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Tyre 'footprint' illustrations??

Submitted: Wednesday, Jul 02, 2008 at 11:51

Member -Signman

Any lead where I can find some good illustrations on tyre footprints when pressures are reduced??
I saw one a while back but can't seem to locate it. Have done a Google but nothing suitable.
I'm giving a seminar on offroad/sand driving to a group of Rural Fire brigades this evening...(yes- I am a VETAB instructor for OH&S accreditation).





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ThreadID: 59431 Replies: 7
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AnswerID: 313421   Submitted: Wednesday, Jul 02, 2008 at 12:49

Sir Kev & Darkie replied:

I think 4wd Monthly just did an article in the past couple of issues about tyre sizes and the respective footprint sizes.

Cheers Kev
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FollowupID: 579470   Submitted: Wednesday, Jul 02, 2008 at 12:55

Member -Signman posted:

Thanks mate...any idea how far back???...

GEEZ____ WHAT"S ALL THAT BLUE STUFF OUT THERE !!!!!!!!!!



The Ultimate Hitch-hiker
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Each morning I seize the day...
but by mid afternoon it has escaped!
Signman- NSW
VKS737 M3364 Selcall3364
Amateur Callsign: VK2EZY
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FollowupID: 579482   Submitted: Wednesday, Jul 02, 2008 at 13:36

Sir Kev & Darkie posted:

The current one I think,

It compares 31's with 33's and 35's

It has the 6 wheeler Missan on the cover

See Here for cover details

Cheers Kev
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FollowupID: 580175   Submitted: Sunday, Jul 06, 2008 at 18:29

Member - Luke (SA) posted:

Yep the current one
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AnswerID: 313422   Submitted: Wednesday, Jul 02, 2008 at 12:49

RnR replied:

Signman,

I saw the article in one of the VKS member magazines we receive. Think it was one from last year.

Regards
RnR

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Reply 2 of 7
AnswerID: 313434   Submitted: Wednesday, Jul 02, 2008 at 13:36

Member - Niss42 replied:

Try this site:
http://www.direct4wd.com.au/tours/TYRE%20PRESSURE.htm
by Joel Fleming from Tour operator, Alice Springs.
Regards,
Barry
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Reply 3 of 7
FollowupID: 579483   Submitted: Wednesday, Jul 02, 2008 at 13:43

Member -Signman posted:

That's the one I was looking for..
Thanks Barry- knew I'd seen it somewhere..
Cheers



The Ultimate Hitch-hiker
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Each morning I seize the day...
but by mid afternoon it has escaped!
Signman- NSW
VKS737 M3364 Selcall3364
Amateur Callsign: VK2EZY
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FollowupID: 579576   Submitted: Wednesday, Jul 02, 2008 at 22:12

Angler posted:

I have four scans of actual tyre prints that are quite interesting and were in a mag a few years ago.

I can send them if you email me.

Pooley
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AnswerID: 313537   Submitted: Wednesday, Jul 02, 2008 at 22:54

Member - Phil G (SA) replied:

Not illustrations, but if you want some numbers, then Willem and I compared MRF with Silent Armour on thread 46211.
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AnswerID: 313846   Submitted: Friday, Jul 04, 2008 at 15:13

Tasrat replied:

Just re read that old issue the other day. Will get details for you if still needed.
Cheers Paul
Reply 5 of 7
FollowupID: 579891   Submitted: Friday, Jul 04, 2008 at 15:22

Member -Signman posted:

Yes Paul- that would be great
Thanks

The Ultimate Hitch-hiker
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Each morning I seize the day...
but by mid afternoon it has escaped!
Signman- NSW
VKS737 M3364 Selcall3364
Amateur Callsign: VK2EZY
FollowUp 1 of 1
AnswerID: 313848   Submitted: Friday, Jul 04, 2008 at 15:28

Member - Andrew (QLD) replied:

I know it is a bit late now, Signman......Is it worthwhile using the actual vehicles and tyres they will encounter and physically setting up a testpad to show them this in the flesh? I know many a session i have conducted on various subjects, the hands-on approach works much better than some "slide on a wall" diagram.

I'm not sure of the logistics on how to do it....would require some planning to work though.

Just a (left-field) thought?

Andrew

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FollowupID: 579893   Submitted: Friday, Jul 04, 2008 at 15:43

Member -Signman posted:

Thanks for your input Andrew..
We did actually start to set up a tanker for actual scenarios..
It was a fully loaded 4x4 tanker- with 3000 litres of water..
results weren't conclusive, but I'll spend a bit more time to play with pressures/footprints..
Might start with one of the officers Prados and work up from there !!

The Ultimate Hitch-hiker
Click Image to Enlarge
Each morning I seize the day...
but by mid afternoon it has escaped!
Signman- NSW
VKS737 M3364 Selcall3364
Amateur Callsign: VK2EZY
FollowUp 1 of 2
FollowupID: 579895   Submitted: Friday, Jul 04, 2008 at 15:58

Member - Andrew (QLD) posted:

A small pad with wettish sand in it perhaps and a jacking system for the vehicle?

Whilst it would take longer to explain, it would possibly hit the spot when it comes to understanding the principles of tyre deflation.

Andrew

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serve as a warning to others!
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AnswerID: 313963   Submitted: Saturday, Jul 05, 2008 at 10:20

Tasrat replied:

Hey Signman found that old 4wd monthly. No. 59 Nov 2003.
If you would prefer I am happy to fax. Would need a number though. It compares 285/75/16 and standard 750/16 from 10 psi to 35 psi and a lot of work with a jack and an ink roller.
Hope this useful for you. I'm at work all day today so if you on the air we can get it done.
Cheers Paul
Reply 7 of 7

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