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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am not a metallurgist, but I am a retired aircraft structural
engineer and I played one at work for 30 years. What was stated about
hydrogen embrittlement of high-strength steel during chrome plating is true.
The effects are mitigated by proper heat treatment after plating. Although I
haven’t done any analysis of broken spokes, my empirical experience with stainless
spokes has been that one broken spoke has no detectible reduction in the performance
of the wheel, but more than one can produce vibration if they happen to be
close to each other. One broken spoke will result in additional loading of
adjacent spokes, eventually resulting in their failure . The vibration is most
likely from the deformation of the wheel in the absence of the spokes.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Steve Byers<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>HBJ8L/36666<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>BJ8 Registry<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>AHCA Delegate at Large<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Havelock, NC USA<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Michael Oritt
[mailto:michael.oritt@gmail.com] <br>
<b>Sent:</b> Monday, January 6, 2020 8:02 AM<br>
<b>To:</b> Mirek Sharp<br>
<b>Cc:</b> Max Byers; Austin Healey<br>
<b>Subject:</b> Re: [Healeys] Wheels/Tires<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>I am not an engineer but I did play one when I was a kid
with a Lionel train set.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Best--Michael Oritt<o:p></o:p></p>
</div>
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<p class=MsoNormal><o:p> </o:p></p>
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