I'm going to make myself a target now...
I don't think this is an "over reliance on automation" issue. It is a "What do you do if your air data system supplies some or totally corrupt data?" problem. No matter what aircraft you fly - glass, steam or otherwise, you have to have something to hang your hat on. A modern aircraft is capable of generating flight path data independent of the air data system and maybe we should start to use this information to get back to "Straight and Level." From a stable platform which is under control (and probably being manually flown) it should be possible to start to work out what has failed and take appropriate action. PM |
piltdown man, at last someone with the vision to see beyond the usual nonsense about automation.
man and machine is the safest way forward not man or machine. |
There was a guy on the NOVA?? or some such program, who showed us what he would have liked the 447 PF to be doing. He suggested 5 degrees nose up, and a specific power setting. Clearly, this is only the start of containing the situation.
The two and four engined turboprops I flew were all much of a muchness in terms of basic control, but when on a slippery jet, it was quite a different story. One thing on the BAC 1-11, was the unpleasant resonant frequency of the wings. They really would twang sometimes, and the FD 108 would become a vertical bar of colours for several seconds. This made accurate interpretation of the pitch very difficult if not impossible in the short term. Needless to say, this could be repeated over and over for several minutes and there were times it seemed automation might be able to do a better job. However, there was one thing the sensors didn't take into account, and that was vertical acceleration. Firstly, I have to say I don't know if modern kit inputs vertical acceleration data. I know we have it drummed into us to forget seat-of-the-pants flying, and believe the instruments, but in our scenario, we are already down to basics. Suggesting a set pitch and power leaves me a little worried. I found anticipating the power needed, by the feel of the vertical acceleration was something that put me ahead of the game. There is no way in hell you can look to EPRs, HP rpms or N1s for such human input, it has to be initiated very quickly and with only moderate accuracy. I hasten to add, this movement had to be contained within a small range. Throttle position was available and meaningful to us on those simple machines, and when I read of throttles that don't move, and of insistence on A-T, I just feel glad I was flying in a different era. And what is also obvious, it needs the kind of practice a box fixed to the planet can never provide. Pilots must be allowed to fly their aircraft on a regular basis - especially in rough air. |
Sadly, FBW newbies haven't had the good luck to fly aircraft that require basic power, attitude equals performance.
If it's all gone wrong this will still keep you out of trouble, or reduce your risk of getting into more of it IMHO. Auto thrust with non moving levers is not the best idea. I've flown AC with both and dislike them [non movers], especially on rough old night into a nastey island with a big 'hill' next to the runwayand your speed trend arrow doing the hokey kokey!!!!!:eek: |
I have flown Boeing and Airbus and, I do not care if the Thrust levers move or not as long as I see the N1s and EPRs in my normal scan.
Flying a FBW aircraft, is exactly the same as a conventional aircraft. And nothing prevent the pilot to disconnect the AP ( and the Autothrust) and fly a manual approach with the FD Off, unless the Cie decides that AP, FD and A/T shall be On all the time which is not a good idea because it prevents pilots to maintain their manual skills... When the approach is "rough" due to high winds and turbulence, I disconnect A/T and AP and fly it maually it is a lot easier, in my view, because you have a better control on speed. |
My first jet was the BAC1-11 and following the advice of an old but not bold pilot I always had a copy of that page of the ops manual that showed the table for flight with unreliable airspeed on my clipboard. Carried it through until my final flight on the -400 and because I looked at it fairly often, it being constantly 'in view', I subconsciously committed just a few of the speed, body angle and power settings to memory, it can't hurt.
