I’ve seen a little, and heard a little more, about 3D technology and it sounds staggering. I guess it makes casting an obsolete part more realistic.
I was talking to a mate recently that builds/rebuilds vintage racing car engines for a living and he said short-run pistons in the States are no problem. Conrods can be CNC machined from solid in no time. Camshafts shouldn’t be a problem.
I would still like to know about crankshafts however. A radial has a built-up crank so it shouldn’t be a problem from solid. What can you do about a V12 crank? Apart from using a gigantic billet and machining from solid, which I don’t believe would be acceptable, apart from the cost, as far as I can see there isn’t an alternative to a proper forging.
What’s used in the States when rebuilding a Merlin? Are original cranks still available?
I suspect this thread, until rescued by the last post, was in danger of being a little too far off-topic.
If it strays too far and gets shifted, we must carry it on. I’ll happily continue to discuss steam engines, with some knowledge but aided by loads of books. 🙂
My mate owns half of the only model shop in Chesterfield.
I haven’t spoken to him for a couple of months. Must be about time I rang him…
Having seen (half) a die for a Merlin crankshaft in the Sheffield Industrial Museum, I can’t imagine a way of replicating a similar forging to satisfy modern airworthiness requirements without actually forging one.
John, changing to a BoB related name didn’t stop them being Castles. 😀
Browsing through a steam magazine in the newsagents today and saw a nameplate, I think for a Southern “Schools”, that had never come up for auction before made £28,500. It would seem that nameplates were a fairly good investment. In the same snippet, a plate that somebody had paid BR two quid for went for 12 grand!
Mrs DHFan may well kill me if I suggest buying any more kits to add to the hundred plus I already have.
I think this will have to be bought while she’s not looking. 🙂
I wonder what messerschmidt means?
And is it related to the company that made those er quirly 3 wheelers?
Asking what Messerschmitt means is like asking what Jones means. It was Prof Wilhelm’s name.
However, calling on the few words of German I know, messer means knife. I assume therefore that one of Willi’s ancestors was a knife-smith.
My dad rented one of the first Thorn-EMI (I think) piano-key VHS recorders in about 1978 I guess. They were hugely expensive to buy and unreliable so renting was the best deal.
I remember going to to buy VHS tapes from a shop in Holloway Road that was reputed to be the cheapest place in the country. If you bought 10 they were £13 each!!!!
To put that in perspective, I can’t remember my exact salary but I think it was about 50 quid a week, gross.
I think you’ll find Bruce has had his beady eyes on it for some time. 🙂
It’s the only Drover in the Northern hemisphere. It’s been discussed on here before, and it’s not looking any better.
Edward Hulton was a very rich man when he bought the Sunderland. He was lot less rich when he sold it to Kermit. He tried to sell it for years and Kermit was the only taker. IIRC, he was already trying to sell it when it was damaged in the 1987 hurricane. I saw it moored at Hythe in 1989, sadly I never saw it in the air.
The only qote I’ve ever heard from the RAFM was it would take 10 years, all the restoration staff and the entire restoration budget to restore the Halifax.
Shows how much notice I took!
I haven’t been to Hendon for 3 or 4 years and then only briefly. I don’t remember seeing the Phantom. Is it a recent addition or did I miss it?
Good plan.
Personally I use a slight revision of it – I assume 95% of drivers are complete idiots and the other 5% are homicidal maniacs.
Works for me.