Yes he did crash the three wheel car after both chutes failed as well as the
brakes, all steering was through the front wheel and a small steering rudder
below the front portion of the car.
------Original Message------
From: john robinson <john@engr.wisc.edu>
To: Richard Kensicki <richk@sparta-junction.com>
Sent: May 30, 2000 12:26:08 PM GMT
Subject: Re: Front and Rear Steering Thoughts...
Didn't Breedlove crash his three wheeled jet car?
At 07:09 PM 5/26/00 , you wrote:
>Didn't Breedlove use differential braking to (help) steer his 3 wheel jet
>car?
>Rich
>
>dahlgren wrote:
>
> > and slow it down too maybe ????? really want to try differential braking
> > at 300 . You are a very brave man
> > Dahlgren
> >
> > Dick J wrote:
> > >
> > > Mayf, what if there was no steering at all. I
> > > mean in the traditional sense. Both wheeled and
> > > tracked tractors have split brakes, and a few
> > > years ago dune buggies had split brakes to make
> > > them turn sharper. It would seem that at higher
> > > speeds, very slight brake input to one side or
> > > the other should be sufficient to steer the car.
> > >
> > > Dick J
> > >
> > > --- "Lawrence E. & Cathy R. Mayfield"
> > > <lemay@hiwaay.net> wrote:
> > > > Date: Thu, 25 May 2000 16:21:14
> > > > To: land-speed@auox.team.net
> > > > From: "Lawrence E. & Cathy R. Mayfield"
> > > > <lemay@hiwaay.net>
> > > > Subject: Front and Rear Steering Thoughts...
> > > >
> > > > Wow, what an interesting thread! I sat down a
> > > > few moments ago to think
> > > > about all that I had read on the thread and to
> > > > see if what I had read I
> > > > understood. First, there were many thoughts
> > > > about why do a rear steer if it
> > > > is not needed? What are the benefits. Well I
> > > > assumed that rear steer was
> > > > being used (thought about) because the wheels
> > > > in front are pulling the car
> > > > instead of pushing it. Being able to steer from
> > > > the rear wheels would seem
> > > > to reduce the complexity at the front by
> > > > reducing the steering knuckle set
> > > > ups, CV joints or u joints, etc. Putting the
> > > > steering at the back wheels
> > > > seems so logical in this case because we would
> > > > then just be running the car
> > > > backwards so to speak. And we all have had some
> > > > sort of experience in
> > > > backing up..most of the time we make mistakes
> > > > (you ought to see my driveway
> > > > - car tracks over the lawn on both sides). I
> > > > attribute this to looking over
> > > > my shoulder while going backwards. But in a
> > > > purpose designed car I would
> > > > hope to be facing forward! So what is it that
> > > > makes this so difficult.
> > > > There was some thoughts about the facts that
> > > > the drive wheels arrive at the
> > > > corner first and we have to think ahead to make
> > > > it work right. For sure!
> > > > However, I don't think this is the reason
> > > > straight line cars experience
> > > > difficulty.
> > > >
> > > > Danger Warning Will Robinson...read at your
> > > > own peril....outlandish
> > > > thoughts from here on...
> > > >
> > > > Ok, now that the disclaimer is out of the way,
> > > > here is what I think. We
> > > > all grew up being taught that in a skid we need
> > > > to turn the front whel into
> > > > the skid to regain contro. And why is that,
> > > > well after drawing a small free
> > > > body diagram, I see that when the front
> > > > steering wheels are turned in the
> > > > direction of skid the rear drive wheels tend to
> > > > drive the car into that
> > > > direction giving directional control back to
> > > > the driver. Thia is all pretty
> > > > straight forward.
> > > >
> > > > Now what happens when a front drive rear steer
> > > > goes into a skid. Our
> > > > training says to turn into the skid. Right? So
> > > > if we turn into the skid,
> > > > the drive wheels pull the car even farther off
> > > > into the skid. This most
> > > > obviously causes consternation and a lot of
> > > > over correction. The truth is,
> > > > that in a rear steer car the steering wheels
> > > > must be turned away from the
> > > > skid not into it. That way the drive wheels
> > > > will pull the rear of the car
> > > > around and back into directional control.
> > > >
> > > > One list member correctly, I believe, hit the
> > > > nail on the head. It is all
> > > > what we grew up with. Had we been driving rear
> > > > steer all along, we would be
> > > > having this discussion about front steer! I
> > > > think that a well designed car
> > > > with the driver brainwashed into the correct
> > > > manuevers to get out of spins
> > > > and skids would fare just as well as any other
> > > > car.
> > > >
> > > > Would there be any interest into building a
> > > > small go kart size test
> > > > vehicle? Heck even a go hart would work. Just
> > > > need to put the driver and
> > > > control in so that the driver faces the "front"
> > > > drive wheels and rig the
> > > > steering. The get out on the skid pad with some
> > > > wet skids and see how to
> > > > control? Heck, maybe this is my "barstool" pit
> > > > machine...
> > > >
> > > > Control is now returned to the reader.
> > > >
> > > > mayf (with migraine so thoughts may be fuzzy)
> > > >
> > > >
> > > >
> > > > L.E. Mayfield
> > > > 124 Maximillion Drive
> > > > Madison, Al. 35758-8171
> > > > ph: 1-256-837-1051
> > > >
> > > > http://home.hiwaay.net/~lemay
> > > >
> > > > lemay@hiwaay.net
> > > >
> > > > Sunbeam Tiger, B9471136
> > > > Sunbeam Alpine Bonneville Land Speed Racer,
> > > > '66 Hydroplane Drag Boat (390 FE)
> > >
> > > __________________________________________________
> > > Kick off your party with Yahoo! Invites.
> > > http://invites.yahoo.com/
>
>
John Robinson, Mechanician
Mechanical Engineering University of Wisconsin
1513 University Ave.
Madison, Wi. 53706
608-262-3606
FAX 608-265-2316
Current World Land Speed Record Holder
Bonneville Salt Flats
H/GCC 92 cu.in. 1980 Dodge Colt
131.333 MPH set 1995
136.666 MPH set 1996
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