Glen - I greatly appreciate your interest in my question.
I wasn't considering a high stance on a modified roadster although we have
at least one such doing pretty well in current competition. I understand
the line of thinking behind that approach.
But it's not for me. Primary reason is the one you cited, safety. I
watched Doug earn his spin pin in the Gold-digger 20 years ago. That's
something I don't need..
Personally I believe the sharp nose modified roadster is the stablest most
spin resistant configuration of all the body styles in landspeed racing. I
want to go as low as I can. I plan a suspension on the rear; but it'll be a
rough ride with limited travel. My fat posterior has plenty of cushioning;
so that doesn't worry me.
I do like Tom Bryant's suggestion about the sacrificial skirt in the front.
I wonder how far around the body a skirt has to go to be effective. The
doorslammer guys just put air dams on the front under the bumper area. But
the modified roadster has a wedge shape with the 27T body sides at the
bottom blending into parallel with the centerline somewhere around the rear
side of the door location. Need some research here.
I have a feeling that a sacrificial shirt made of roughly 3/16 ABS plastic
sheet would have the right combination of strength and ability to wear
without shattering.
Tom - You or anyone else have specific experience to share?
Thanks, everyone for taking the time to share your ideas with me.....Ed
Weldon
----- Original Message -----
From: <speedtimer@beyondbb.com>
Sent: Friday, November 04, 2011 4:05 PM
Subject: Re: [Land-speed] Belly pan minimum height or clearance
>I agree with Neil.8 to 10 inches of height could cause lift and even blow
>over conditions. Going into a spin and getting backwards it would probably
>get airborne.
----- Original Message -----
> From: "23weldon" <23.weldon@comcast.net>
>> Thanks, Neil -- I'd like to get closer than that if I can but I'm not
>> hopeful. My belief is that every inch of ride height in that low range
>> is that times the body width increase in effective frontal area.
>> There is a small school of thought relative to roadsters that says
>> raising the body off the ground begins to pay off at some point; maybe 8
>> to 10 inches. That's a direction I don't want to go in for a number of
>> reasons.
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