Inside a radial engine

Makes the hair on the back of my neck stand up. Goosebumps too! Fabulous piece of engineering and to think Clark or Hill climbed down into this car and drove it on the edge with all that fuel swirling about.....its unreal to think about. When men were men for sure!
I think the "sleeve valve" radials are the most amazing things, how they ever got that lot to work and stay working is beyond me. There is a very nice cut-away 18 cylinder engine at East Fortune museum in Scotland that you can wind over by hand and see exactly how it all works. I cannot imagine the type of brain that thought that engine up.