Really sad, sad events, and so close together. I can only wish the families will be able to handle it.
I can say that we (NCRC & ARC) have had similar troubles with lunchtime drive-arounds. We had to red-flag one due to excessive speeds, and will probably run them all with pace/chase cars from now on. It's great to let folks get out on the track and show their spouse what it's like, etc, but people do have trouble slowing down.
An article I wrote earlier this year, might help some of the folks who're just starting the search for such devices:
Head and Neck Restraint Devices
There has been some discussion lately of using head and neck restraint devices in driver’s education (DE) events such as those held by NCRC. Below is a summary of the main types and brands of devices on the market. This is a summary of the devices, and not comprehensive scientific research. Hopefully it will give you an idea of what these devices do for you, and where to continue your research.
The main purpose of these devices is to restrain the violent movement of the head in a sudden collision, either from the side or the front, which can cause basilar skull fracture. These injuries are purported to be responsible for half of all road racing deaths. All of these assume you already have a full 5 or 6 point harness and a helmet.
• The Hans Device (www.hansdevice.com) has been around for quite a while, and is the most popular among pro racing (F1, IRL, CART require it). This unit sits on the driver’s shoulders, and is held in place by the existing shoulder harnesses. It then has straps to the helmet to restrict head movement. It tends to fare well in lab tests, but takes a bit of heat for being cumbersome on first use. $975-2000 depending on specs.
• Isaac (www.IsaacDirect.com) takes a slightly different approach to all the other devices, in that it uses small shock absorbers that connect from the shoulder harness to the helmet. So the head motion is not restricted suddenly as with the straps on all other devices, but damped more gradually (if the word “gradual” is even relevant here). Gregg Baker of Isaac is very active on message boards, and Isaac seems to have the most relevant comparison content on their web site. See
http://www.isaacdirect.com/html/chart.html, for example. $895 will get you the Isaac System
• G-Force SRS-1 (www.gforce.com) is a simple head restraint system, which is similar to HANS. This device attaches a strap to the rear of the helmet, which is held in place by a bar that sits behind the shoulders, under the harness. G-Force makes helmets, and only certifies their device with their own helmets. $280 (w/o helmet)
There are also several restraint systems that are made of straps that wrap around the body and attach to the helmet. There have been complaints about these systems, as they rely on the straps being accurately adjusted for size and positioning on the driver. If not, they may cause spinal compression or other damage in an accident. These systems include:
• Hutchens Device (www.hutchensdevice.com) claims to be the most popular head restraint system, and is worn by many NASCAR drivers. $325.
• D-CEL, also manufactured by Hutchens (www.hutchensdevice.com), claims to be the only device that truly protects against side impacts as well as frontal (most impacts are from the front). $425
• Simpson (http://www.simpsonraceproducts.com) sells a restraint system that looks to be virtually identical to D-CEL, and may actually be a re-badged product. $450
• Wright Device (www.over40racing.com) is another webbed device that attaches the helmet to a harness on the body. Interestingly, it is available either as a complete product, or as a set of instructions for the do-it-yourselfer to build at home. $150 for the product, DIY instructions are free
There is some concern about the mounting points on helmets, which require drilling and fitting hooks for attachment of the restraint devices. The helmet manufacturers are in a bit of a predicament over this. G-Force is selling helmets pre-fitted for these connections, and it’s likely other brands will or are following suit.
For additional information on how various systems perform during testing, check the SAE web site at www.sae.org. For a small charge, you can download two relevant technical papers (2002-01-3304 and 2002-01-3306), which describe these tests.
For additional web surfing info, check the message boards at
http://www.specracer.com/ and
http://forums.improvedtouring.com/Dave