alamcculloch:
DCPC trainer told the class that C.C. should be used on driving tests ,if fitted.I dont think that it makes much sense ,but hey niether does the DCPC.
My HGV driving instructor told me to double declutch all the time, as it showed I was confidently in full control of the vehicle at all times. Suppose this works the same kind of way, if you use the CC confidently, then it demonstrates to the driving examiner that you know what you’re doing.
As soon as I hit the m’way CC on and armrests down and barring heavy traffic/eejits, it stays on until the off junction.
Spooky558:
My HGV driving instructor told me to double declutch all the time, as it showed I was confidently in full control of the vehicle at all times.
When was that? 25 years ago? Completely uneccessary to DDC with a fully functioning syncromesh g/box.
Bet he told you to use the gears to slow down too?
Driveroneuk:
Spooky558:
My HGV driving instructor told me to double declutch all the time, as it showed I was confidently in full control of the vehicle at all times.When was that? 25 years ago? Completely uneccessary to DDC with a fully functioning syncromesh g/box.
Bet he told you to use the gears to slow down too?
to get the best out of either an engine brake or retarder you still need to use the gears!
CC has it’s good and bad points. One of it’s bad points is that it’s a full ‘pedal to the metal’ when switched on below it designated set speed. So I always use gentle throttle up to the speed the cc is set at (in my case 52mph) and then switch it on. Then. I’ve still got a few mph left for when I overtake and then drop back to 52. (I run small wheels on the trailer and they are fully enclosed so a slightly lower running speed keeps brakes/wheels cooler).
I like CC, I drive a Merc which also has the old fashioned type of CC (an adjustable limiter, to lower than 90kmh). I find that the adjustable limiter is great for mixed dual / single carriageway roads. Set it to whatever speed you prefer and you can speed up, slow down however you like and not have to worry about exceeding the speed you’ve set.
On motorways, just set it at 90 and let it get on with it.
I’m not keen on the idea of a truck that brakes for me or beeps at me if I start to wander in my lane a bit. I feel that it’s a step to far in automating driving. Two things less for the driver to do, in a truck that already does all the gear changes and keeps itself more or less at cruising speed. We’re already called and some call themselves “steering wheel attendants”, mainly in jest I hope. Well in a truck that has a feet flat on the floor CC, an automatic gearbox, that brakes for you and even beeps at you to keep you in your lane, steering wheel attending is what you are doing. The only ‘skilled’ bit is reversing onto a bay.
And how much of a hardware step is it to change a beeper to a steering control mechanism? Not much, after all robots can weld up a car now, which takes more fine control than steering a truck down a motorway does.
cc the worst invention made, if you have a heart attack or black out with cc on at max speed your not going to slow down before you hit something. With cc off at least your foot will relax allowing the veh to slow a little before the bang
I use mine every oppertunity I can but then a lot of the time there is an open highway with no traffic around. Just set it at 65 mph and it takes over, it slows if I gain on a slower vehicle and speeds back up when it’s clear, I can move my legs around to stop getting stiff.
Pat Hasler:
I use mine every oppertunity I can but then a lot of the time there is an open highway with no traffic around. Just set it at 65 mph and it takes over, it slows if I gain on a slower vehicle and speeds back up when it’s clear, I can move my legs around to stop getting stiff.
Car or Irish or Dutch lorry I presume. 
schrodingers cat:
Pat Hasler:
I use mine every oppertunity I can but then a lot of the time there is an open highway with no traffic around. Just set it at 65 mph and it takes over, it slows if I gain on a slower vehicle and speeds back up when it’s clear, I can move my legs around to stop getting stiff.Car or Irish or Dutch lorry I presume.
Non of those. Perhap’s looking at Pat’s location would help?
Driveroneuk:
schrodingers cat:
Pat Hasler:
I use mine every oppertunity I can but then a lot of the time there is an open highway with no traffic around. Just set it at 65 mph and it takes over, it slows if I gain on a slower vehicle and speeds back up when it’s clear, I can move my legs around to stop getting stiff.Car or Irish or Dutch lorry I presume.
Non of those. Perhap’s looking at Pat’s location would help?
Oh yeah 
Driveroneuk:
Spooky558:
My HGV driving instructor told me to double declutch all the time, as it showed I was confidently in full control of the vehicle at all times.When was that? 25 years ago? Completely uneccessary to DDC with a fully functioning syncromesh g/box.
Bet he told you to use the gears to slow down too?
I’m not quite that old lol… 
It was 1996, so 16 years ago, and it was a Daf 2100.
The instructors logic was that say if the clutch went, if you knew how to double declutch, you wouldn’t need to get a mechanic out who’d drive it back without using the clutch.
As for slowing down, he wouldn’t let you touch the gears, he’d have you brake, and then select the suitable gear to pull away again if you were still moving, or select a suitable gear to pull away in as you’d just braked to zero.
Driveroneuk:
Spooky558:
My HGV driving instructor told me to double declutch all the time, as it showed I was confidently in full control of the vehicle at all times.When was that? 25 years ago? Completely uneccessary to DDC with a fully functioning syncromesh g/box.
Bet he told you to use the gears to slow down too?
Not quite true … My ‘Modern’ Frieghtliner has a notice on the dash telling me to use the clutch every shift, it has to be double declutch or I would never get a gear change.
urban859:
If you have a heart attack or black out with cc on at max speed your not going to slow down before you hit something.
My very first gaffer, said to me " DON’T FALL ASLEEP " with it on! Use it all the time, it saves getting caught speeding, 30s, 40s, duals and motorways! 
use the cruise when the motorway is empty, prefer the foot when there’s trafic around
alamcculloch:
DCPC trainer told the class that C.C. should be used on driving tests ,if fitted.I dont think that it makes much sense ,but hey niether does the DCPC.
My trainer told me that. I told him that I drove MANs all day long, and was doing my test in a DAF, I had enough to worry about, so we mutually agreed that I’d leave it alone
Driveroneuk:
Spooky558:
My HGV driving instructor told me to double declutch all the time, as it showed I was confidently in full control of the vehicle at all times.When was that? 25 years ago? Completely uneccessary to DDC with a fully functioning syncromesh g/box.
Bet he told you to use the gears to slow down too?
I was instructed that way 25 years ago, and now I am driving a brand new Freightliner in Canada with an 18 speed ‘crash box’, so no clutch use except for setting off and stopping, but it does have CC.
When running empty on the motorway the CC is on all the time, not so when loaded unless i know its a relatively flat section of motorway.
Another time i use it is when im coming up behind another lorry thats 0.0000001 mph slower, rather than take forever to overtake or keep going on/off the throttle i just switch on the cruise and knock a click off still im matching their speed, so much easier.
One thing i like about our newer Scanias with the opticruise is that you can keep the cruise set and change gear without having to keep resetting it, nice when your going along the M4 or similar, you only have to change gear in manual mode now and then on the hills, and you dont have to touch the throttle.
CC on dual and m ways SL on SC