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Will somebody just tell me what a TWR is. I suspect we may call it, whatever it is, something different over here.
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After googling, TRW is the american way of saying TS on a METAR/TAF.
...so yea, I know what a Thunderstorm is. |
It's TRW, not TWR. TWR might be an abreviation for Tower.
A TRW is a weather-related acronym that any pilot who has ever flown anywhere where it rains knows what it is. Or, he'd better. It's a.....THUNDERSTORM W/ RAIN SHOWERS Sometimes they're just shown as 'T'. And if you don't respect them as a few have not, you will cause a fatal accident. Although, I hardly call it an accident if someone deliberately flies into one. Or, even NEAR one. But.....we digress. |
Learn as long as you live, live as long as you learn
Can't resist to ask what a TRW is?
Sorry for not knowing. But then I have only flown globally for 22 years on F27 to A340-500 so I am just a beginner with my 11000 hours I guess:} AutoAbort Too late again:confused: |
And me with my 20000hrs!
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If you don't know what a TRW is, then I suspect you don't fly airplanes, or if you do, you don't check the weather. Oh, so i saw the posts above, TS for thunderstorm, RA for rain, SH for showers and it all can be combined. |
A TRW is a weather-related acronym that any pilot who has ever flown anywhere where it rains knows what it is. Or, he'd better. |
And by the way...I love automation, and still they consider me a decent stick and rudder pilot as well - very strange indeed;)
AA |
OK.....regarding TRWs.
METARS have changed the way weather is displayed. And I see it's different every where you go. That's just great for a 'global' operation! One more example where "they" have tried to make something better and have only made it worse. Of course, that's IMHO. "They" really don't want you to know what the weather is. You might add more fuel or decide not to go. Again.....we digress. Keep your EPRs up.....or whatever they call those things today! Edit for horrible spelling! |
Olden days
AutoAbort, it used to be that to be known as a "good stick" was the highest compliment to gain. If your rep was somewhat less, "stick" was a word not included in banter about your skill. (see below for exception).
A "Decent Stick" meant you were RHS, and might have potential. It used to be bad form to talk about your skill or reputation, I blame Tom Cruise and Val Kilmer. rgds. AF |
DC-ATE,
Despite using the prefix "with all due respect", I have to admit I was a little offended by your recent reply to me, especially the part about the TRW. However, I now feel in quite good company as you seem to have insulted quite a number of highly experienced aviators. For your information, I do fly real aircraft (733s and 735s) for a UK LOCO and am no stranger to flight sim either ( I use it to brush up on those esential manual flying skills, though I've never managed to convince my wife or daughters that I'm not just "playing"). |
CHfour
I am sorry I offended you. It is/was not my intention of offending anyone. I just felt that everyone would know about TRWs. But, as I said in another reply, even the weather presentation has changed.....for the worse as far as I'm concerned. So.....good luck to you and yours. |
I am sorry I offended you. It is/was not my intention of offending anyone. I just felt that everyone would know about TRWs. But, as I said in another reply, even the weather presentation has changed.....for the worse as far as I'm concerned. So.....good luck to you and yours. Good luck to you also and keep up the postings! |
The 'fors' and 'agins' are nicely polarised and t'was ever thus but ... am I the only one concerned about a contribution that states that (to paraphrase) "once the A/P is engaged I take my hands off the thrust levers"?
To quote an excellent training video, " remember the Airbus" - Sticky thrust lever, auto throttle reduces thrust for level-off, one comes back, the other stays put, aircraft rolls inverted, 300 plus dead, WITH HANDS ON THE LEVERS THE PF WOULD HAVE KNOWN WHAT WAS GOING ON!!! (yes, I KNOW that I was shouting - it worries me that much!!:ugh: |
The PF should know what's going on anyway - as I said previously, you can see what the thrust is doing from the big gauges on the ECAM/EICAS/whatever, without the need to have a big lever moving backwards and forwards. There are people here who seem to think the word "automation" implies "enjoy the view while the aircraft does its thing".
