both more curvature, and more area, they make it more of a low speed device, and dramatically lower the stall speed.

To take off without flap would involve a much longer take off roll, and also a higher pitch attitude.

Varying configurations of slat, leading edge flap, and trailing edge flap can be used. Sometimes we'll have lots of runway, but some form of obstacle, and in that instance we may be better served by using less flap and taking off at a higher speed. But, with the obstacle very close, more flap maybe the best answer. On a shorter runway, more flap will give us a shorter roll, but worse overall climb out performance. It's a balance between runway length and distance to any obstacle.

Take off trailing edge settings are normally quite mild, and equate to the amount of flap used in the early part of an approach. The very extreme flap settings used in landing do give even more reduction in the approach speed, but they also increase the drag quite dramatically, so allowing the engines to operate a bit further from idle, which gives a better power response (that's also why some aircraft land with speed brakes extended).
 
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