I still maintain that a large part of the current problem with automation is that it is not taught and practiced sufficiently to the point that pilots are competent and confident to utilise the automation throughout its envelope; that is a management and training issue and in almost every case will come back to a budget issue. |
When automation works it is fantastic. When it quits working turn it off because it can hurt you. Manual flying skills should still be required for all airline pilots. Airlines that rely on automation for 250 hr pilots to fly passengers is crazy. Simple loss of airspeed procedures for all airliners gave a chart for weight, altitude, attitude and power to survive. Air France put their flight into the Atlantic with their Airbus recently. Did they have that training? Why do we have to dumb down our procedures to hire unqualified junior pilots. We have plenty of qualified pilots in the US to fill these positions but for a reasonable salary. We are not short of pilots, just short of airlines that will pay them what they should. I only know about the US so hope European pilots are equally qualified.
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I'm talking about the new hire FO's. Not captains.
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through until my final flight on the -400 This is not good, nobody ever told me it would end, I am devastated... |
bubbers...everyone has more time to type because they are so autopilot dependent.
I know you know what flying is all about...I mean it. BUT I really miss the pride one took in their hand flying and while hand flying...they managed to navigate and even eat a ham sandwich. sheesh... |
Try and enjoy your final trip as much as possible, I picked a four sector SIN-AMS-JFK-AMS-SIN for my final run. Chatted up the hotels in advance and managed an even more superior room. Unbeknown to me my wife arranged a good photographer with airside clearence to do the whole caboodle in AMS, still photography. Check-in, briefing, the final walk down the jetway, external, flight deck, a/c departing so I have a permanent record. Once retired stay involved if you can, airshows etc. and other volunteer work, stay busy.
Sorry, considerable thread drift!:O |
I don't think this is an "over reliance on automation" issue. |
No, that's called poor training and standards.
PM |
No, that's called poor training and standards. |
"Once retired stay involved if you can, airshows etc. and other volunteer work, stay busy."
Unashamed plug, but I stay involved by volunteering as a youth-mentor member of the Tuskegee Airmen Inc.'s Red Tail aviation program. Look into it. And yes, I'm Caucasian. |
I don't disagree with any of the above - even the Last Trip advice !! - but let's not forget that every generation has it's own problems to address, in ways we 'oldies' can only imagine now.
I was once told that I would never make a navigator until I'd been over Berlin with the shells coming through the cockpit as I tried to get 3 different drift readings from the drift sight as the pilot tried to keep the aircraft steady on heading, to assess the wind for the flight home. I never had to do that. Later I despaired of my own nav. students wrestling with the sextant, and Grid navigation, over the Pole. They never had to do that. Along came INS, and then FMS and now GPS, they don't even have to fight HF radio - do they ? ( Delhi, Delhi, this is Bombay - Shut Up Delhi ! ) I blame Bill Gates, life was easier before computers - even in the shops !!( at least people could do mental arithmetic ) |
I bet most of you lot never had to hand swing a propellor either. ;)
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hey metroman...do they call you, "Lefty"? (just kidding).
everyone should be able to fall back to a previous method or technology...TCAS out? look out the damn window. even lindbergh lost his compass system at one point...so he put the north star above his left shoulder and still found Dingle Bay ok! |
Interesting thread, interesting arguments.
I go with what I have experienced the last few years. Some examples: - In our big company there is not a weekly incident report without unstabilized approaches. The overwhelming reason given is "short cuts and short vectors". Now either there is a lack of capability to calculate distance vs. altitude or a lack of capability to fly the aircraft down slightly higher angles. Mostly both. - When a AT goes u/s, the approaches often go to at least "uncomfortable". A frenzied scan between the speed on the PFD and the N1/EPR on the engine display leads to pitches between 0°and 8°, bank of more than 10° l/r on the final ILS stage. - Visual approaches and circlings are treated as demanding procedures (when I started aviation they were the more simple approaches than CatII ...). I observe an abundance of special techniques with the basically obsolete FMC, like drawing 3nm circles, abeam points, altitude reminders etc. Additionally there is a teaching to use/program the FD throughout the whole procedure. Although it might help a bit, people often try to fly it more than looking outside. All this ends in an over reliance on such reminders and on the FD and consequentially a loss of general overview of the simple approach happens. - The AP is mostly switched off at ~500ft. Initially the FD is religiously followed, but soon it is slightly lost, ~200ft, because the lookout only starts there. The aiming point gets lost down the runway, with very little corrective action, as the "feeling" for the aircraft could never be established in such a short and already fully configured time. The landings are often smooth, but seem somewhat uncontrolled and mainly long. I do not want to venture into discussing why, just a personal observation to sustain the dire need for attention to the issue of the thread, the issue of automation correlated to the loss of skill. |
Originally Posted by BOAC
(Post 6149167)
- isn't that what this is all about? 'Over-reliance on automation' - just WHERE do you think that comes from then?
