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Date:      Mon, 28 Jan 2002 14:24:39 -0700
From:      Chad David <davidc@acns.ab.ca>
To:        Nate Williams <nate@yogotech.com>
Cc:        "M. Warner Losh" <imp@village.org>, chat@FreeBSD.ORG
Subject:   Re: Transmissions :) Was: Firewall config non-intuitiveness
Message-ID:  <20020128142439.I66369@colnta.acns.ab.ca>
In-Reply-To: <15445.48220.670641.705228@caddis.yogotech.com>; from nate@yogotech.com on Mon, Jan 28, 2002 at 02:02:20PM -0700
References:  <1617.216.153.202.59.1012240332.squirrel@www1.27in.tv> <20020128192930.GA86720@student.uu.se> <15445.44102.288461.155113@caddis.yogotech.com> <20020128.131414.49257581.imp@village.org> <15445.45720.514136.887062@caddis.yogotech.com> <20020128135603.G66369@colnta.acns.ab.ca> <15445.48220.670641.705228@caddis.yogotech.com>

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On Mon, Jan 28, 2002 at 02:02:20PM -0700, Nate Williams wrote:
> [ This is getting way off topic, so I've moved this to -chat ]
> 
> > > > : If I enable the clutch in my car, my car moves (assuming it's in gear).
> > > > : If I disable it, the power is no longer going to the drive wheels.
> > > > 
> > > > That's not quite right, but it is a good analogy.  If you disable your
> > > > clutch, then you are going to have to shift without it and deal with
> > > > putting it into gear at stops.
> > > 
> > > Unfortunately, you can't do it w/out a clutch.  (At least, not without
> > > tearing your clutch/transmission to bits).
> > 
> > No true :).  While at a stop a clutch is a good idea, you can avoid
> > ware on a number of parts if you learn to shift without clutch while
> > moving.
> 
> Actually, the wear you save on the clutch (which is designed for this)
> will be translated to the gears in the transmission.  Very few (!!)
> people are capable of shifting w/out a clutch and *NOT* doing damage to
> the gears.

I actually know a lot of people who are capable, but growing up in a
family of farmers and mechanics, and spending most of my recreational
time at the race track I may not be "normal".

> 
> Hence the reason for a clutch.

Agreed :).

> 
> > On smaller four and five speed transmissions (or bikes)this is
> > actually quite easy... on 3 ton grain trucks and tractors its a little
> > more tricky.
> 
> Actually, on grain trucks it's *easier*.  (Speaking with 15 years of
> experience driving them. :) :) :)
> 
> On the smaller cars, the synchro-mesh setup on the gears makes it *much*
> harder to do it cleanly, while on big grain trucks and bikes, it's
> easier since they don't add such things since they are mostly
> un-necessary.  (And, not using a clutch is more common.)

Now you bring synchro-mesh into the picture :).  I didn't mean that
you couldn't do it in a truck, its just that you have to be careful.

We had an old 3 ton where reverse was up and right (where third should be
(3rd was right between 1st and reverse)).  I used to always go 1st...
2nd... hard stop!  Newer machines just don't let you have fun like that.

-- 
Chad David        davidc@acns.ab.ca
www.FreeBSD.org   davidc@freebsd.org
ACNS Inc.         Calgary, Alberta Canada
Fourthly, The constant breeders, beside the gain of eight shillings
sterling per annum by the sale of their children, will be rid of the
charge of maintaining them after the first year. - Johnathan Swift

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