If the PF is doing his/her job properly, they should be monitoring the level-off, part of which means making sure the A/T is doing its job correctly. If it's not, disconnect it. If you have an engine failure at altitude in the cruise, the aircraft isn't suddenly going to flip on its back without you having a chance to even blink. The same applies to the level off. |
I called for Climb Thrust in a B767-300 years ago out of Hong Kong at night at MAUW and exactly that
Sticky thrust lever, auto throttle reduces thrust for level-off, one comes back, the other stays put It got my attention, I quickly checked the screens and pushed the errant thrust lever back where it should have been and all was well. Back in those days I didn't keep my hand on the thrust levers but quess what, now I do, every time they are moving. It also became company policy some years later. As an aside, one reason I like having moving thrust levers is that it makes it a little easier to monitor the performance of both the autopilot and the guy sitting next to you. Regards, BH. |
On this subject, there's a further point I'd make - this is a genuine question, I don't know the answer...
Talking about thrust not coming back from climb power in the level off, for example; in A/T systems with moving thrust levers, doesn't the fact that the thrust lever needs to move potentially cause a problem in that if the thrust lever is physically stuck (jammed mechanism, FOD in the lever slots, etc), the thrust can't retard even if the A/T is commanding it? Or does the A/T system allow for the lever position to be over-ridden if it detects such a fault? On a system with non-moving thrust levers, despite the fact that other parts of the system could still theoretically cause an error, the potential for the stuck thrust lever problem is eliminated. |
Airfoilmod
I try to rephrase. Since my first language is not English or American, what I tried to convey was that probably I am considered OK in managing and handling the aircraft and its systems, even if the autothrottles fail:) and with a little bit of luck even land the thing. Maybe I've seen Top Gun too many times. Best Regards AutoAbort |
FOD in the lever slots, etc), the thrust can't retard even if the A/T is commanding it? Or does the A/T system allow for the lever position to be over-ridden if it detects such a fault?
If the thrust lever is stuck, Happens sometimes on the 146/AVRO. (Simply freezes if there is moisture in the cables) It will remain stuck and A/T not be able to control, and unless it unfreezes as you descend into warmer tempertures you may have to shut down the engine. (At least there are 3 left) AA |
bjkeates
On all the autothrottle equipped aircraft I have flown, manually positioning the thrust levers will always override the autothrottle. So a jammed thrust lever would be a real problem. Regards, BH. |
Thanks for your replies, guys. Best regards.
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oh Exteme P,
Nice shameless copy and paste of Bulfer and Gifford page 119 I believe ! Perhaps you could mention their name next time you use it. The one main advantage of moving autothrottle levers is that it allows you to instintly see what the automatics are asking or not asking the aircraft to do (when holding them). Much better feel than a command thrust presentation. Particularly good in determining whether its going to handle the next speed variation or windshear on approach that you know is coming but it doesnt. The need to know philosophy difference between Airbus and Boeing is surprising. I still cannot believe Airbus get away with not letting the Pilot know when an autopilot degradation occurs ie no aileron control but no message in the Russian crash. |
Bj,
With the A/T engaged its the computers that move the thrust levers and not the other way around.That....I hope should answer your query. IF for some reason the thrust lever is forced into an uncommanded position(as in maybe held into a position physically),the levers sense the 'suggestion',inform the computers and if nothing changes for a given period of time,they go into a "soft manual" mode or 'Thr hold' position.Wherein all protections are still available,but the levers would stay in the last commanded manual position. Hope this helps.... |
Flaperon, yes that answers the question. Thanks very much.
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DC-ATE
You have my entire sympathy with your arguments against the generation of adepts of auto-thrust and other forms of "push-button magic" aircraft systems. And like you, I recently did hang my hat and uniform to log LH "Rocking Chair" time from my balcony on a lovely beach.
