Interesting viewpoint

Didn't say it does, just suggested it should set the alert status from
green to amber at least.

Who said anything about 15 mph? You just plucked it out of the air.
Why the sudden jump from 15 to 50?

Who said anything about 10 mph? You just plucked it out of the air.

Who said anything about 10 mph? You just plucked it out of the air.

You also seem to have decided to do the commute on untreated back-roads
for no apparent reason. Why?

Pete.

 

heh. The Jeep has a digital external temp. display - if it's lower
than 2C I just stick it into permanent 4x4 and drive as per any other
day.

 

A little bit of air frost doesn't take five minutes to clean off a
windscreen. If you don't know that, you've never /seen/ a car.

So you don't drive at a speed at which you could kill people. If he'd lost
control at 20mph, there would be some bent bikes and possibly some
bruises.

You don't commute from Swindon to Birmingham on icy roads. To do so in a
reasonable commuting time would be criminal.

--
(Simon Brooke) http://www.jasmine.org.uk/~simon/

;; Perl ... is the Brittney Spears of programming - easily accessible
;; but, in the final analysis, empty of any significant thought
;; Frank Adrian on Slashdot, 21st July 2003

 

Of course; I was referring to the Volvo which is full-time[1] 4x4
anyway.

[1] Well, on-demand really, since it's a semi-viscous coupling type of
arrangement, which puts 100% of the drive on the front except where
the rears are starting to turn more slowly (i.e. the fronts are
starting to spin). Allegedly it's a very basic 4x4 system, but it
seems to work just fine.

--
_______
..'_/_|_\_'. Ace (brucedotrogers a.t rochedotcom)
\`\ | /`/ DS#8
`\\ | //' BOTAFOT#3, SbS#2, UKRMMA#13, DFV#8, SKA#2, IBB#10
`\|/`
`

 

The Jeep has several drive modes, but only recommends 2wd or permanent
4wd for road use - part-time 4WD is for "loose surfaces only". I've no
idea why - Krusty probably does, mind.

That said, I normally leave the Jeep in 2wd, 'cos it's more
entertaining sliding the back end out in the wet.

 

Yep. Apologies.

 

See other posting....

 

Simon Brooke () gurgled happily, sounding much like
they were saying :

Crap.

You'd have everybody doing 10mph everywhere for three months of the year.

 

Oh, do **** off.

 

Simon Brooke () gurgled happily, sounding much like
they were saying :

Oh, ffs...

 

So what speed would you consider to be safe in 'amber' conditions? What
would make you revert from amber to green?

OK you pick a speed that's guaranteed not to result in a loss of
control should you suddenly hit a patch of black ice. 15mph is too fast
if anything.

Nice job of avoiding the question.

Who said they're untreated? The whole point is unexpected patches of
ice *do* happen on roads that are completely free of ice for many, many
miles either side of that patch. I'm not going to drive/ride at a speed
that's so slow it guarantees I'll maintain full control on a 10 yard
patch of ice, when the previous n miles has been totally ice free. I
very much doubt anyone else would either, including you.


--
Krusty
www.MuddyStuff.co.uk
Off-Road Classifieds

'02 MV Senna '03 Tigtona 955i '96 Tiger '79 Fantic Hiro 250

 

What complete & utter rubbish.

--
Krusty
www.MuddyStuff.co.uk
Off-Road Classifieds

'02 MV Senna '03 Tigtona 955i '96 Tiger '79 Fantic Hiro 250

 

That depends how many diffs it's got.

If it's got a central diff, the so-called "part-time" 4WD probably locks
it, whereas the permanent 4WD doesn't.

 

Did I say anything about 'a little bit of air frost'?

So you'd drive at 20mph all day because you had to spend 5 minutes
scraping ice off in the morning, even though you'd seen no sign of ice
on the roads? Congratulations, you've just lost all credibility. Plus
of course squashing someone against a wall at 20mph would probably kill
them - giving them a glancing blow at 50mph probably wouldn't.

No. I commuted from Swindon to Birmingham on treated roads that
occasionally had the odd patch of ice here & there. It boggles me that
you fail to understand that this is a regular scenario.

--
Krusty
www.MuddyStuff.co.uk
Off-Road Classifieds

'02 MV Senna '03 Tigtona 955i '96 Tiger '79 Fantic Hiro 250

 

It locks the centre diff, so the wheels have to be able to turn at
different speeds or something goes bang.

AOL

--
Krusty
www.MuddyStuff.co.uk
Off-Road Classifieds

'02 MV Senna '03 Tigtona 955i '96 Tiger '79 Fantic Hiro 250

 

I use that symbol as an indication of when to apply the handbrake and
give it more gas for some drifting fun.

 

I'm not dumb enough to think it's possible to have an objective
catch-all answer to that question. But on an untreated road on a cold
winter day I don't think I'd ever come off amber.

Indeed. But that doesn't mean it's reasonable to drive as if it's okay
to have one.

No, you pick a compromise speed so you're less likely to have such a
spectacular game of impromptu car-billiards if something does go wrong.

By pointing out it was such a dumb, straw question there was nothing to
answer.

Pete.

 

Nobody's disputing that. However it's superceeded as an indicator by
the road conditions you encounter as you progress on your journey.

--
Krusty
www.MuddyStuff.co.uk
Off-Road Classifieds

'02 MV Senna '03 Tigtona 955i '96 Tiger '79 Fantic Hiro 250

 

They work between left and right side, but on vehicles with selectable
4wd like darsy's jeep, there is no 'diff' between front and rear.

On mine, the whole front-rear transmission split is through a
semi-viscous coupling, which is essentially a hydraulic diff, so it
can cope quite happily with slightly different front and rear wheel
speeds, as can any modern road-based vehicle with 'permanent' 4wd.

--
_______
..'_/_|_\_'. Ace (brucedotrogers a.t rochedotcom)
\`\ | /`/ DS#8
`\\ | //' BOTAFOT#3, SbS#2, UKRMMA#13, DFV#8, SKA#2, IBB#10
`\|/`
`

 

Exactly - you pick a speed that seems safe for the given road
conditions. That speed can instantly become dangerous if the conditions
suddenly change.

It also doesn't mean it's reasonable to drive as if you'll have one
every 50 yards.

Which is where the luck comes into it. Your chosen speed could be
30mph, which is plenty fast enough to kill people if you suddenly lose
control.

The whole point of your argument seems to be that if there's ice on the
windscreen there's likely to be ice on the road, so asking how long
you'd drive on ice-free roads before deciding otherwise is a perfectly
valid question.


--
Krusty
www.MuddyStuff.co.uk
Off-Road Classifieds

'02 MV Senna '03 Tigtona 955i '96 Tiger '79 Fantic Hiro 250