Dr Damon:
the maoster:
Why? Same reason planes have pilots. They might be willing to let a robot kill one or two people but draw a line at them killing 300.
Come on maoster I am sure you know planes more or less fly themselves these days. There have also been many flights without pilots although not with passengers. Yet.
There’s a nice article here that tries to explain the gulf between perception and reality.
askthepilot.com/questionansw … ion-myths/
An autopilot can “fly” the aircraft on a pre programmed path. However, the aircraft most definitely cannot fly itself, deal with itself or manage its own flight. The auto pilot is actually pretty stupid. It knows so much but cannot deal with unknowns outside of pre determined logarithms. And it only ever follows a path through the flight guidance computers that a human has commanded.
The notion of aircraft flying themselves is actually a sound bite the press have grasped hold of. The aviation community know it’s too laborious to explain how wildly off the mark this is so they let it slide and let people think it. It’s like saying to the crew of apollo 13 “you didn’t fly that mission mate, it’s got a flight guidance computer”
Flying straight and level is relatively easy. Every Pilot first learns how to do this in toy sized light aircraft way back in initial training. Granted, airliners are vastly harder to hand fly than a Cessna however flying straight and level is pretty much at the bottom of the demand pool placed on a Pilots workload compared to other elements of hand flying, such as the landing. So it’s a waste to have a pilot sitting holding the yoke for ten hours when the vast array of other demands and tasks warrant full attention.
Automation has only assisted the releatively easy part of piloting. But the public believe hand flying is the hard part. I think this comes from the days of private flying on basic aircraft or the old piston aircraft like DC3s where all pilots had to worry about was pretty much where they were going and driving the thing and that was it and that was how people defined the difficulty of flying. Hand flying aircraft not only became harder with jet technology but also the advance of speed and the environment in which they operate. There’s a bit more going on in jet aircraft. But even still Pilots still routinely hand fly the most challenging phases in jet airliners. It’s more like this. Surgeons use computers to aid their surgery. They don’t still use just basic tools. Now they carry out far more complex procedures, aided by technology, but their manual skill set is as advanced if not more than before.
Take a flight from JFK -LHR in the winter off a snow contaminated runway. For starters there is quite a lot of calculating and descision making regarding performance and ha doing of the aircraft in such a hostile environment. There’s also a stack ton of regulations, procedures, decision making tools, and years of knowledge you need to apply to keep a flight safe and legal in a wildly variable environment that doesn’t lend itself well to singular digital decision making. And a lot of this comes down to judgement and experience. It still says at the back of our Boeing quick reaction handbook that the crew’s judgement, knowledge of systems and airmanship is vital in correct decision making.
To kind of see what Boeing are getting at take a look at the DC10 that went in at Sioux City. A call to McDonald Douglas who manufactured the aircraft yieldied pretty much a “mm, dunno on this one”:-
en.m.wikipedia.org/wiki/United_ … Flight_232
People often refer to aircraft landing themselves, so take an autoland. It’s actually one of the more intensive procedures we do. Contrary to opinion 99.9 percent of the time take off and landings are hand flown. In bad viz an autoland is used. But here’s the deal. The monitoring of it is intense due to a cascading amount of variables or failures that can happen very close to the ground and with some of these failures you cannot allow the aircraft to try and land. You have to be able to diagnose extremely quickly and mitigate using correct action. You actually have to be pretty wired up and on it to manage an autoland. Autoland cannot deal with anything other than a slight crosswind. It also is completely out of its depth with strong gusting winds nevermind windshear.
This is with things as they are at the moment. I don’t doubt in some future there will be a massive change in technology and propulsion, infrastructure, even the nature of how aircraft are launched such that unmanned airliners will be seen. But it will be a long time yet.