Are you implying, that the "magenta FMS whizz no-pants-in-seat" set is actually not a legion of underachieveing brats but rather a product of a generation of greyhair examiners and course developers who (under pressure to reach the required output levels and cost competetivness) took the easy way out. Using automation without need to explain what it does and what never was intended to do? :) Yours, FD (the un-real) |
In Australia, a regional operator flying Saab 340 "strongly recommends" (my italics) the autopilot be engaged at 200 feet (min engagement height) after take off and disengaged at 50 feet on landing. This is taking use of automation to a ridiculous degree and does nothing for flight safety. On the contrary. As this airline specialise in training its own cadets from zero hours to right seat of the Saab, it is living proof that manual flying is seen by this operator as an unnecessary impost. Despite numerous warnings from international flight safety authorities that automation dependancy is an increasing concern, clearly some operators don't see it that way.
The local regulator for this region is not interested and in fact has indicated it favours more use and understanding of automation. Nothing at all from these hallowed halls about the need for manual flight competency :mad: |
This thread can go on forever....
The FMS magenta track line makes npa's utterly piss-easy to fly manually, it really riles me that anyone can cock these up with a damn autopilot engaged too. As mentioned above, it is horses for courses, we fly automated airl;iners nowadays and they are designed to fly through the automatics. flight Managers look at FDA stats and draw obvious conclusions- more "events" occur when hand flying or with automation turned off. They have KPIs to lower "events" and logic tells them to stop people hand flying to lower the events. Counter logic say to make folk hand fly more- but would lawyers agree? This is the quandry the Managers face. Don't forget they might only fly one day a month themselves, with F/Os terrrified to be stuck in a flightdeck with them and perrforming accordingly..... Hmm. |
Originally Posted by FD
Ok, I'll bite the bait, with tongue in cheek and a twink in the eye.
In my book, the "generation of greyhair examiners and course developers" should take on the task (- and I'm sure the good ones do) of ensuring that the "legion of underachieveing brats" is made to understand basic flying, including how to plan and fly a descent without a computer. |
I suppose it's a case of 80/20, and this pervades a huge amount of modern education. Background information is pared-down to a minimum, and if the end goal - line first officers - is all that matters, then hard faith in the automatics makes absolute sense, if only from a management point of view. Of course, the random nature of the real world periodically cares little for stats, modelling, or theory, and this is where man still has a big role to play when something out of the ordinary happens.
I think automation is amazing, but I've never flown anything larger than a C150. I still marvel at the precision and grace of modern airliners. Even as passengers, we have become disconnected from the experience of flight; a recent trip on a 777 was more like a magic carpet than an aircraft. A quick look around the cabin during takeoff will show that most people won't even flinch at being recipients of over 100 years of knowledge and skill that can propel a 350 tonne object into the air, and 10000 miles away in a few hours, and repeat the trick endlessly. Familiarity is the root of indifference. And yet... The laws of physics are unchanged, and indifferent. The same information is being presented in the same form (more or less) to the pilot, and Airbus say their products fly just the same as anything else. Is there anything really new here? |
In my book, the "generation of greyhair examiners and course developers" should take on the task (- and I'm sure the good ones do) of ensuring that the "legion of underachieveing brats" is made to understand basic flying, including how to plan and fly a descent without a computer.
