Slomoshun
World Famous Hydroplanes
& the people who created them.

Slo-mo Propellors
1950-1956
From Stan Sayres Personal Journal

For all you folks who have followed the Slo-mos very closely over the years and have kept track of the props used in the major events as reported in the newspapers and magazines like, the two World Record runs, will find that the dimensions and pitch of those
props given by Stan at the time of the event DON'T exactly match up to those in his personal
record. GEE, could it be that Stan wasn't giving up all his secrets, to his competitors, or did he just feel that close enough was good enough. Makes me wanna chuckle just a little.

As in his press release on the 1950 World record run he says he used a 14" x 25" prop and in his personal record he says it was a 13 5/8" X 24.5". Now thats a pretty big difference when it comes to props.

And another of the little things he never mentions is that every prop was personally modified by Anchor Jensen. Each prop was reheated and hammer out to add just the right amount of cupping to each blade. I also have to laugh when I read the letters from Hi Johnson, complaining to Stan Sayres about Anchor constantly messing with his props. But Hi
never mentioned a word about it when The Slo-mo IV crushed the World Speed Record or won the Gold Cup. But then thats another whole story.

Following is a note from Don Ibsen, one of the original crew members:

Dick: I saw your prop list and I have a 3 blade bronze Hi J (Hi Johson) prop #816 that did not appear on the list. I don't know if any records still exist with Hi Johnson people. This prop was used to break in engines, since it was much smoother running.

Dick Carroll

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