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Tailwheel stinger

scottly

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Ok...I'm throwing this out there for discussion because I just can't find a whole ton of info on this subject.


I plan on using 3/4" 17-4 precipitation hardened stainless steel rod for a tailwheel spring. I see some of these units of varying sizes, such as on the Model 12 that is 1" at the airframe, tapering to 3/4" at the tailwheel.


The Skybolt appears to use a 1/2" (?) rod...




WHat is the purpose of the taper?? Is it for spring progression?


By my calcs, the 3/4" should be stout enough but not to stout.....based on 95lbs on the tail at rest, and about 350 with pilot and passenger...




I need input and ideas here please.... :)





 

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