These were not graded, just common hardware. Never even considered it in
this type of application. Obviously, I should have, but a result of the
crash not the cause.
Tom
-------Original Message-------
From: neil@dbelltech.com
Date: 10/14/09 16:27:44
To: 'Tom Bryant'; 'Joe Timney'
Cc: 'LAND SPEED LIST'
Subject: RE: [Land-speed] Fire Bottle Mounting Schemes
Tom;
What kind of bolts & nuts were the ones that failed? Were these commercial
Grade 5 or Grade 8? Looking at the markings on the head of each bolt will
tell the story.
Learning from data like this will be a help in the future to other racers.
Regards, Neil Tucson, AZ
-----Original Message-----
From: land-speed-bounces@autox.team.net
[mailto:land-speed-bounces@autox.team.net] On Behalf Of Tom Bryant
Sent: Wednesday, October 14, 2009 9:04 AM
To: Joe Timney
Cc: 'LAND SPEED LIST'
Subject: Re: [Land-speed] Fire Bottle Mounting Schemes
This is just for thought. I found that bolts securing many things on my car
did not stand up to what the car went through the crash. Three 5-pound
bottles were secured as a group by 4 - 1/4" bolts and the oil tank was
mounted with 4 - 5/16 bolts. Both were striped from the car, shearing the
bolts and tearing loose from the fire bottle actuator cables and oil tank
steel braided hoses. I had Deist aluminum bottle brackets on the bottles
which survived fine, What is interesting is that the Nitrous bottles, which
are much heavier, stayed in place.
Tom
-------Original Message-------
From: Joe Timney
Date: 10/14/2009 7:25:07 AM
Cc: 'LAND SPEED LIST'
Subject: Re: [Land-speed] Fire Bottle Mounting Schemes
I have 4.0", 4.25",4.375",5.0" and 5.250" diameter clamps, black hard
coated with two, 25 dia. thru holes and two, drilled and tapped .25-20
thrd. What size bottles do you have???
You could use a flat plate, mount the bottles and brackets to it, then
mount the plate.
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