I too have just come to understand the valveless potential. I like Foa's design. was there ever any info printed on it?
after reading Bruno's pages on the valveless, and looking Messerschmitt's pulse-ram and looking at Foa's design, couldn't one surmise that Foa's could be used as a Pulse-Ram?
I used Beck's calculated to for valved engine, and then added Foa's idea to the front end, see attached:
I haven't built this yet, but would like to get some feedback on the designs feasability as well as see if anyone has built Foa's design.
Foa design
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