xxx Funny is, when you and I started flying with airlines, we had to have very similar disagreements with our, then captains, who painfully had transitioned from their DC-6/7 or L-1049 to our B-707 and 727s. (I was PanAm). With a smile, I recall some captains who held their hands grabbed on the thrust levers (they called "throttles") through the entire takeoff roll and initial climb. Removing hands from thrust, at V1...? Anatheme...! They would even call the climb thrust reduction "METO POWER". So, what do we look like to today's intellectuals of automation in the cockpits... Can they really "fly" a plane...? xxx My last airplane type was the old 747 Classic... 1989-2008, which had auto-land and auto-thrust capability. As to using these, was rather unusual, except if engineering-maintenance wanted us to check the operational status of these toys. I rarely used "German" automation technology ("OTTO" approaches), as we, in South America much prefer "MANUEL" practice, to just verify that we still deserve our pilot proficiency status and currency... Unfortunately, I firmly believe that a few recent accidents would have been avoided, would the crew have elected to fly their machines by hand. xxx I would love to subject today's fATPL-clad kids going through a SIM P/C, say in a DC8-63 (I flew these as well) in a "quick-and-dirty" 20 minutes check, with a mere... (1) First takeoff, engine failure nš 4 at V1 - to (2) 3-engine hand-flown ILS down to 100' DH - to (3) Missed approach with ENG FIRE on nš 3 - to (4) 2-engine NDB, 10 kts XWIND with "lenient" visual conditions at 500' above TDZE. xxx I would tell him - "parking brake ON - you passed..." Is it not the way we could do...? No need to verify your qualifications in selecting the OTTO-pilot. Certain, guys with Rosenbalm or Kalitta were able to do it, with colors. xxx Best regards - :ok: Happy contrails |
The last 10 on a B733 with everything and I feel my management of flight is far superior than the good old days of "stick and rudder". I make better decisions and use less fuel with help from the automatics. Understanding what the aircraft is capable of and how to best manage the autoflight to achieve that is the key. In the simulator we frequently observe experienced captains and cadet first officers make an absolutely embarrassing hash of a straight forward IMC raw data hand flown ILS. Few are able to touch down with no drift on a crosswind landing. But watch them "monitor" the automatics on a Cat 3 and they are in their element. It is the wonderful reliability of automatics that has made airline flying safer over the years - not the skill of the crews per se. CFIT has been overtaken by Loss of Control as the major cause of accidents in the past few years and this is entirely because manipulative skills have been eroded by policies that ensure automatics are to be engaged at the earliest opportunity after lift off and left engaged until that last few seconds before touch down. Even simulator sessions are primarily an automatics exercise with very little time allotted to ensure excellent manipulative skills. And so the vicious circle is maintained. If you believe that an airline pilot should be equally skilful at automatic flight and at manual flight, then think again. Because very rarely do we see this in the simulator and certainly hardly ever in the air. |
BelArgUSA - Tee Emm -
Thank you both for your input. You are both absolutely correct in your thoughts. Unfortunately, like I've said in other threads, I feel we're just banging our heards up against a stone wall with the "new" generation of "automated" pilot. That is not to say they're ALL like that, but you know what I mean. "Automation" and "Technology" are gonna do us in, I fear. BelArgUSA, enjoy your retirement; I know I am. That is 'till the $$ runs out! |
I am looking forward to the day when I can look back at my career and smugly state how I am much better than any of the 'new generation'. It's going to be great!
Wasn't this a thread about Autothrottles? I forget... (Must be getting old already!) |
You are both absolutely correct in your thoughts. Unfortunately, like I've said in other threads, I feel we're just banging our heards up against a stone wall with the "new" generation of "automated" pilot. |
I personally cannot believe the words some pilots here are writing. Since when holding 180kts and joining an ILS a problem that you need auto throttles or autopilots for???
Jesus what have we come to? All this lawyer mumbo jumbo... "I look to see if its safe to me to take my hand off my and put it somewhere else.... " for real? Seriously gentlemen, you have elected to be pilots, mentally return to your 172 days and put your hands on the throttle and join that needle and slope. It's not that hard even if you need to say "Gear down" .... "Flaps X...", not a big deal! Maybe even try a 250kts to the marker some time, it will do wonders to how much you know about your airplane. Maybe even try to see if you know what kind of a pitch attiude it takes to level your airplane at 200kts, at 180 and first flap application, how about at 250... do you know what those attitude targets are? |
Please.....I am NOT looking down on anyone! Nor am I trying to "prove" that I, or "my generation" is/was any better. I am merely TRYING to point out some possible flaws in the system. Flaws that have been documented on occasion. Flaws that no one seems willing to accept. Read that report on the link I posted.