It would be a great pleasure to do so,.....but...SOP's preclude it, or management attitudes do. Further, if you tried, on the line, to instill some semblance of what is being discussed, it would take a very long time as the foundations have not been laid in the TQ training. That has been minimised and diluted as a cost saving measure. Students paying for themselves can not afford the 3 or 4 extra sim sessions which should be there for basic handling skills. Companies paying for the training don't want to do more than required. They seem content to have robotic trained monkeys up front. Pilots who can not be trusted to fly visual approaches without significant LNAV VNAV backup. I always thought the most useful tools in a visual approach were Mk.1 eyeball and a consumate understanding of pitch & power. Someone said the physics of a jet and a Cessna are similar. Correct. Give the beast the correct amount of energy and it will do what you want; give it more or less and it will do something surprising. That means you're not in control, which being the PF is rather disappointing. George can do a wonderful job; it can also bite your rear-end. So to follow the suggestion of teaching raw data descents to a descending low drag visual circuit as the norm, which it was in the clock & dials day, would be a real thrill and frowned upon very heavily. It'd take a full summer season. I hear from FDM experts that in CAVOK most G/A's follow screwed up visuals. Amazing. Solution? discourage the troops from doing them as a time/fuel saving method because if they mess it up any saving has been reversed. Encourage robtic techniques. Trouble then is when command upgrade time comes, the TRE expects to see some initiative, strong situational awareness, ability to multi-task in non-normal scenarios. If the basic foundations are not there to let you relax and manage the a/c too much energy and capacity is used during the tasks and it all breaks down. I fly with F/O's who at 26 have 3000hrs and are expecting a command shot soon. How do % fail rates compare between companies? Long & short-haul. But also compare this to the era of 7-10 years in a company, 5000hours and the likely hood to have seen and learnt from some grey haired old farts during the various interesting scenarios that inevitably threw themselves in your face during your apprenticeship. Now, there seems an assumption that 4 years, 3000hrs, a couple of OK prof checks and it's time for 4 stripes. I find that some SFO's coming up for consideration, are still reluctant to make the first call when PF. I always throw the ball into their court, but they still ask what "I'd like to do." Your choice, mate; I'll tell you if I disagree. That attitude is not an option on a command course. I did hear 1 chief TC say he would like to teach better handling techniques, but there is no time. With companies having bases all over the world it is very difficult to keep tabs on standards. So, dum it down to what you know works; use AFDS as amuch as possible; write a detailed SOP book and hope everyone plays the game. I can understand that solution; it just very soul destroying. I learnt BOAC's quoted techniques on the line. It was the way everyone flew, and most were good at. They'd all come through he same mill. Shame times have changed. It will be interesting, but perhaps not possible, to hear what TC's in 10 years are saying. They will have come from this generation of teachings and be passing it on. I wonder what they will find on the command courses in the future. I wonder if the checking syllabus will have changed. In 15 years the CAA's will be staffed by people from todays teaching regieme. Will they change anything? |
Rat - a fine summary of where we are and where we are going.
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We are already there and it is far too late to turn the boat around. We have seen it coming for some time.
Those who decry automation need an answer and there will be none forthcoming. BOAC and I (and others) suffered the trials of selection; now, a credit card will do... |
the trials of selection; now, a credit card will do... |
Not long ago, on this forum, I took polite exception to an apparently professional pilot's joking remark that to go up, you pull the stick back and to go down you pushed it forward. What's so hard about that?
I don't think he had any idea what I was talking about when I suggested that the throttle/power lever was actually the up/down control. Several others jumped in to complain that I was talking nonsense. "Try telling that to somebody taking off," one snarked. |
stepwilk:
I don't think he had any idea what I was talking about when I suggested that the throttle/power lever was actually the up/down control. Several others jumped in to complain that I was talking nonsense. "Try telling that to somebody taking off," one snarked. |
Try staying on a glide slope with the yoke alone. That's an argument I'll be delighted to watch.
