Apologies, I was thinking of RM1826 and 1937. Sorry – reading it back I got the wrong end of the stick thinking it was Hurricane not Hawcon, but it is still just as relevant really. I am still working on something on wing root and interference drag, and the more material and evidence I can bring to it the better!

Oh, I’m surè Green will be along to tell us the OECD are state-educated lefties and we can safely ignore their Trotskyist propaganda.

You might be confused, but I am reporting fact. Yes. We are stuffed. You seem to believe that only ‘remain’ voters will suffer, in your twisted world, and that makes you happy. Very strange.

I have kids, their prospects are reduced and I am not happy about it. Which part of that is juvenile?

Which part of that is left wing, comrade?

Which part of the above is hyperbole?

Emigration – no, I would rather the unpleasant souls who seem to be delighting in the damage caused left us and set up an independent nation. I don’t recognise that attitude as British, never mind patriotic.

All political careers end in failure.

Interesting that the media like to talk of the Brexit ‘divorce’ negotiations.

OK, Brexiters, imagine this. There’s a divorce, and as one half of it you are bargaining with the other half and trying to convince an arbitrator – the divorce court – of your case for your share. Now imagine that the arbitrator is also the solicitor for your ex-partner.

That is the position we have put ourselves into.

John, I suspect from your outlook that, frankly, you don’t expect to live as long with the consequences as most of us. There aren’t many under 40 thinking ‘Hey, the rest of my life will be ****, the rest of my family’s lives will be ****, but at least our legislators don’t have to co-operate in some areas with anyone not British!’ Rule sodding Britannia. Well done, leavers. Well done all of you who voted without thought for the consequences. You have made it worse for your children, and mine, for some notion of ‘freedom’ from an oppression that never existed.

One glimmer of light. When we don’t feel any less shat upon after than before, maybe the poor bloody ‘man in the street’ will look elsewhere for someone to blame. Maybe this time it won’t be foreigners.
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Yes.

The efficiency of a wing was and is what mattered – that is the lift/drag ratio. There has been a lot of criticism with hindsight of designers thick wing choices, eg. the P-38, which completely misses the point. It is not just about thickness creating more drag, as if you are also creating more lift then you are efficiently using the energy of the aeroplane, which is the point of a good wing design.

The problem, as addressed by the R&M Schneiderman mentioned, was flow breakdown which generally occurred more readily on thick sections (though not necessarily) and which, when it did occur, usually happened at the root due to the influence of the fuselage over a thicker wing. Then you got drag but no commensurate lift.

Later, local acceleration to the speed of sound caused shockwaves on the upper surface of thicker wings, and so thinner was indeed better (less local acceleration over maximum camber point). But in subsonic terms, there was nothing so awful about a 19% wing.

Hurri RV7 – as was normal, t/c ratio went down from root to tip. There was a tiny change in the aerofoil, but don’t be misled by the tip sections, which were just ’rounded’ with smooth curves. The true aerofoil ends at the outboard rib. The other thing to be aware of is that the centre section gives a false impression of camber, t/c and angle of attack. You need to look at that seperately from the wing proper – ie outboard of the undercarriage. I built a Hurricane wing, and got horribly caught up in the un-necessarily complex geometries.

The only thing benighting this country is blind adherence to a failed doctrine.

New car sales are down. The only sector of that market on the up is the SUV bought on tick, because some people feel the need to keep up appearances when in fact they are in the same downward spiral as most of us and can’t afford to actually buy a new car.

What country do you live in where ‘consumer confidence’ abounds and everyone is getting rich? If you try and book a Christmas lunch as late as October, John, you will have to try quite a few venues before getting one. That was true twenty years ago and is no less true now. It is a very poor indicator of economic health for reasons to do with supply and demand for eating out generally which I am sure you can work out for yourself – you would struggle as much in Malawi as Malibu.

As for foreign holidays, did you make the mistake of telling them who you were before asking? Or, come to that, are you aware that people from other countries, including ones doing better than us right now, go on holiday too?

Balls. How do I ‘know’ that? My world is wider than yours, sir. I may even have spoken to – and (I know you will find this abhorrent) even listened to foreigners.

Have you noticed how much better off the average (left-of-centre) Scandinavian is? No? Probably not, because that won’t be mentioned in the Telegraph. Yes, the average. No, you don’t get stupidly rich people talking about how their wealth benefits everyone there. Kind of my point.

Have you spoken to any Swedes lately? About how they are f-ing up their economy by introducing inequalities in a deliberate bid from above to embrace neo-liberalism? No. But I bet you ‘know’ all about Venezuela, because the Telegraph tells you it was a socialist economic disaster. Only it wasn’t, because Hugo Chavez was a Bolivarian, not a socialist. He was a populist, and when it suited he aligned himself with Marx – without instituting a single Marxist policy. No, John, ‘free money’ is not a socialist policy and never has been.

Does the D. Tel. even acknowledge the existence of Ecuador? Bolivia? While Vietnam is on the up you won’t hear tell of that, either. How about how Cuba has managed to stay in the top quartile for the region in pretty much every indicator by remaining properly socialist since the communists pulled out in 61? Despite every effort of the most powerful capitalist nation in the word to sabotage the economy of the place?

Or how about India? Yes, India. As well as one of the most successful growth economies of the past decade (OECD, not me), it has a socialist constitution. Did you know that? No? Well ****** me, your public school education lets you down again.

I am not claiming socialism is any more a panacea than any other ‘ism’. I am saying your simplistic statement about capitalism ‘since the dawn of time’ is utter balls.

John, our chief ass-kicker is.. Theresa May. What means and capability would that be, then?

Technically it shouldn’t be – it should be Boris Johnson. Oh dear. The lack of talent for the tasks at hand is quite awe-inspiring.

You do realise that the rest of the world finds it funny, don’t you? Like your granny in a Lara Croft catsuit, trying to high-kick, ripping her surgical corsetry and falling over.