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"Pilotless airliners safer" - London Times article

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Old 9th Dec 2014, 10:50
  #341 (permalink)  
 
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CargoOne
ps. Some of the major automotive manufacturers expect to release fully autonomous cars to the market in 2020. You can say it is not the same speed. True. But then road environment is also much less structured and less predictable. Current prototypes driving cities and highways without major issues, it took around decade to get there.
It is easy to migitate problems on the road by just stopping the car at the next possible point, which is no more than a few meters away from present position. That makes reliability and redundancy issues easier to fullfill.

The military has solved that problems with their drones by carrying some decent amount of explosives and an automatic or radio operated fusing system.

Both methods (stopping or blowing up) are less suitable for commercial air traffic. But you and some others still think that expierience in autonomous cars and military drones are of significant relevance?
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Old 9th Dec 2014, 11:51
  #342 (permalink)  
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I guess you are not real ex F4 since you are taking stuff from the movies.
Reaper and pred and the like do not self destruct as a safety method.

Cars can stop but have far smaller safety tolerances than aircraft. They routinely pass within feet of each other for hours on end with no height separation. It is an equally or more difficult problem to solve. They have no deconfiction system beyond staying on the right hand side of the road. They have no warnings. The turning radius and slowing distances are variable with weather.
 
Old 9th Dec 2014, 13:09
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Originally Posted by CargoOne
Some of the major automotive manufacturers expect to release fully autonomous cars to the market in 2020.
And GM in the 50s was expecting to release self-driving cars in the 70s.

Hands-free cruise control that requires the driver to watch the road and shut it down when something unusual happens, and leaves all liability on the driver for using it, almost certainly. Driving on urban streets in a snow storm during rush hour, while I nap in the back seat? No way.

Current prototypes driving cities and highways without major issues, it took around decade to get there.
Only if you believe the hype, and don't look at what these cars are actually doing.
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Old 9th Dec 2014, 13:12
  #344 (permalink)  
 
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I suggest we Just sit Ridley on the jump seat going into funchal on a bad day
Like the Saturday 2 weeks ago and that will be enough to make him go quiet.
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Old 9th Dec 2014, 13:14
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Originally Posted by RetiredF4
It is easy to migitate problems on the road by just stopping the car at the next possible point, which is no more than a few meters away from present position.
Sure, if you don't mind other cars going into the back of you when you stop in the middle of the highway, or when you're trying to swerve across to the shoulder through a lane of cars doing 70mph.

'Just stop' is not a solution to programming problems in heavy traffic, it's an accident waiting to happen.
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Old 9th Dec 2014, 13:16
  #346 (permalink)  
 
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Canute
I guess you are not real ex F4 since you are taking stuff from the movies.
Reaper and pred and the like do not self destruct as a safety method.
Well, I have no influence what you guess about me or other people, and if you guess that all details about those drones is available in the public domain you may continue to do so.

@MG23
Cars stop on a daily basis in heavy traffic, even with drivers. And I didn't say they would be programmed to stop within the second on the driving lane. Get real, highways have emergency parking lanes and exits and streets have parking spaces close by. Nothing compareable to an autonomous aircraft flying anywhere except on a ten mile final.

But if you think that soft- and hardware are not able to park an future autonomous car in short time to prevent it from causing accidents, what do you then expect from an autonomous airliner?

Last edited by RetiredF4; 9th Dec 2014 at 13:26.
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Old 9th Dec 2014, 13:37
  #347 (permalink)  
 
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The elephant in the room here is surely that:

a) Any computer taking the place of a human pilot will have to be able to think, predict and plan as well as a human. This means that humans will need to be able to model the human brain in a computer.

b) Any such computer will be built and programmed by humans.

c) The 'computerphiles' are assuming that such a computer will be 100% reliable and never have a bad internal connection or a memory fault or a CPU conflict.

