Done on Oahu, Hawaii, back in the very late 60's or early 70's. It
was over 70 hrs., close to 72 hrs. I believe one of the pilots was
Tom Winkler, and I think it was in a SGS 2-32. It was done ridge
flying the windward side of Oahu, the Kokolous range( I could of
spelled that wrong). I believe Duration records were removed shortly
after this, as some tried to stay up longer, and a crash happen with
loss of life. # 711.