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Re: Chassis Tubing

To: "Lawrence E. & Cathy R. Mayfield" <lemay@hiwaay.net>,
Subject: Re: Chassis Tubing
From: "Keith Turk" <kturk@ala.net>
Date: Tue, 15 Feb 2000 07:10:53 -0600
How did George's Salt sonnet hold up by the way... I know he walked away
but I was wondering how well the cage did.  I have several Pictures of the
car through the years.... and pictures of Rich Manchens Alfa in the chassis
stages... (now there is a piece of art work )

I have looked at Mayf's car very critically in the last couple of months
and here is another great car.... What Mayf is doing that is absolutely
right is that he bought a Quality Chassis kit and installed it to the
Manufactures directions.... To include Tig welding which he had never done
before. ( I think there is more to his Back Round then he is Professing...
his Welding Skills are Pretty damn Good ) In any case Mayf's is another car
that I would stick my son in....( my qualifier as to quality )

Keith
----------
> From: Lawrence E. & Cathy R. Mayfield <lemay@hiwaay.net>
> To: Wester S Potter <wspotter@jps.net>; Mike Manghelli
<mmanghel@hughes.net>; John Beckett <landspeedracer@email.msn.com>; Tom
Neimeyer <3cbxs@ev1.net>; Land Speed <land-speed@autox.team.net>
> Subject: Re: Chassis Tubing
> Date: Monday, February 14, 2000 12:30 PM
> 
> For anyone interested, I got my structural analysis program off the net.
It
> is called Cadre. Joint fixity, pipe size, etc can be included. It will
give
> loads and deflections. But the hard part is estimating the amount of
input
> (eg crash loads) to make it work ok. 
> 
> mayf
> At 08:04 PM 2/14/00 -0700, Wester S Potter wrote:
> >Mike, List,
> >When you see the results of the forces some of these cages and frames
are
> >subjected to in an "incident" the question is not just is the tubing
strong
> >enough but is the bracing and welding up to absorbing the forces.  Mayf
> >mentioned a while back that he had the triangulation figured out on his
> >cage.  I thought at the time that it would be nice to have a rocket
> >scientist or a structural engineer to run such a structure by just to
make
> >sure things were properly thought out.  The days of Harvey Haller and a
roll
> >bar shorter than the top of his head are thankfully over on the salt. 
The
> >ruling a few years ago requiring the additional roll-cage distance
forward
> >from the front of the face shield caused some grumbling but made such
good
> >sense.  I have no idea of the qualifications of all the inspectors but
would
> >hope that those with the knowledge would have the guts to step up and
say
> >something when they think a critical structure is not properly built.
> >Wes ... with a square of George"s Salt Sonnett as a reminder.
> >----------
> >> From: "Mike Manghelli" <mmanghel@hughes.net>
> >> To: "John Beckett" <landspeedracer@email.msn.com>,"Tom Neimeyer"
> ><3cbxs@ev1.net>,"Land Speed" <land-speed@autox.team.net>
> >> Subject: Re: Chassis Tubing 
> >> Date: Sat, 15 Jul 2000 17:55:13 -0700 
> >> 
> >>John,
> >>
> >>You are correct about the added tubing and bring up a good point about
the
> >>motorcycles.
> >>
> >>Skip, this sounds like another one for the rules committee to look at,
add
> >>it to the list.
> >>
> >>Mike Manghelli
> >>SCTA President
> >>-----Original Message-----
> >>From: John Beckett <landspeedracer@email.msn.com>
> >>To: Tom Neimeyer <3cbxs@ev1.net>; Land Speed
<land-speed@autox.team.net>
> >>Date: Monday, February 14, 2000 6:44 AM
> >>Subject: Re: Chassis Tubing
> >>
> >>
> >>>Tom
> >>>
> >>>Generally the extra weight of the larger tubing isn't a problem with
LSR
> >as
> >>>it would be in drag racing. And the added security of the larger
material
> >>>may well be worth the slight extra cost. Hey the I/BGS record is 253
MPH!
> >>>
> >>>I've often wondered why Motorcycle Streamliners are allowed 1 1/4-inch
x
> >>>.090" tubing when some of these guys are running over 300 MPH.
> >>>
> >>>John Beckett, LSR #79
> >>>
> >>>----- Original Message -----
> >>>From: "Tom Neimeyer" <3cbxs@ev1.net>
> >>>To: "Land Speed" <land-speed@autox.team.net>
> >>>Sent: Sunday, February 13, 2000 9:59 PM
> >>>Subject: Chassis Tubing
> >>>
> >>>
> >>>> LSR'ers,
> >>>>   In the next year I plan on building a small streamliner.  My
> >>>understanding
> >>>> from reading the rule book is that I can build the frame/rollcage
from 1
> >>>5/8
> >>>> .120 thick  DOM steel tubing.  Is this correct?  The liner will be
> >either
> >>>> H/GS or I/GS or possible H/BGS or I/BGS.  Any benefits to use 1 3/4
?
> >>>>
> >>>> Thanks, Tom
> >>>>
> >>>>
> >>>
> >>>
> >>>
> >>
> >>
> >
> >
> >
> >
> 
> 
> 
> L.E. Mayfield
> 124 Maximillion Drive
> Madison, Al. 35758-8171
> ph: 1-256-837-1051
>  
> http://home.hiwaay.net/~lemayf
> 
> lemay@hiwaay.net 
> 
> Sunbeam Tiger, B9471136
> Sunbeam Alpine Bonneville Land Speed Racer, 
> '66 Hydroplane Drag Boat (390 FE)

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