So they are talking about a system on aircraft which will also be made by humans and that will introduce another whole set of potential glitches and software errors. Not only that, but there will be no pilots on the aircraft to sort the problems out when they arise. Would you put your family on such an aircraft?

Computers are excellent at assisting humans. They can hold a course and a level while the pilots oversee the navigation. They can provide numerical data such as landing distance required. They can augment pilots' control inputs to avoid overstressing the aircraft or cause accelerations of more than 1g etc. etc. But they cannot conduct a flight.

Those arguing for computers to replace pilots are obviously not current commercial airline pilots themselves, and therefore do not appreciate the full potential complexity of conducting a flight.

They also, I suspect, have never actually programmed computers themselves, (as I have). If they had, they would realise how difficult it really is to make a computer register and react to any and all circumstances as a human can.

Yes, human pilots over the years have cocked up and crashed, and that is a terrible thing that nobody wants to see happen again. BUT Instead of arguing for computers to replace us, let's argue for better training and conditions for pilots. This is an area that has been declining in recent years owing to the competition of low cost airlines etc., and is the real area where changes need to be made.
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Old 9th Dec 2014, 14:08
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Amazingly visceral responses to an innocuous newspaper comment. Luddite tendencies much?
Uncrewed aircraft are certainly possible, but getting there will be slow, if only because they still need to share the air and terminal space with conventional designs. Passenger reactions will be nil imho, even now they only interact with the cabin staff, apart from some pro forma welcome allegedly from the pilot.
The driver for the shift to unscrewed would be economic, because crew is a sizeable chunk of operating costs. If McDonalds can justify replacing its budget burger flippers with robots, then the benefit of ditching highly paid crew that can operate only 80 hours/month has to be really compelling. The evolution would plausibly begin with drone rules for ATC, followed by an extension to unscrewed cargo carriers. Corporate and passenger flights would presumably be the last to switch, a process maybe accelerated by some ultra low cost 'Automatic Airlines' that offers a true self loading cargo experience.
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Old 9th Dec 2014, 14:14
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No, Etudiant, reasoned responses to an insulting and utterly inaccurate paper article based more on a bad banker's wishes than on science or reality.
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Old 9th Dec 2014, 14:25
  #350 (permalink)  
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because crew is a sizeable chunk of operating costs.

Oh Buddha....



1) Add up the highest hourly rates you can find, PIC + SIC

2) Divide by the number of seats in their plane

3) If that total number for crew services exceeds $2 an hour per seat, let us know....
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Old 9th Dec 2014, 14:50
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Airline operating costs are capital to buy the gear, fuel to run it, crew to operate it and maintenance to preserve it. Note this excludes indirect costs such as management, marketing, insurance, taxes and fees.
Capital is currently dirt cheap, fuel is less than it was, maintenance is getting reduced by a younger fleet with increasing equipment MTBO, so crew is the stand out variable. It may be small on a $ per seat mile basis, but in the aggregate afaik, it is 15-30% of direct operating costs. That makes crew costs a priority target.
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Old 9th Dec 2014, 15:02
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Originally Posted by RetiredF4
Cars stop on a daily basis in heavy traffic, even with drivers.
No, they don't. I don't remember the last time a car just stopped in the middle of the road in front of me, unless there was a queue of traffic ahead, or some other obstacle that we all had to stop for.

And I didn't say they would be programmed to stop within the second on the driving lane.
If the car doesn't know what to do, it has to stop before the 'I don't know what to do' becomes 'oops, I crashed'. It can't just keep driving because you just said it doesn't know how!

Get real, highways have emergency parking lanes and exits and streets have parking spaces close by. Nothing compareable to an autonomous aircraft flying anywhere except on a ten mile final.
And highways have lanes of traffic the car has to get through to the side of the road before it runs into the thing it doesn't know how to handle. It has to slow down, because otherwise it will crash, and then it has to get between those other cars that aren't slowing down.

A real autonomous car has to be able to handle all situations by itself, or it's an accident waiting to happen. It can't 'just stop' when it runs into something it's not programmed to handle.

