Posted 11 December 2003 - 08:23 PM
Both Hall and Thiokol people went to CTEC; Jan Leonard of Thiokol actually founded CTEC. Yan's guys went out on their own and formed small consulting and Yan product companies. I know of two: Ken Pearson does redesigns, consulting, and parts for older Yans; and a guy whose name I can't remember started Pol-X West, a Yan detachable grip replacement outfit. As for the chairs, it's entirely possible that CTEC copied Yan's design- Poma copied Doppelmayr's detachable carrier design (with modifications, of course) when they designed the new Omega chairs.
Member, Department of Ancient Technology, Colorado chapter.