You’re rather entertaining, mr0077, or Ken Smith. I asked for data and documentation on the proper mounting of a three point system. You didn’t (or more likely can’t) supply it. Instead, you chose to attempt to discredit both myself and the sanctioning body I work for.

You stated: “Without roll cages and other intelligent safety upgrades, the 5-point is only marginally better than the 3-point.” I’ll make my point perfectly clear: Prove it.

Speaking of reading capability: In one of my previous posts with regard to this issue, I mentioned SFI on several occasions. I’m sorry, I assumed someone such as yourself would know what I was talking about. SFI is a foundation devoted to the testing and development of safety equipment along with safety regulations, primarily used in motorsport. You might remember seeing their logo on specific safety equipment products. The NHRA updates their safety regulations in concert with SFI testing. The following manufacturers are participating members in the SFI Performance Specification 16.1 (Driver Restraint Assemblies) program:

Aerospec (Australia)
Amspec, Inc.
Auto Power Industries
Auto Pro/Racer Wholesale
Bell Motorsports/Pyrotect
Chute Metal Corporation
Crow Enterprises, Inc.
Deist Safety Equipment
Excel Race Products
G & B Safety Equipment
Guyon Racing, Ltd.
Hooker Custom Harness
Illinois Ballistic Products
Jager Safety Equipment
Leaf Racewear
Luke Racing Systems, Ltd.
M & R Products
Momo USA
OMP Racing
Red Wood Enterprises
RJS Racing Equipment
Racer's Choice, Inc.
Rich Safety Restraints
S-Line
SafeQuip
Schroth Restraint Systems Corp.
Sparco s.r.l.
Speedway Specialties
Stockridge Racing (Willans) (England)
Stroud Safety
TAK Racing Enterprises
Taylor Motorsports Products
Team Simpson Racing, Inc.
TEAMTECH Motorsports Safety, Inc.
TNT Performance
Total Restraint Systems, Ltd. (England)
TRW/Sabelt
Ultra Shield Race Products
Vulcan Chain Corp.

Why is this list important? When a sanctioning body approaches the SFI with regard to regulations, the SFI Technical Committee begins the specification process. To quote the SFI: “Technical committees are comprised of individuals from all facets of industry, scientific and motorsports sanctioning organizations with expertise in their areas of endeavor to provide a comprehensive cross-section of knowledge.” While the spec is being developed, the SFI encourages manufacturers such as those listed above to participate. In case you haven’t figured it out by now, NHRA safety regulations are based upon considerable past experience as well as findings of the SFI.

The following is a list of sanctioning bodies that are members of the SFI Foundation, Inc. Each of these sanctioning bodies incorporate SFI Specifications within their respective rule books. Some of these names may be recognizable to you. By the way, the SFI also provides a technical and chassis inspector certification program that is used by a number of the following organizations. This may give you some insight into your question: “When someone complies with the NHRA rulebook attach geometry, how does a safety inspector know that the structural integrity of their framework is suitable without an analysis of their frame?” And as a matter of fact, the NHRA uses SFI specifications for chassis construction.

ADBA - American Drag Boat Association
AHDRA - All Harley Drag Racing Association
AMA - American Motorcyclist Association
ANDRA - Australian National Drag Racing Association
ATPA - American Tractor Pulling Association
CART - Championship Auto Racing Teams
CSDBA - States Drag Boat Association
DEKRA - DEKRA Automobil AG
DRL - Drag Racing Ltd.
FFW- Fun Ford Weekend
FIA - Federation Intenationale De L'Automobile
FHRA - Finnish Hot Rod Association
Goodguys/VRA - Vintage Racing Association
IDRA - International Drag Racing Association
IHBA - International Hot Boat Association
IHRA - International Hot Rod Association
IMCA - International Motor Contest Association
IRL - Indy Racing League
ITPA - Illinois Tractor Pulling Association
MTRA- Monster Truck Racing Association
NDRG - Norsk Dragracing Gardernoen
NHRA - National Hot Rod Association
NIRA - National Import Racing Association
NMCA - National Muscle Car Association
NMRO - National Mud Racing Organization
NSCA - National Street Car Association
NTPA- National Tractor Pullers Association
NZDRA - New Zealand Drag Racing Association
SBF - Svenska Bilsportforbundet
SCCA - Sports Car Club of America
SCTA - Southern California Timing Association
SDBA - Southern Drag Boat Association
Svensk - Swedish Drag Racing Association
SLDBA - St. Louis Drag Boat Association
UHRA - Unlimited Hydroplane Racing Association
USAC - United States Auto Club

As far as the differences between military aircraft, GA aircraft and say, something like an acro plane (Pitts, Extra, etc.), why don’t you contact Bob Stroud at Stroud Safety Equipment. He has an intimate knowledge of aviation safety equipment. If you talk to Bob, tell him I said “Hi”.

I hope that answers some of your questions. As I alluded to previously, you’re amusing. Instead of providing documentation on how to properly mount a three point system, I’ll be polite and say you’re simply off and running, skirting the issue completely. You haven’t provided anything except your opinion. Unfortunately, your opinion means nothing to me. And speaking of absurd: Even more unfortunate is the fact you are meddling with the safety of others, with nothing to offer except criticism of me and bravado for yourself and your buddies. I can sleep at night. Can you?

And by the way, I’m still waiting for your three-point installation documentation.

Wayne Scraba
Wayne Scraba Motorsports
Kirkham Owner & Dealer