I hope ALL you active pilots can look back at your career someday with satisfaction of a "job well done". Was I lucky, proficient, average, good, or what: who knows. All I know is I "survived" 30 years of flying these things without ever having scratched anything. Keep your EPRs, RPMs, BMEPs, or whatever you use...UP! |
downwindabeam, I don't think anyone is saying that it's a "problem", Instead, that A/T can free up mental capacity to do other jobs, especially is you are fatigued, and this increases overall operational safety. At the end of the day, a safe operation is what you are employed to perform.
I am not condoning loss of handling skill, I believe that it is prudent to practice handling at every opportunity you get, as long as it is safe to do so. In cases where you are tired on a 4th sector, and other things are going on (ie, cabin not ready, etc.), A/T is a welcome feature to help you perform your operation. Of course, if for some reason the A/T was inop, you should still be able to deal with it all without issue. Safety first, not ego, or "tradition". I drive an automatic car because for me, it's function is to get me from A to B in comfort and least hassle possible. Some people prefer manual cars because they enjoy the more "hands on" experience. I am not employed to enjoy my job (however I do thoroughly), I am paid to get paying passengers from A to B safely and efficiently, any feature that enhances my ability to do that, is more than welcome. Of course, none of that is any excuse to let your manual competence degrade. On a separate note, I do plan to start some aerobatics lessons shortly, as I really did enjoy the "real hands on flying" experience. |
Actually I did my intial training on the DC8 when I joined SAS. Unfortunately only the simulator. Would have loved to fly the real airplane because it was a joy to fly. BUT I think most of us agree that there is no way back to the technology of those days, and if you are suggesting that todays aircraft systems have evolved in a not so optimum way and are leaving the pilot out of the loop maybe it is becoming a nostalgic trip? Evolution is going on as we speek. A380 shows vertical profile on ND, cameras for external view, more composite materials, Entertainment systems omboard are lightyears from before, Datalink is used more and more for communication. Others are experimenting with synthetic vision, airborne radar to detect clear air turbulence. I have heard rumours about Auto takeoff! Free flight will come and by then the "pilot" will probably have to accept a computer generated ATC scenario displayed on the aircraft screens and we just watch and monitor, but i am sure he can still do a manual ILS if necessary, without any problem. Maybe it is not as "fun" as earlier days but the public, economy,safety and the society will demand such as system to make it work at all when we are 12 bilion people who all want to travel to the other side of the world to get some variation to their normal summer vacation week on the Canary Islands. Am I worried about the future? He## NO I am eagerly looking forward to it and will enjoy every step of progress and try to adapt to it.
On the other hand I love to visit Aviaion museums as well.:) rgrds to all AutoAbort |
I'm sorry you didn't get a chance to fly the 'real' DC-8. While sims are good, actual aircraft fly better.
I fully realize there is 'no turning back' in technology. I merely tried to point out where mistakes CAN take place because of this new technolgy. If all you have is 'straight' flight controls and throttle(s), and something goes wrong, it's faily obvious what it is and you deal with it. There just seem to be too many variables with the newer system to get a grasp of what is actually happening and then being able to deal with it. Nuff said..... |
Well, Pprune Friends -
xxx Nearly 20 years ago, an acquaintance in California invited me for a ride in his DC-3, and told me to sit in the RH seat. I flew it straight and level for about 5-10 minutes or so, but would not have had a clue as to what to do if he became incapacitated...! Bunch of handles and gages I did not know...! xxx Last year, I rode one of our A-340 to Barcelona, and was in the cockpit for takeoff and landing, and spent an hour in cruise "completely lost" as to all the toys to be found. Again, would the pilots have been incapacitated, I would have impressed myself to find the "press to talk" switch (if any), and with my luck, disconnected the autoflight systems, with no hope to recover. xxx What is this...? Generation gap, definitely. Add to this a severe case of alzheimer, and advanced senility. I guess those of you kids who play with FS Microsoft simulators at home would know more about how to fly a A-340 than me. Oh - stop it... I could read the altimeter... xxx Leave me in my passenger seat, in the cabin, enjoying wines and lobster, and the smile of the few flight attendants who did not forget my name. Oh, do not worry, I keep my Super Cub VFR type rating current. I could even finance line training in it, and its FMC is not beyond my IQ level. Will ask if an auto-throttle is an option on L-21s, I might install one, you guys made me jealous. xxx All the best to the new generation. :D Happy contrails |
DC-ATE
Going back to your original post! The crash mentioned was a 737 with fully moving thrust levers, why bring up the airbus type operation? |
If you're referring to my initial post, I don't see where I mentioned Airbus. I know the Turkish one was a 737-800.
