bdk wrote:
Well, I've gone for rides during airshow displays a few times (20+ years ago) with no ill affects. I was just dead weight. Don't see a problem with it if it is done responsibly. No more dangerous than any other formation flight with passengers, perhaps safer since the (waivered) airspace is more controlled during the show.
To whom? The difference within shows is you have a crowd. Beyond the risk to the crew, which you can debate - there is an additional risk to the crowd, not valid during non-show flying.
And there's another risk - that of the effect on show flying after an accident. If someone drops a display aircraft on the crowd or kills a 'member of the public' at a show, then there's going to be a clampdown, however minor the real risks. It's easy for us to forget that to the general public, aircraft are an unnatural (they fly! how? magic!) accident waiting to happen. The media aren't going to have a balanced debate afterwards, and the politicians would just act. This has nothing to do with the style or liberties of governance in any democracy, just a baseline scenario awaiting us.
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From what I've read there wasn't really any agressive maneuvering involved either. Furthermore, did the lack of a check flight really contribute to the accident? If the pilot became incapacitated due to health reasons or there was a control failure, the lack of a checkride really doesn't matter.
Pretty fallacious argument, bdk. Is a pilot who is properly checked out on an aircraft more competent and more likely to be able to deal with issues? Obviously yes, which is why the system's there.
Clearly all that stimulator time for airline pilots is wasted because the times they need to use those skills are so infrequent...

What a saving you are proposing for the biz!
Seriously though, the 'no passengers' rule is a good 'risk factor removal' rule. There are case for exceptions that can be made - as Chris has just pointed out. However they should stay
exceptions. The risk-management line in, IMHO in the right place.
Also, there's a world of difference between say, bdk, a qualified pilot, JDK, an aviation writer but no pilot and joe doe who knows nothing. Each would provide a different level of distraction/ support and ability to cope during a high performance flight, or escape from an incident. (I know I don't like and can't take much g. What about someone who wants to go but doesn't really understand what g is?)
The case where a passenger in an L-39 was killed through his own inappropriate (but understandable) reactions in the case of an accident resulted in a court case in the UK. Like the whole taking passengers question - which is a separate issue - one has to plan for
what will happen if it goes wrong,
how to maximise chance to avoid worse case outcomes - because sadly, it still does go wrong.
As Ryan touched on, as well as Chris, there's too many good reasons with headstones as to why most western democracies have this rule for show flying.
Regards,