RE: Mirror Wars

["Danilowicz, Paul S." <danilps@xxxxxxxx>]

Here's something to think about....

I've seen many times that people jump to the conclusion that the solution is to make something stronger, stiffer, or bigger to fix problems.   If this problem is an aerodynamically induced oscillation and not road vibes,  then fairing stiffeners may not be the way to solve the problem.   

Perhaps, a small trim tab, spoiler, or some other aerodynamic stabilizer is the key.  
> Paul
> 
> ----------
> From: 	dan & ann curcio[SMTP:curcio@xxxxxxxxxx]
> Sent: 	Wednesday, August 18, 1999 11:48 AM
> To: 	ST@xxxxxxxxxxxxxx
> Subject: 	Mirror Wars
> 
> As promised, here are the results of Round 1 of "Fairing Brace vs. ST".
> ST wins with a decisive knock out.  Brace sent to the showers shaking
> and quivering after exposure to the infamous ST virus, but vowing "I'll
> be back".
> 
> Here's what happened.  After installation of the brace on the right side
> I noticed an immediate improvement in the stiffness of the fairing
> extension and the windshield assembly on that side.  The left side was
> still as wobbly as before.  It was looking very promising.  Everything
> went together smoothly and there was no way to tell the brace was there
> by comparing the two sides.  So it was off for a ride.  At speeds up to
> 50 mph the right side was showing promise as the fairing extension was
> rock solid on that side.  After 50 mph things started to go downhill.
> As I approached 100 mph both sides started shaking as bad as usual and
> after 100 mph the whole mess was reduced to a shaking/vibrating mess.
> It turns out that all I have accomplished is to move the flexing spot on
> the fairing further forward and the general floppiness of the entire
> fairing assembly still takes over in the end.  It was a disappointing
> end to a promising idea.
> So I need to try again.  This time I will try an attack on the mirror
> mounting point itself.  If that can be braced I think it should combine
> with the fairing brace to do the job.  This will take some time to
> figure out as I will need to pull the mirrors, front cowl and probably
> the instrument panel in order to even see what possibilities exist.
> I'll keep the list posted.
> 
> Down but not beaten,
> Dan
> 
> 
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