Man, you guys should see the tires used on .the SR-71. Heavy doesn't even
come close.
----- Original Message -----
From: "Bryan Savage" <basavage@earthlink.net>
To: "Albaugh, Neil" <albaugh_neil@ti.com>
Cc: "'John Burk'" <joyseydevil@comcast.net>; <land-speed@autox.team.net>
Sent: Monday, February 23, 2004 5:13 PM
Subject: Re: So Cal Lakester - wheels & 'tyres'
> Neil,
> You made a question pop into my head. The military has had landing
> system problems with
> fast X-planes. To my knowledge, the USAF as only used wheels with
> inflated tires or
> skids (X-15). If there was a better way, wouldn't they be using it?
>
> Bryan
>
> Albaugh, Neil wrote:
>
> >John;
> >
> >For years people have been coming up with various schemes for replacing
the
> >pneumatic tire (tyre for Malcolm) but those have never been completely
> >satisfactory-- for various reasons.
> >
> >One of the most important features of the pneumatic tire is its ability
to
> >generate tread distortion when run at an angle; this "slip angle" creates
a
> >restoring torque, generating the lateral force necessary to go around a
> >corner.
> >
> > Going back to forklifts (no, not RWS) those solid rubber tires are
> >miserable to drive and have a pretty short life. Their ability to
transfer
> >every bump and vibration to the chassis is almost nil. Keeping the
> >wheel/tire combination in contact with the ground will be a problem with
the
> >solid urethane tire approach, I suspect.
> >
> >This seems to be a "semi-solid wheel". I'd suggest approaching higher
speeds
> >in small steps as handling problems might show up with these that had not
> >been apparent with standard pneumatic tires.
> >
> >Regards, Neil Tucson, AZ
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