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DC-ATE:
I believe you are dead right to ponder the steadily increasing gap between those pilots that are locked into the wonders of automatics and those enthusiastic airmen who remain convinced of the vital flight safety importance of manipulative skills. Someone in an earlier post said that it's fine to keep your hand in at hand flying but only when it is safe to do so. Perhaps the writer really meant that his own flying skills were so eroded that it was too risky for him to "practice" his hand flying lest he makes a complete idiot of himself or scare the first officer who undoubtedly would have been brainwashed into thinking hand flying was a potential Mayday situation. You will never beat current automation for sheer accuracy. But in my experience in airline flying there are plenty of opportunities to keep up your hand flying raw data skills so necessary for the time you will really need them. Commonsense should dictate when the time is not appropriate to do this. If you get time, read the accident report on the Adam Air (indonesia) Boeing 737 that crashed after breaking apart during an attempted recovery in IMC from a steep rolling dive. In a nutshell, the crew were apparently so engrossed in trouble-shooting an faulty IRS that they failed to notice the autopilot had disconnected as a consequence of their trouble shooting. Worse still, the crew failed to notice or failed to act when the 737 slowly banked into a spiral dive. With a modicum of basic piloting skills the captain could have easily righted the aircraft well before the situation got deadly serious. According to the accident report neither pilot had received simulator training on unusual attitude recovery technique. In a similar accident in the Middle East, the crew became disorientated during a night departure in a 737 resulting in the aircraft crashing into the sea from a rolling diving extreme attitude. It seems from the transcript from the final moments of the CVR the captain was continually screaming for the automatic pilot to be re-connected. That tells you something about the insidious nature of blind reliance on automatics regardless of the impending situation. As a long since retired (age 60 rule had me by the balls, sad to say) military and airline pilot, and now a simulator instructor, I see the steady erosion of flying skills due to the full on concentration for automatics competency. The headlong haste to plug in the automatic pilot as soon as the aircraft is airborne is patently obvious. But is it so necessary right then? Some argue it is safer in order to give time for the captain to "manage." That is a personal viewpoint that I have a problem with. I have seen pilots in the simulator conducting practice circuits and landings for training purposes. The majority use the full automatics to fly a simple circuit. In my view that is a waste of simulator time. I have seen the same pilots design a MAP series of waypoints that would make Picasso proud of the design - and all for a bloody visual circuit. Then they lock themselves on to the flight director and never look outside and become flying robots as they fiddle with various modes downwind, base and final, then with a deep breath and the sign of the cross, they click off the automatic pilot and roller coast their way down through the remaining few hundred feet of glide slope. Sad, really. 'Nuff said. |
@ Tee Emm for posts #66 and #78........:ok::ok::ok:
From me.....:D:D:D. Well said.....!! |
Tee Emm -
Thank you for your post. You are so right, and you're right; it's so sad. I've never been happier to be away from something (even my 'ex') in my life! It seems many today are unwilling to except the fact that they might be called upon to exercise actual flying skills some day to save their airplane. I had to do exactly that on a training flight one night with a "Captain/Instructor" in the Left Seat. He did NOT know how to get out of the situation we were in, and I was transitioning into my first jet aircraft! I'm glad I was able to call upon basic flying skills to not have my family and friends read about it in an accident report. Unfortunately, as I've spreculated in the past; it's only a matter of time before drones will be carrying the people around the World anyway, so why bother teaching pilots anything? |
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