Hi Gregory,
No book throwing, no rant, just a point of view! (And I appreciate yours too) I deliberately didn't refer to 'C of A' etc, I was being much more general. The appropriate 'paperwork' is different in different countries, different for military and civil owned or operated aircraft and so on. The case of the Estonian registered, Swedish owned, fully certified but fatally unsafe Ryan NYP replica which crashed in England last year comes to mind. It was legal. It wasn't certified in the UK. If it had crashed on a bystander we would have had worse problems than we did. Another paperwork issue - there are OFMCo a/c which can't be certified (I understand) in the UK because their rebuild isn't fully enough documented for the UK CAA. But they fly, fully legally, in NZ! My points were just two.
1. An aircraft rebuilt to flying condition but does not fly may be regarded as 'airworthy' but if it doesn't fly, it's not a flyer - and we all know how quickly a/c become unairworthy when hangarbound. My (personal) view is that's an 'airworthy quality restoration'. But if you can't push it out, fire it up and fly it, WITH the appropriate paperwork tomorrow, it's not airworthy. Seems simple to me!
2. Paperwork. A challange to my definition by 'Guest'. I thought about it and gave my personal opinion. I agree in the case 'Guest' cited paperwork might seem like a pointles faff; but what if? Sure we should all take a judgement call - if I'd been there, I might have been as keen as the rest, but...
We need only look to Germany to see what effect one accident can have on the aviation scene (Ramstein - Frecce Trecolori). Other times in other accidents, the general press love to mention 'uncontrolled airport'

when they can, it gives an impression of irrisponsibility. Because flying old aeroplanes is (sadly) regarded by the majority of the public as foolhardy, we don't need anyone caught doing anything remotely irrisponsible, as it affects the rest of us. Or putting it another way, I don't mind what Joe does, but if Joe gets caught, and there's a crackdown generally on some aspect of aviation, then I mind very much!
I'm not a restorer. I'm a writer, so it's my opinion, and I'm just asking folks to think about the (possible) consequence of such actions. As they say, 'fly safe'.
Cheers!