Yes, far too frequently, it seems...And doing them in the 456 is a joyous job, if I may be candid. Rocket Scientist? As I recall, he was a fighter pilot. Either way, his knowledge depth is pretty impressive.
David- Both, except I was a fighter navigator (WSO). Work on reusable launch vehicles (XS-1) for DARPA.
Taz is a dream over in the V12 forum / an absolute generous soul with a wealth of knowledge. So appreciate him and all the Fchat supporters!