The Traffic Accident Reconstruction Origin -ARnews-

Re: Drag Sleds

RICHARD HERMANCE (RHEERMANCE@AOL.COM)
Mon, 16 Dec 1996 17:50:03 -0500 (EST)

I SHARE WITH JOHN SERTH'S CONCERNS OVER VALIDITY OR LACK THEROF OF NUMBERS GENERATED
USING A DRAG SLED. I SEE NO WAY ACCURATE CORELATION CAN BE MADE BY A DRAG
SLED SINCE IN THE REAL SKIDDING SITUATION, THERE IS A LOT OF DAMPING AND MECHANICAL INTERACTION
BETWEEN THE TIRE AND ROAD. THE DRAG SLED MAY GIVE A DECENT NUMBER FOR STRICTLY FRICTION,
BUT DOES NOT GIVE AN ACCURATE ASSESSMENT OF EFFECTIVE DRAG FACTOR IN A
VEHICLE SKIDDING SITUATION. I DID NOT HERE OF THE CASE WHERE DRAG SLED INFO GOT
TOSSED FROM COURT BUT IF ANYONE KNOWS IT, PLEASE E-MAIL ME WITH THE CASE CAPTION.

RHERMANCE@AOL.COM
RICHARD HERMANCE
RHEERMANCE@AOL.COM

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