jcjeant, thanks for the Bob Hoover video. I see him and Chuck Yeager every year at the Reno Air Races. He would come out to Riverside to a small airport to see Art Scholl a lot in the 60's. I was instructing aerobatics back then for Art. What a gentleman and great pilot. He is 89 now so we are lucky to still have him. I saw his last Shrike show about 10 years ago at Reno.
Also takes care of the water container being parallel to the earth idea.