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- Path: sparky!uunet!cs.utexas.edu!swrinde!network.ucsd.edu!munnari.oz.au!uniwa!DIALix!tillage!gil
- From: gil@tillage.DIALix.oz.au (Gil Hardwick)
- Newsgroups: misc.rural
- Subject: Tow chains or slings?
- Distribution: world
- Message-ID: <725166229snx@tillage.DIALix.oz.au>
- References: <Dec21.162630.80677@yuma.ACNS.ColoState.EDU>
- Date: Thu, 24 Dec 92 03:03:49 GMT
- Organization: STAFF STRATEGIES - Anthropologists & Training Agents
- Lines: 30
-
-
- In article <Dec21.162630.80677@yuma.ACNS.ColoState.EDU> johnc@yuma.ACNS.ColoState.EDU writes:
-
- > Straps must be cared for more rigorously than chains and they must be
- > replaced regularly. Using a frayed or inadequate strap will cause grief
- > similar to that caused by using a chain with a weak link. Tensile strength
- > of chains is less than their weight might suggest. Jerking a chain is hard
- > on both vehicles and the chain, so the chain is often ineffective unless
- > traction is excellent, and it may cause vehicle damage even if it doesn't
- > break. Transient loads are very high.
-
- It seems nobody has yet discussed the desirability of digging a set of
- tracks for the bogged wheels to follow, and jacking the vehicle up to
- place some sort lining under the wheels (ie, leafy branches, sticks,
- grass bundles) allowing them to get traction to start with.
-
- The whole strategy is to get all *eight* wheels working together such
- that "transient loads" are managed within a total drive system powered
- by *both* engines available, with the chain or strap merely serving as
- the link between them.
-
- There is no point *whatever* relying on either a chain or a strap under
- the load levels unduced by one vehicle trying to yank another vehicle out
- of a bog. What identifies "the overenthusiastic hero" is no brains . . .
-
- --
- Gil Hardwick Internet: gil@tillage.DIALix.oz.au
- Consulting Ethnologist Fidonet: 3:690/660.6
- PERTH, Western Australia Voice: (+61 9) 399 2401
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