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Gen 4 recovery points

  • Lambert
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05 Mar 2020 05:29 - 05 Mar 2020 05:31 #219399 by Lambert
Replied by Lambert on topic Gen 4 recovery points
Interesting idea this. So for easy manufacturing use a set of available recovery points but cut off to sit just inside the bumper skin and weld an m36 coupler nut to the side and then have a 5 tonne WLL collared lifting eye to protrude for a shackle. One each side. Plenty strong.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
Bellerophon (2024 grello van daily
ADOS Attention Deficit Ooooh Shiny!
Last edit: 05 Mar 2020 05:31 by Lambert.

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05 Mar 2020 09:07 #219411 by 300bhpton
Replied by 300bhpton on topic Gen 4 recovery points

Grima wrote: no sorry, what I mean is a hard fitting to chassis with screw in eye bolts for off road recovery. Remove eye bolts for on road so low risk of injury or damage to people or veh's. Most modern cars have a captive hidden recovery point behind the front bumper with a screw in eye bolt.

While it is possible for this to work and be strong enough. It would not be eligible for any form of competition by any motorsports regs in the UK and would therefore be seen as potentially unsafe.

The risk being should one of your screw in attachments fail and pull out under a recovery situation, it could easily become a deadly hazard flying through the air.

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05 Mar 2020 09:08 #219412 by 300bhpton
Replied by 300bhpton on topic Gen 4 recovery points

Lambert wrote: Interesting idea this. So for easy manufacturing use a set of available recovery points but cut off to sit just inside the bumper skin and weld an m36 coupler nut to the side and then have a 5 tonne WLL collared lifting eye to protrude for a shackle. One each side. Plenty strong.

For competitions we require high tensile nuts and bolts for all recovery points. Welding any of these will remove the tensile strength from them.

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05 Mar 2020 09:16 #219414 by Bill Portland
Replied by Bill Portland on topic Gen 4 recovery points
Seems strange that there's little regulation around this issue. Car companies spend millions trying to achieve good safety crash test results for on road use and then we go and stick big pointy-outy metally bits on just perfect for taking someone's knee caps out. Seems what's safer for off road is a liability for on road.

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05 Mar 2020 09:28 #219415 by 300bhpton
Replied by 300bhpton on topic Gen 4 recovery points

Bill Portland wrote: Seems strange that there's little regulation around this issue. Car companies spend millions trying to achieve good safety crash test results for on road use and then we go and stick big pointy-outy metally bits on just perfect for taking someone's knee caps out. Seems what's safer for off road is a liability for on road.

US spec Jeeps come with factory rated recovery points on their off road models. Note the red hooks.

Has them at the back too. Interestingly, EU/UK spec models only get the rears.

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  • CC Baxter
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05 Mar 2020 09:37 #219416 by CC Baxter
Replied by CC Baxter on topic Gen 4 recovery points
I have no experience of off-road scrutineering (although a little in motorcycle circuit racing) and am aware that safety regs on the course sometimes make little sense on the road. High tensile bolts through a mild steel (and thin) chassis member becomes acceptable because it's the only practical solution.
This is a debate that will run and run but I am of the opinion that if you don't need it don't fit it.
Chris

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