Thread: Think about rollover protection...

Originally Posted by D3Jon

I thought the same thing - that the roofs been cut off. Excluding the windscreen frame which is bent backwards the roof pillars all look like they stood up fairly well, particularly the B pillar judging by the way the cars landed.

Not a lot left to salvage on that one though, maybe engine & box?

Jon

When you cut you only cut as much as need be to affect the extrication,hence the windscreen being bent.The reason for doing as few as possible cuts is that the more cuts the more jagged edges and the more injuries..like lacerations to rescue and medical personell.
John ( disco 44 )

Originally Posted by justinc

Yes I have yet to get a ruling on just how much of a cage I am 'allowed' to have, BUT it will be as safe as it has to be, not fussed about compromise for the sake of regulations. Obviously common sense will prevail, IE no vision obstruction etc then I'll go ahead regardless.

JC

I probably didnt explain it well but according to these guys if you put any cage into for example the rear seats you need to re-register the vehicle as a two seater. I understand what you mean but if you crash without a RW vehicle you will not be insured. I am thinking of another idea for my RRC, as I plan to tour as well with kids. That is run a tube from the front of the car over the roof up the A pillar, then run it over the roof and through the roof onto the rear chage inside the vehicle. I will also use the A pillar tube as a snorkel if I can. This should get around the rules and be safe. It may also give me a roof rack.

The RRC here is something like I imagine is legal
Protection & Performance - Roll Cage Manufacturers - Kit Bent Hoops

and this is excellent, probably not needed in that vehicle but close to what you are talking about..

Roll Cage Image Gallery > Discovery 3 with full internal roll cage

Roll Cage Image Gallery > Discovery 3 with full internal roll cage

Originally Posted by F4Phantom

I probably didnt explain it well but according to these guys if you put any cage into for example the rear seats you need to re-register the vehicle as a two seater. I understand what you mean but if you crash without a RW vehicle you will not be insured. I am thinking of another idea for my RRC, as I plan to tour as well with kids. That is run a tube from the front of the car over the roof up the A pillar, then run it over the roof and through the roof onto the rear chage inside the vehicle. I will also use the A pillar tube as a snorkel if I can. This should get around the rules and be safe. It may also give me a roof rack.

The RRC here is something like I imagine is legal
Protection & Performance - Roll Cage Manufacturers - Kit Bent Hoops

and this is excellent, probably not needed in that vehicle but close to what you are talking about..

Roll Cage Image Gallery > Discovery 3 with full internal roll cage

Roll Cage Image Gallery > Discovery 3 with full internal roll cage

Thanks for that, I think it was psimpson that sent me this site link also a little while ago when I was thinking of a Defender. I will take some of these pics to the manufacturer when he quotes on the Rangie cage, along with the local regs.

Thanks again

JC

Here : Welcome to the Asscociation of Land Rover Clubs look at "Regulations" and there's an excellent section on rollbars. They've been dealing with that sort of thing for many, many years and the designs are apparently well-proven.

There used a be report online that I can't find now to do with a problem with the then-new Perenties rolling over. It seems that it wasn't such a problem with the leaf-sprung fleet. Probably something to do with those funny curly springs you guys seem to like!

I'm going to build something for my Landie, though I've still got to work out what pipe to use. I'm in the middle of nowhere so I don't have the resources I would in a big city for engineering and so on.

Re insurance. The insurance will only not pay up if your modification has caused the accident, or made it worse, and you've not told them about the mod.

For example, if you have an 6" lift and 37" tyres, and roll it around a corner...pretty easy to demonstrate the risk was increased with the extra height. But if the same car was hail-damaged or rear-ended they'd pay as neither of those have anything to do with the mod, but only based on what you've told them (ie, wouldn't give you 37s if you had insured 31" road tyres).

So re rollcages, if it's made the problem worse or caused it then you have an issue. If not, it's ok.

A seperate question is whether it is roadworthy, which has legal implications. Possible to be done for that and still be insured, and vice-versa. The insurance company does have a get-out about not complying with roadworthy, but take them to the obudsman over that and they'll need to prove it a) increased their risk and b) didn't know about it.

Heres some pics I found on the net, internal and external type cages

Vern and defend, thanks for the replies. I'm sorry but I missed the email notification saying you'd commented. Yeah, I've been thinking about it since and have seen a few low speed fall overs at least, but not full rollovers. Have seen how it can easily happen. take care
cheers Gerald

The above pics look pretty,,
not sure how good it would work though,,
any sort of sideways force and it just pushes over,,

and some serious info,,


Cold Drawn Seamless (CDS)
Minimum yield strength 350 MAP
Non-homologated* roll cages
Used internationally in motorsport competition
Difficult to obtain
USA best quality
European has a rough skin texture
Cold Drawn Welded (CDW)
Hi-tensile, minimum yield strength 420 MAP
Recommended for amateur motor racing
For non-international and non-homologated cars
Used in CAMS approved competitions
No local products
More easily obtained
Imported from USA, Japan best quality
European darker skin
Cro-Molly
Minimum yield strength 650MPA plus
Requires engineer-certified homologation
Preferably TIG-welded
Used internationally and locally
More expensive product
For light-weight roll-over protection at a high level of competition
Not recommended for amateur racers on a tight budget