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Lowering tire pressure works wonders (4:47 video)

macmarc

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Hey guys,

this is my first thread here :)

I would like to show you this video which shows how simply deflating the tires of a truck can help driving through snow (as shown in the video), sand (desert), mud etc.
The video was made in Austria and I think it is remarkable how the truck doesn't need any snow chains whatsoever: https://www.youtube.com/watch?v=HZFg2omAako

What do you guys think? I guess every army in the world faces problems in difficult terrain. Any experiences within Canada?

Looking forward to hear about your thoughts!
 

Eye In The Sky

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We did this with AVGPs, I remember particularly the Bison we would drop the TPs from 42(?)psi for highway/hardstand to 25psi for cross country.  The lower TP with the extra set of wheels (compared to Cougar/Grizz) and a good driver, it would really make a difference.  Loved driving that piece of kit.

 

George Wallace

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Eye In The Sky said:
We did this with AVGPs, I remember particularly the Bison we would drop the TPs from 42(?)psi for highway/hardstand to 25psi for cross country.  The lower TP with the extra set of wheels (compared to Cougar/Grizz) and a good driver, it would really make a difference.  Loved driving that piece of kit.

See what happens when you read the manuals....... [:D
 

Eye In The Sky

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;D

I didn't mention how most dvr's moaned when it was time to bump the TP back up for a roadmove...hard work, holding that airhose in place!  >:D
 

macmarc

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So, you could deflate the tires but when you hit the road again there was no possibility of "re-inflating" them again?
 

Eye In The Sky

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It was done manually;  we would have to connect an air hose to the pressure tank and pump up 8 rather large tires to the higher PSI.  IIRC it would take about 20mins or so.  Was just something extra to do on first/half parades. 
 

macmarc

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I see. The good thing with the system in the video is, that they replace the standard valves with quick coupling valves, which have a much larger cross section. Hence, all tires can be inflated at the same time with roughly 800l of air a minute. I guess that would be the next step with regards to efficiency  :)
 
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