Sleeve valve engines

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Just as a matter of curiosty, anyone here owned/driven car fitted with these type of engine? Care to share thoughts.

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Thanks for comments, I had read somewhere that these engines, and I am interested in the Knight sleeve valve, were rather smokey prone to using lots of engine oil. (can't be worse than my little 7 tho

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Thanks for link Cobalt.
Coincidence an early Daimler showed up at a local Wings and Wheels show. Mid twenties and had the original 5.5 lt sleeve valve engine. Speaking to the owner I gleaned no end of valuble info from him. One of the factors of ownership is that no spare parts are available for the engine, so its all down to the machine shop to have bits made, expensive. On starting it up it made a R.R. engine of same period seem a little noisey!

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A well looked after sleeve engine is an engine to behold, never owned one unfortunately. I also understand that to hear the engine running is quite rare, quieter than a R.R.

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Thanks for link SWH, pictures speak a thousand words. Despite the obvious advantages of the engine design being smooth and almost silent in operation clearly the disadvantages saw an end to the design. Makes me wonder though why it is modern tech' cannot overcome some of the early disadvantages, not to be which is rather a shame.