Today was appearance judging at the Nats. I was there in my JCT uniform. The coolest plane was Paul Winter's, which gave strong evidence that Chesley Bonestell took LSD. There were some interesting aerodynamic devices. Paul Walker had PJ VGs. Frank Williams also had VGs, but put them where an aero engineer would put them. I don't know which works better, but Paul did multiple trials and convinced himself that PJ is onto something. Frank also knows that "tail volume" is not the whole story. Wes Dick, who won third in Senior at the 1953 Nats, had some bidirectional double-slotted flaps, of which he was justifiably proud. This requires a fancy mechanism to work, and he made one.
I regret that I don't know how to interleave text and pictures here, so here they are in a pile: