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Skippy
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Joined: 24/06/2003 00:22:12
Posts: 2946
Location: Escaped to the Antipodies! 36.83°S 174.75°E
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 Posted: Sat May 26, 2007 11:47 pm Post subject: |
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| GPS_fan wrote: | | a lot of people don't realise that ABS often increases stopping distances |
That's not true, locking up your wheels will increase your stopping distance on pretty much any surface with the possible exception of gravel and snow.
| DennisN wrote: | | 2. "baby on board" (and variations) signs. I heard the other day that emergency services personnel really hate these - they were originally intended to indicate to ES (in the circumstances of unconscious or dead driver) that there is a baby inside which they have to rescue - even smash their way in to get there fast. Nowadays it's just some prat who thinks it's cute to have a sign saying "princess on board"! |
I think they are actually there to say "Driver is distracted by an annoying child, they probably had a crap night's sleep and they really aren't thinking about what they are doing". Treat these signs pretty much the same as for "L" plates....
| mostdom wrote: | | From the IAM the veiw is you shouldn't change down through your gears during breaking. |
Some of the stuff the IAM teach is OK, but a lot of it is a load of nonsense. Sure, if you ram your gearbox into second at 50 MPH, you are going to lock up the wheels, wear out your drive train and possibly damage something. But imagine you are in 5th gear and slowing as you approach a roundabout - should you not change down? What about motorcyclists who have a sequential gearbox where you can't change from 6th gear into 2nd?
And don't get me started on that nonsense they teach about not crossing your arms when you turn the steering wheel. 
| 999tommo wrote: | | Oh yes, and brake pads are far easier and cheaper to replace than clutch plates !! |
So how come heavy trucks favour using engine braking (ie, exhaust brakes) when possible ? 
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Border_Collie
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Joined: Feb 01, 2006
Posts: 2543
Location: Rainham, Kent. England.
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| Posted: Sat May 26, 2007 11:48 pm Post subject: |
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| Quote: | | There's the problem. An advanced driver would never be in 5th at 45mph. |
Be fair 999tommo you did say | Quote: | | When you enter a built up area (30mph) from a national speed limit area, try to pick a point, whilst you are doing 60 |
And I did say I would have to change down to 4th.
| Quote: | | In fact on our courses (and I know this is not the real world) we would be well over 100mph before we got into 5th. |
My trusty diesel would get nowhere near that speed in 4th and not much more in 5th according to the spec. But it cruises nice on the Motorways/Autorouts at 70 in GB and 80 (130kph) in France and that does me. :D
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Formerly known as Lost_Property
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Skippy
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Joined: 24/06/2003 00:22:12
Posts: 2946
Location: Escaped to the Antipodies! 36.83°S 174.75°E
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| Posted: Sat May 26, 2007 11:56 pm Post subject: |
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Just reading the topic of this thread: "21% saying their father drove too fast."
By the Daily Mail's logic, that would mean that 79% of children say their father didn't drive fast enough.  
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Border_Collie
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Joined: Feb 01, 2006
Posts: 2543
Location: Rainham, Kent. England.
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| Posted: Sun May 27, 2007 12:05 am Post subject: |
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| Quote: | | And don't get me started on that nonsense they teach about not crossing your arms when you turn the steering wheel. |
I think that's a left over from before power steering when the gearing was so low, can't remember how many turns lock to lock, your arms would have ended up in a reef knot had you not 'fed' the wheel. With power steering it's unusual to have to use more than about half a turn for most situations.
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999tommo
Frequent Visitor
Joined: Feb 07, 2006
Posts: 616
Location: Midlothian
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| Posted: Sun May 27, 2007 12:12 am Post subject: |
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| Skippy wrote: | | GPS_fan wrote: | | a lot of people don't realise that ABS often increases stopping distances |
That's not true, locking up your wheels will increase your stopping distance on pretty much any surface with the possible exception of gravel and snow. |
Actually it is true. ABS is not designed to stop you quicker. It is designed to give you steering control whilst braking.
If you plant your foot on the brake and try to steer without ABS, it won't turn at all. If you do the same with ABS, you can steer around something with your foot firmly planted.
If your brake pressure is at it's optimum pressure, you will stop quicker without ABS than you will with it. After all ABS is effectively putting your brakes on and off repeatedly.
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Regularly absent, but still here in spirit ! |
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alix776
Pocket GPS Moderator
Joined: 03/05/2003 14:45:49
Posts: 3999
Location: leyland lancs ENGLAND
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| Posted: Sun May 27, 2007 1:25 am Post subject: |
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as heavy user of abs it does stop you quicker the trick that most people forget is that you have to keep your foot planted to the floor untill the veihcle stops
indipentdant test have proved in both wet and dry conditions the car with abs stopped (i think but dont quote me on the exact figure) up to 30% quicker
obviously its a driver aid and forward planning should avoid unecessary heavy breaking.
unfortunatly some peple seam to think 44tonnes can stop as fast as there cars but i think the sooner GPS linked speed limiters come in for all veihcles then this will help most situations ie drive to fast in 30 40 mph areas round schools etc
one down side of this would be driver fatuige, as yet there has not been any studies into he issues surrounding this. and i see this as main factor in rolling out speed limiters gps speed linked or not. also the problem of tunnels and urban canyons would need addressing. though this worl most likely be linked to a road pricing system 
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Border_Collie
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Joined: Feb 01, 2006
Posts: 2543
Location: Rainham, Kent. England.
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| Posted: Sun May 27, 2007 1:37 am Post subject: |
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| Quote: | | one down side of this would be driver fatuige, as yet there has not been any studies into he issues surrounding this. |
I seem to recall a programme on TV (Top Gear?) where drivers were put in a simlator at different levels of tiredness and their eye movements monitored by a device at the top of the screen, evidently the equipment did detect when the drivers were tired/stressed/fatigued.
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DennisN
Tired Old Man
Joined: Feb 27, 2006
Posts: 14889
Location: Keynsham
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| Posted: Sun May 27, 2007 8:54 am Post subject: |
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Here's another couple for you.
I always put the clutch down when I use the starter - less weight for the starter to push.
I always reverse park - less wear on a hot engine and other bits.
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Dennis
If it tastes good - it's fattening.
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alix776
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Joined: 03/05/2003 14:45:49
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Location: leyland lancs ENGLAND
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| Posted: Sun May 27, 2007 1:44 pm Post subject: |
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sorry post_property what i meant to say was official indipendant or scientific reserch
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Oh the joys of being a courier.
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Privateer
Pocket GPS Moderator
Joined: 30/12/2002 17:36:20
Posts: 4912
Location: Oxfordshire, England, UK
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| Posted: Sun May 27, 2007 2:13 pm Post subject: |
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| DennisN wrote: | Here's another couple for you.
I always put the clutch down when I use the starter - less weight for the starter to push. |
Me too, especially as I drive a 4x4.
| DennisN wrote: | | I always reverse park - less wear on a hot engine and other bits. |
I don't do it so much for the engine and other bits, I want to see that when I drive out I don't hit anything or run over any children. 8O
I have seen two cars, in a super market car park, (opposite each other) both reverse out together and hit each other! Certainly not a case of "Mirror, Signal, Manoeuvre"!
Regards,
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alix776
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Joined: 03/05/2003 14:45:49
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Location: leyland lancs ENGLAND
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| Posted: Sun May 27, 2007 2:28 pm Post subject: |
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robert are yopu sure that was a comedy skectch show on tv
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Oh the joys of being a courier.
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mostdom
Pocket GPS Moderator
Joined: Jul 10, 2006
Posts: 1964
Location: Surrey, UK.
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| Posted: Sun May 27, 2007 6:34 pm Post subject: |
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| alix776 wrote: | | ...as heavy user of abs it does stop you quicker the trick that most people forget is that you have to keep your foot planted to the floor untill the veihcle stops... |
This may well be true but it has been proved that when breaking there is a sweet spot where just your foot pressure is more efficient than with ABS assist.
On the other hand how many of us would remember that in a moment of blind pannic, most people would just stab the breaks and hope for the best. 
Any one concerned with this may wish to try an Emergency Reaction Training Course. It's worth it!
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Dom
HERE LIES PND May it rest in peace.
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GJF
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Joined: Feb 08, 2007
Posts: 894
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| Posted: Sun May 27, 2007 8:35 pm Post subject: |
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mostdom wrote:
| Quote: | | Any one concerned with this may wish to try an Emergency Reaction Training Course. It's worth it! |
What & where is this course, is it part of the IAM courses you are on?
I have always fancied going on one of those specialist training courses, with high speed tatical driving, skid training and high speed reversing etc, but I've now probally lost my chance as I'm too old.
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mostdom
Pocket GPS Moderator
Joined: Jul 10, 2006
Posts: 1964
Location: Surrey, UK.
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| Posted: Sun May 27, 2007 10:49 pm Post subject: |
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| GJF wrote: | | What & where is this course, is it part of the IAM courses you are on? |
IAM do do these courses but only periodically. I am yet to try one of their courses but I have been on the Skid and ERT course with a company called Drive and Survive who used to run out of the TRL in Crothorne. On their web site look at improving control skills on the products menu and then Off-road Incident Avoidance Coaching.
These are the sorts of products you are looking for as I'm sure if you look hard enough you'll find one close to wherever your neck of the woods may be.
Skid pan is soo much fun! Once you have done the serious stuff just let it rip to see what can really happen.
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Dom
HERE LIES PND May it rest in peace.
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GPS_fan
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Joined: Jan 04, 2007
Posts: 2789
Location: Hampshire, UK
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| Posted: Mon May 28, 2007 11:13 pm Post subject: |
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Over the years, I've seen several different companies operating out of TRL (Crowthorne) - but I wouldn't like to say whether these are any better or worse than other companies operating out of places such as racing circuits.
Does anybody have first-hand experience of courses and/or companies running them?
Or are there any recommendations from IAM?
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