billswagger
Airman 1st Class
- 256
- Mar 12, 2009
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If they could have got it to stay in one piece or not melt itself into a solid lump of aluminium the Rolls Royce Crecy .
Apparently it sounded like all the damned souls in hell screaming at once the pilot would have needed 2 pairs of earplugs to stop his brain melting.
Lighthunmust,
You can check out my proposal - nothing fancy in it
Pratt Whitney R-4360 Wasp Major Cutaway. I know its air cooled but, the powered cutaway is worth a peek
Cheers
John
If they could have got it to stay in one piece or not melt itself into a solid lump of aluminium theView: https://www.youtube.com/watch?v=fZMPDCNyQxE
Cheers
John
A bit like these?
The British Racing Motors V16 was a supercharged 1.5 litre (90.8 cu in) V-16 cylinder racing engine built by British Racing Motors (BRM) for competing in Formula One motor racing. Designed in 1947 and raced until 1954-55, it produced 600 bhp (450 kW) at 12,000 rpm, although test figures from Rolls-Royce suggested that the engine would be able to be run at up to 14,000rpm.
View: https://www.youtube.com/watch?v=fZMPDCNyQxE
Cheers
John
This is a proper car engineView: https://www.youtube.com/watch?v=F2vNevKRAvk saw it spitting fire at the Liverpool festival of power the pulse of the engine made your chest vibrate
View: https://www.youtube.com/watch?v=6O1fSfANxbM
View: https://www.youtube.com/watch?v=Ub0hwAPiidM
View: https://www.youtube.com/watch?v=JXS3GBRX1Ys
I love these...
The Germans have made some monster car with an old Maybach in it I think
Brutus
View: https://www.youtube.com/watch?v=zUsaYRyuGNY
V8 motorbikes etc I think that are all brilliant.
Sorry, got a bit carried away...
Cheers
John
Aren't sleeve valves a dead-end for the following reasons:
"They subsequently fell from use due to advances in poppet-valve technology including sodium cooling and to their tendency to burn a lot of lubricating oil or to seize due to lack of it." -wikipedia
Complexity in manufacture, need for precision fit, and the effects of battle damage?
Well, it is wikipedia
The Sleeve valve/poppet valve argument started back before 1930. Sodium cooled valves date from before 1930. ALL high powered aircraft engines (and quite a few not so high powered ones) used sodium cooled exhaust valves and few engines even used sodium cooled intake valves. Much better cylinder head finning and construction helped the valve and valve seat cooling.
The Sleeve valve/poppet valve argument started when 70 octane fuel was hot stuff and 6 to compression and even 1lb of boost was state of the art
Every time either side made a good stride forward somebody moved the goal post.
Sleeve valves were expensive to manufacture and by the time they really got them sorted out (post WW II) jets were taking over. Some of the post war Hercules and Centaurus engines posted some truly incredible times between overhauls.
Well, it is wikipedia
The Sleeve valve/poppet valve argument started back before 1930. Sodium cooled valves date from before 1930. ALL high powered aircraft engines (and quite a few not so high powered ones) used sodium cooled exhaust valves and few engines even used sodium cooled intake valves. Much better cylinder head finning and construction helped the valve and valve seat cooling.
The Sleeve valve/poppet valve argument started when 70 octane fuel was hot stuff and 6 to compression and even 1lb of boost was state of the art
Every time either side made a good stride forward somebody moved the goal post.
Sleeve valves were expensive to manufacture and by the time they really got them sorted out (post WW II) jets were taking over. Some of the post war Hercules and Centaurus engines posted some truly incredible times between overhauls.
I'd like to propose a 12 cyl boxer, horizontal layout, with 30-35L capacity, a supercharger set as good as it gets for the era, with a provision for an engine-mounted cannon (laying above the crankshaft), with annular radiator. Cylinders/pistons dimensions akin to scaled-up Sabre parts (bore > stroke), for a good revvability. A twin-stroke would've been nice.