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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!spool.mu.edu!agate!dog.ee.lbl.gov!news!nosc!halibut.nosc.mil!koziarz
- From: koziarz@halibut.nosc.mil (Walter A. Koziarz)
- Subject: Re: what does 4x4 mean?
- Message-ID: <1992Dec18.185118.452@nosc.mil>
- Sender: usenet@nosc.mil (Network News)
- Organization: Naval Ocean Systems Center, San Diego
- References: <1992Dec17.4171.23880@dosgate>
- Distribution: rec
- Date: Fri, 18 Dec 1992 18:51:18 GMT
- Lines: 23
-
- In article <1992Dec17.4171.23880@dosgate> "mike knox" <mike.knox@canrem.com> writes:
- >Hi:
-
- >I hope this is not a stupid question, but I have been wondering exactly
- >where the term 4x4 (four by four) came from.
-
- not a stupid question at all...
-
- '4x4' refers, as you mentioned, to general 4 wheel drive vehicles, but the
- whole story goes back a way... and I'll spare the gritty details... 4x4 is one
- of a number of possible designations (these are of military origin) for
- indicating total versus driven wheels. 'wheels' in this context *does NOT*
- refer to 'tires' or 'wheel-rims', it refers to 'hubs' (in the 'world of
- running-gear' a tractor with ten tires mounted as two steering tires (one per
- side) and tandem rear axles, powered, mounting duals at each hub would
- correctly be identified as 6x4 -- 6 'wheels', 4 of them powered).
-
- so -- 'A'x'B' is interpreted as: 'A'-total-wheels with 'B'-wheels-powered.
-
- and as alluded to above, the designation has military origins.
-
- Walt K.
-
-