But if you think that soft- and hardware are not able to park an future autonomous car in short time to prevent it from causing accidents, what do you then expect from an autonomous airliner?
When was the last time you saw an airliner swerve to a stop at the side of the sky?

Besides, the airliner would apparently be pilotless, so it has to handle every possible situation, since it has no pilot left to take over.
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Old 9th Dec 2014, 16:10
  #353 (permalink)  
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so crew is the stand out variable. It may be small on a $ per seat mile basis, but in the aggregate afaik, it is 15-30% of direct operating costs. That makes crew costs a priority target.
Please identify an airline where Flight Crew costs are close to 30% of direct operating costs?

If one exists they will be lucky to see the A350 in service never mind pilotless aircraft.
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Old 9th Dec 2014, 17:29
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@MG23

I do not know what you are getting at, I hope you read my other posts too.

I'm not advocating driverless cars or pilotless airplanes in any way. But I think the issue to stop an autonomous car in traffic is a lot more easier to handle than stopping an autonomous airliner inflight.

And while the timeline for a driverless car might be closer than we wish, the timeline for an autonomous aircraft is thankfully still decades away.
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Old 9th Dec 2014, 18:03
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The Elephant in Room

The point has been made on this thread before, but I think it bears underlining:

You *can* make hypothetical technical arguments until the cows come home (Let's face it, few on here have many relevant FACTS).
The point is most fare paying customers (me included) will simply not buy a ticket on a pilotless airliner.
Now - they may try and sneak it up on us by having a single "pilot" and a box of processors in the R/H seat. This might then be advanced... but I still think most consumers will have the same ultimate objection.
Many many many years away guys.

You can tell it's a slow "smoking hole" year as we are still kicking around this puff-piece...
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Old 9th Dec 2014, 19:17
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Autonomous commercial flight services have already commenced. DHL has launched a autonomous cargo delivery service to an Island in the North Sea.

It's a small drone, and has ground controllers liaising with ATC, but it's a start.

It's easy to see the incremental road map from here to bigger, faster and higher until autonomous flight becomes mainstream.
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Old 9th Dec 2014, 19:36
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You *can* make hypothetical technical arguments until the cows come home (Let's face it, few on here have many relevant FACTS).
The point is most fare paying customers (me included) will simply not buy a ticket on a pilotless airliner.


Yes, but, you will not give a toss about the rewards the pilots receive. You will only be interested in the cost of the ticket. The cost of operating the a/c has reduced due to oil prices; further costs e.g. ATC, landing fees etc. will not reduce, but the pax expect reduced ticket prices. So where is that reduction in cost going to come from? There aren't too many choices. Why is the travelling public so naive?
You go to a 'Fast food outlet" you can eat; you go to a 3* restaurant & you can eat. One is more enjoyable and better than the other. They are both licensed. You get on a 3* airline and you can travel in safety; you get on an airline who pays peanuts and you take your chance. One is more enjoyable than the other. Both are licensed.
QED.
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Old 10th Dec 2014, 00:33
  #358 (permalink)  
 
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More details please eppy.
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Old 10th Dec 2014, 03:10
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The cost of certifying pilotless airliners will outweigh the cost savings of taking out the pilots. Especially bearing in mind you will have to have higher qualified operators on the ground and one person trained to take over in flight if required, so the numbers will not reduce significantly. And bear in mind low cost airlines won't make money out of training new pilots.

It's not going to happen in my lifetime.
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Old 10th Dec 2014, 04:57
  #360 (permalink)  
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because crew is a sizeable chunk of operating costs
but no where near as high as the insurance costs will become if the pilots are taken out of the aircraft and now add that to the cost of the ground controllers who will need the dual qualification of ATC and airline pilot to properly understand both aspects of a pilotless flight. The perceived financial gain simply isn't there. And I'll say it one more time, the security issues will prevent such flights unless all terrorist risk is removed.
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