Originally Posted by Malbec
I agree, however I also doubt how much effect that would have in a massive pile up as at Las Vegas.
One big factor behind accidents like this and Mark Webber's in Valencia is that while the open wheels allow contact between cars to flip up, the reason they fly so high isn't due to the energy received from the rotating tyre but because once substantial amounts of air get down below the flat low chassis it drives the whole car up. This cannot be resolved easily.
Canopies aren't necessarily the answer either. I believe the polycarbonate canopies used recently in FIA trials are from F16s, and that two F16 pilots have been killed in non-penetrating birdstrikes where the canopy deformed enough to hit the pilot causing fatal brain and spinal injury. Polycarbonate canopies are also heavy enough to make removing them in case of an accident a serious problem, and one ought to remember that accidents that require rapid access to the cockpit without penetration are far more common than penetration injuries to the cockpit.
Many of the factors behind the tragic accident are peculiar to Indycar, open wheel racing on oval tracks with spec chassis at high speed, very little field spread with cars often 3 abreast. In addition to that sadly at Las Vegas a few extra drivers who were race-rusty were added onto the field, including Dan Wheldon himself, although I'm sure that wasn't a factor in his involvement.
As David Coulthard's article in the Telegraph indicates though Indycar had a reputation amongst drivers for relatively high risk racing, a reputation borne out by the high number of deaths and injuries relative to F1. It was their choice and ultimately isn't that why we the fans hold these guys in awe? They know the risks and yet they still face them week after week, that indeed makes them special.