Certainly there was no argument in my day, and in the 1960s and '70s, that's how we were taught. Have the physics changed? |
Stepwilk in an airbus it is exactly that: to go up you pull the stick to go down you push, the thrust levers don't move and stay in the climb detent.
Flying for dummies. Offcourse in theory you are absolutely correct, it's excess thrust that enables an aircraft to climb or lack of thrust that makes it go down. Another weird fact about airbus, even with manual thrust you still need to pull the stick to climb and push to descent. Pitch/power coupling is "prevented" by autotrim. Leaving the stick in neutral but playing with thrust levers would just result in speed changes. This is why I find the airbus is a bitch to fly in turbulent gusty weather. The airbus is simply a point the nose at where you want to go aircraft. |
Here we go again! Stepwilk and Terpster, hang on to your hats!
It's not particularly physics, it's primarily a culture thing. John Farley said it 6 months ago in http://www.pprune.org/tech-log/41992...ml#post5791913. The discussion goes on from there. Hurt's Aerodynamics for Naval Aviators is quite clear on the theme:
Originally Posted by Hurt, AfNA, p27
Angle of attack is the primary control of airspeed in steady flight
The discussion was not long, and was inconclusive, because to resolve it seems to require numbers which nobody was providing. But the issues are by no means simple. PBL |
stepwilk:
Try staying on a glide slope with the yoke alone. That's an argument I'll be delighted to watch. |
make your mind up
So are you lot saying that an apprenticeship is now whats required to enhance safety?
Problem being airlines wont hire from airtaxi / corporate / jet charter as it doesn't fit their business model, they need to start doing to release that position for somebody else to train up. You'll be a way up the corporate type rating ladder before you get to see an aircraft with VNAV and autothrottle - taken me 10 years! It sort of forces the issue regarding lack of skill as there is nothing to rely on. I've always said that airline SOP's are not there just for safety's sake but also to account for the lowest common denominator in terms of ability - it appears they have stealthily changed emphasis from the former to the latter. The great shame is that it will never change going forward.... you grandfathers of the green are wasting your breath, Airlines simply need more children of the magenta lest somebody doesn't get to AGP for a tenner. What is interesting is that all the loco models are based on the Southwest model who don't entertain cadets or low time captains - we've nobody to blame but ourselves. Get CTC to approach some Chieftain and Kingair operators - would the newbies cope....I'm not sure they would, they need the rigid SOP's to make it to the line. |
A simple plea! This thread is about 'Automation' - not the age old stick/throttle discussion.
Before we are all dragged screaming off into pedants' corner, and personal insults start hurtling around yet again, can those arguing about this please **** off somewhere else? :mad: How about 'Private flying', or 'Flying Instructors' or 'Professional Pilot Training'? Plenty of choice. |
BOAC: back on track indeed. The basic tests, LST & LPC, are ancient in todays world. We are allowed, encouraged, to use automatics for an NPA. Not to have 1 available would be a multi-failure on a modern jet. However, the LPC test manoeuvres are similar for many types. Do all smaller pax a/c have multi autopilots? 1 broken = manual approaches.
