s

Slomoshun
World Famous Hydroplanes
& the people who created them.

Design &
development of tail

Design & development
of steering mechanism.

Strut Design & Development

Note:I have had so many
requests for more information
about the true story behind the design and development of Slo-mo-shun IV that I have decided to put the information online as I am working on it.
So don't be surprised if it changes as we go along.

If you have comments or suggestions send them to

Dick Carroll

Homepage

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The Evolutionary Design
& Development of Slo-mo-shun IV

Evolution of steering assembly
design & development

Please keep in mind that I am only showing you
the form or shapes of the system and then only the external stern mounted segments.
There were so many other changes made to its
internal components it will take me quite awhile to cover it all.
Dick Carroll & DeWitt Jensen

Insert Teds original Sketch of tail (when scans are done) I can tell you it does not include any description of the steering assembly nor does he supply any notes or specifications for building one.	October 1948
Insert Anchors Original Plan #1 of Tail (when scans are done) This drawing shows the first indications of steering and rudder componets and possible placement	October 1948
Insert Anchors Original Plan # 2 of Tail (when scans are done) This drawing shows a specific placement for original rudder and assembly	November 1948
	October 1949 When the boat was originaly launched in October 1949, it had a single center rudder and direct steering with 4-19 steel cable.Attached to a quadrant on transom
	April 1950 In April Anchor Jensen came up with the idea of using two rudders to see if they would have a tunnel drive effect. The force of the water off the prop continually bent the port rudder almost and inch and a half
	June 1950-51 Anchors solution was to cut the port rudder off and then take her out for a test run. And as they say that was that...although they used this single rudder configuration untill the end the mechanism changed. Note that Ted had little or no input on these steering designs and he leaves the Slo-mo team in Sept of 1951. But the design work continues
	June 1952 Here again the mechanism is modified and a different rudder added.
	June 1954 Then finally Anchor installs the power steering.The original unit was from a Chrysler automobile and Anchor tweaked and reduced its sensitivity untill it was suitable for operating Slo-mo IV. And he left the original mechanical steering in place as a backup.