Nasty NASA GTS crash at Putnam Park on the 19th...

[gt40]

This month seems to be bad for NASA events... This guy is lucky to be alive...

I think its time to re-evaluate not only our harnesses, but also the design of our cages. I know I will...

[GlennCMC70]

if anyone finds out what tube wall thinkness he used, please post it here.

[GlennCMC70]

compair these two pics. i want you to see why i added the bar just behind the side morrors in my car. the red car's cage bent at the A pillar bend at the knee bar. the bars in my cage would help resist that.

[GlennCMC70]

[gt40]

if anyone finds out what tube wall thinkness he used, please post it here.

According to the C-C.com thread, it's 1.750” x 0.120” DOM. I'll be adding similar supports to my cage, along with an additional support from the min hoop to the halo, right next to my head.

[mitchntx]

Not a thing wrong with those supports.

Just make sure you place them smartly so that the driver can get out of the car in a hurry if need be.

Fixing one problem that creates another doesn't solve anything.

[gt40]

Not a thing wrong with those supports.

Just make sure you place them smartly so that the driver can get out of the car in a hurry if need be.

Fixing one problem that creates another doesn't solve anything.

Absolutely! Ingress and egress are important considerations for me (for obvious reasons!)

[AllZWay]

I wouldn't mind adding those bars to my cage.

They definitely would have helped in that crash, but it is really wierd how the tubing just buckled in the straight part....not the bent part.

[Rsmith350]

Yeah but if you read the story behind it that wasn't hit flat. that curved indention was were a tree hit.

[GlennCMC70]

even w/ the bars i'm refering to, the cage would have likely kinked where it did, but the A pillar bar wouldnt have layed down like it did. if you go to the link w/ all the pics on it, you will see alot of distortion to the A pillar bars at the knee bar area. mostly to the passenger side.
i also am rethinking the bar thats required in the T tops cars. having a center bar between the eyebrow bar and the top of the main hoop would add the 3rd bar that had to fail before it would have kinked.

i'll also consider adding tubes to the main hoop and A pillar bars to triangulate that opening.