The only manual manoeuvre is the SE work. That worries me. It is negative training. In a multi-autopilot a/c, with an engine failure, why not fly the approach with the A/P. Managing the automatics in the non-normal scenario is what the real world needs. Are we trained for it, or could mis-managing the auto's be the final piece of cheese that lines up the holes? If we decide that is the way to go it has to come from the top = CAA's. The other solution, if things stay the same, is for companies to give more training/recurrency time in use of automatics in some very strange circumstances. Real training to a proficiency, not a fast pass at 1 secenario quickly followed by another and another, then a tick in the box that recurrency has been satisfied. The airline is responsible for ensuring the OVERALL proficiency of its PILOTS. If the way forward in testing is to use automatics the way we should in the real world during NNC's, then the opposite should be true and companies would give extra time to develop manual flying skills. Same reasoning as above. In both cases it will cost the airlines time/money so it won't happen. What about an LPC using automatics and an OPC using manual skills? I still believe the pax expect us to be a safe insurance and get them home safely when the sparks fly; or don't. Further, given that we seem to agree the future is towards having system operators and less pilots, I'd like to see a complete re-think of airline's personal charateristics for student pilots. They ask for people who will be very over-educated for the tasks involved and probably of different motivation for the future life styles that they will inherit. Causes the wingeing syndrome we are so familiar with. Wrong type of people in wrong places. During an interview for Air Heathrow I was told they did not recruit F/O's, but captains, and not even captains but future managers. Pilot was not in the vocabulary. OK a A380/B747 captain might be more of a cruise liner captain personna than a LoCo B738 captain. Indeed it does require a different personna. Do airlines recruit for that? Not in my opinion. Another major carrier told me they did not require more than 1 experienced pilot on board and that captains flew the a/c and station managers made all other decisions. With ACARS & SAT phones they could always ask for help. Again, a very different enviroment than the F50/EMB135 6 sector a day pilot. Different horses for courses and different training worlds. Some very automated, others verfy basic. The Highlands & Islands type flying needs a different animal to the A380 pilot. Is there any motivation to change the aviation world, anywhere? I find it sad when I read an airline does not recruit experienced F/O's or non-type rated DEC's. Could this the start of a trend towards cloning their own monkeys? Easier and cheaper, or is it in fact the modern version of all the major carriers (EU) who used to have their own training schools for raw recruits. get 'em young and mold into the way of our church. No bad habits. Brain washed in our mehtods. I still meet ex-major pilots who've spent their whole lives in one cosy nest and believe there is only one way to to do it, and their's is the best. How long before ATC start flying the a/c and we do really become system monitors? They like to do it now by command. It's worse than being married. Do this, do that and no back chat. Trouble is that sometimes they ask for something which is not appropriate, but I still see Topgun over there get sucked into it and start to wonder if it'll work out OK. There is a hesitation to say, " I, the responsible commander, would prefer to do something else, as from where I sit this is not going to work out comfortably." That's a whole new thread and I'll leave that for another time. |
In a multi-autopilot a/c, with an engine failure, why not fly the approach with the A/P. Unless the correct amount of corrective rudder is fed in to counter yaw, the control wheel then turns automatically to hold the ILS localiser. This causes inevitable flight spoiler operation and thus unwanted drag. The whole event can then turn into what is beautifully described as a horses's arse. And that is because of crossed controls. Even on a single engine autopilot flown circuit, it is not uncommon to see the aircraft turning (say) on to base leg with the PF using the heading select function of the autopilot. Meaning the control wheel turns but if yaw is allowed to occur due to incorrect rudder input it becomes quite interesting to see the control wheel turning in an opposing direction. Aircraft turning left under yaw and wheel turning right trying to correct the yaw due incorrect rudder pressure. On the other hand a single engine circuit or single engine ILS flown manually throughout, presents no problem to a current and competent pilot because there is no mixing of manual input and autopilot input. Personal opinion only, of course |
With regards to the "stay on glideslope without throttles" remark.
We are talking about the last 500 feet I presume? At my base the aim is full idle approaches until approaching the landing gate. |
The accident report of the December 1, 1974, crash of a NWA 727 in New York should be required reading for all of today's active crewmembers. They forgot to turn on the pitot heaters and when "the stuff hit the fan" they got fixated on the bad information to the exclusion of attitude instrument flying. The accident report can be downloaded here: http://www.fss.aero/accident-reports...4-12-01-US.pdf I had an eerie feeling when I looked up the crash site on GOOGLE Earth, there is still a large clear area... http://img842.imageshack.us/img842/1...1crashsite.jpg Makes you more humble, there is absolutely no substitute for the basics. |
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