Howdy, this might work a little better....but there is still the problem of
matching the fin to the steering, with the over/under input troubles that
may occur. too much fin and you slow down too.....don't think we want that.....
At 01:58 PM 5/25/00 , you wrote:
>So, what if you don't put the fin on the roof,
>but hang it out the back more like a rudder on a
>boat?
>
>Dick J
>--- john robinson <john@engr.wisc.edu> wrote:
> > Howdy,
> > I think the problem that might occur
> > is either too much or too
> > little input from the fin, too little will do
> > nothing, and too much may tip
> > the vehicle over...
> >
> >
> > At 10:39 AM 5/25/00 , you wrote:
> > >Why stop there? Do like Breedlove & add a fin
> > on the roof that moves with the
> > >steering input (wheel) and helps to turn the
> > car with air pressure.
> > >Ed
> > >
> > >
> > >"Hyatt Engineering Ltd." wrote:
> > >
> > > > OK, how about if I steer with both the
> > front and rear wheels, and
> > > propel the
> > > > car with neither (middle wheel drive, see
> > the attachment) !
> > > > The rationale is:
> > > > Directional stability is maintained by the
> > front and rear wheels if the
> > > > middle driving wheels are spun or locked up
> > > > The wheelbase is lengthened without the
> > usual compromise in chassis
> > > > stiffness associated with the extreme span
> > from front to rear wheels in the
> > > > conventional arrangement
> > > > The engine (most of the mass) is far
> > forward, and the center of aerodynamic
> > > > pressure is rearward so it is self
> > correcting and inherently stable at
> > > speed
> > > > The drivers tank is at "zero energy state",
> > with the engine, fuel, battery
> > > > and other sources of potential energy in
> > the other tank
> > > > The loading of the steering wheels
> > (relative to the driving wheels) is to a
> > > > considerable extent adjustable by jacking
> > them without moving the center of
> > > > gravity
> > > > I call the steering "telemark" style, in
> > that the curve is carved by front
> > > > and rear wheels turning in opposite
> > directions, just like you do when
> > > > downhill skiing on cross country skis (the
> > telemark (sp?) technique)
> > > > Of course we will never know if it works,
> > if it remains illegal.
> > > >
> > > > Greg
> > > > PS John, I was planning on doing this with
> > the tanks I bought from you last
> > > > year, which turned out to be from the F-84F
> > (the USAF museum is just down
> > > > the road from me, the ultimate resource for
> > such info)
> >
> >
> > 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
> >
> >
>
>
>__________________________________________________
>Do You Yahoo!?
>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
|