AndrewG:
As others have mentioned, as well as Kinetic/G’s being the cause
As it stands Kinetic energy isn’t taken into account at all regarding load security.IE cancelling out G force created by the relative speed of the load relative to the speed of the ruck with an opposing force isn’t the same thing as transmitting the kinetic energy contained in the load to the brakes to be turned into heat.Which is why truck bodies and axles aren’t secured to the chassis with ropes or straps let alone plastic shrink wrap.
I wasnt refering to securing a load, my post was reference types of load.
Thanks for the info re shrink wrap not being used to secure axles, all the axles ive ever lifted up using shrink wrap when i should have used something better like maybe, a chain…
Im sure we had a nother fred some time ago where kinetic energy was introduced into a load securing topic. It went off into discussions about armour piercing shells! Could be wrong, but I think CarryFast and Franglais were both involved? At least one of them probably wont be getting too involved this time.
Carryfast:
As it stands Kinetic energy isn’t taken into account at all regarding load security.IE cancelling out G force created by the relative speed of the load relative to the speed of the ruck with an opposing force isn’t the same thing as transmitting the kinetic energy contained in the load to the brakes to be turned into heat.Which is why truck bodies and axles aren’t secured to the chassis with ropes or straps let alone plastic shrink wrap.
Thanks for the info re shrink wrap not being used to secure axles, all the axles ive ever lifted up using shrink wrap when i should have used something better like maybe, a chain…
I was referring to attaching the axles to the chassis in such a way that they stay attached when they have to transmit the kinetic energy of 44t travelling at whatever speed to the brakes to be converted into heat for example. On that note I still think that something is being missed in that regard in the case of load security and possibly explains what’s going on in the case of some types of catastrophic load movement such as that described.
Franglais:
I`m sure we had a nother fred some time ago where kinetic energy was introduced into a load securing topic. It went off into discussions about armour piercing shells!
To be fair it’s a good analogy of the types of forces involved in transferring the energy of up to around 1-25t moving at up to 55 mph to the brakes to be turned into heat without it tearing or smashing through the restraints holding it.
Franglais:
I`m sure we had a nother fred some time ago where kinetic energy was introduced into a load securing topic. It went off into discussions about armour piercing shells!
To be fair it’s a good analogy of the types of forces involved in transferring the energy of up to around 1-25t moving at up to 55 mph to the brakes to be turned into heat without it tearing or smashing through the restraints holding it.
I did enjoy that thread, and thank you for it, but that was then!
Mind you, ferry 2moro…
Some really fantastic and enlightening stories there - thanks everyone.
slowlane - what’s panic braking for a motorway bridge? Didn’t get that. The point you make about using one’s intuition really feels right. I think that’s it. I can gather info and opinions, but really at the end of the day it’s my own judgement and to be mindful with my driving. I use bars or straps for any load apart from these soft drink pallets which just feel stable but maybe I will think again for double stacks.
Rob K, your steel story is absolutely terrifying!
bogie, skelly, kinch - some trucker jargon there I don’t know - can anyone enlighten me?
wanderingstar:
Some really fantastic and enlightening stories there - thanks everyone.
slowlane - what’s panic braking for a motorway bridge? Didn’t get that. The point you make about using one’s intuition really feels right. I think that’s it. I can gather info and opinions, but really at the end of the day it’s my own judgement and to be mindful with my driving. I use bars or straps for any load apart from these soft drink pallets which just feel stable but maybe I will think again for double stacks.
Rob K, your steel story is absolutely terrifying!
bogie, skelly, kinch - some trucker jargon there I don’t know - can anyone enlighten me?
My DAF would occasionally get confused and the emergency braking system would think I was about to crash into a bridge, and react. It’s the AEBS system that drivers ploughing through the back of stationary traffic have brought in for the rest of us.
It’s supposed to warn you before it takes action, and if you touch a pedal to show you’re in control, you override it. However, in the case I mentioned, I had forgotten to switch it off and then when it beeped at me, I didn’t respond fast enough to touch a pedal - so it jammed the brakes on. I would only have lost a few mph before I pressed the accelerator, but it was a really harsh jolt.
I was very unsure about load security when I started driving, so I can empathise with how you’re feeling. You will pick it up though, as you gain experience.
wanderingstar:
bogie, skelly, kinch - some trucker jargon there I don’t know - can anyone enlighten me?
A bogie is the sub assembly of axles on a trailer either twin or tri axle, a kinch, a loop in a knot and skelly, skeletal trailer used for carrying containers, sliding skelly to allow a 20ft box in the centre of a 40ft trailer…
wanderingstar:
bogie, skelly, kinch - some trucker jargon there I don’t know - can anyone enlighten me?
A bogie is the sub assembly of axles on a trailer either twin or tri axle, a kinch, a loop in a knot and skelly, skeletal trailer used for carrying containers, sliding skelly to allow a 20ft box in the centre of a 40ft trailer…
What you in the UK call a double drive is known over here as a bogie drive.
wanderingstar:
bogie, skelly, kinch - some trucker jargon there I don’t know - can anyone enlighten me?
A bogie is the sub assembly of axles on a trailer either twin or tri axle, a kinch, a loop in a knot and skelly, skeletal trailer used for carrying containers, sliding skelly to allow a 20ft box in the centre of a 40ft trailer…
What you in the UK call a double drive is known over here as a bogie drive.
The full UK title is ‘double-drive bogie’ so bogie drive seems a natural contraction.
@ ‘Wanderingstar’: you can add PSK, which stands for platform-skelly, which is a flatbed trailer (or cut down tilt) with twist-locks set into the bed . Robert
A bogie is the sub assembly of axles on a trailer either twin or tri axle, a kinch, a loop in a knot and skelly, skeletal trailer used for carrying containers, sliding skelly to allow a 20ft box in the centre of a 40ft trailer…
[/quote]
A kinch is what is known in England as a “Dolly Knot”
Up here in the wild west, we’re rock hard, and a word like Dolly is just not in our vocabulary.
What was that pretty wee sheep called again?
From today’s experience…Scania’s Emergency Braking system…thanks to an utter cretin who left the M6 at 17 only to change his mind and attempt to rejoin at 10 mph in front of me…with no warning.
Pickled box section crashing into the headboard is a real brown trouser moment…
From today’s experience…Scania’s Emergency Braking system…thanks to an utter cretin who left the M6 at 17 only to change his mind and attempt to rejoin at 10 mph in front of me…with no warning.
Pickled box section crashing into the headboard is a real brown trouser moment…
Wait till you have the ■■■■■■■■■■■■■ slam on whilst going round a bend around parked cars as it thinks your going to hit them.
Dangerous unless you remember to switch off in towns !
It’s one of those ‘safety features ‘ that can be more a liability that what it’s supposed to be saving you from!
Old John:
A bogie is the sub assembly of axles on a trailer either twin or tri axle, a kinch, a loop in a knot and skelly, skeletal trailer used for carrying containers, sliding skelly to allow a 20ft box in the centre of a 40ft trailer…
A kinch is what is known in England as a “Dolly Knot”
Up here in the wild west, we’re rock hard, and a word like Dolly is just not in our vocabulary.
What was that pretty wee sheep called again?
wanderingstar:
I sometimes carry soft drinks. Recently I shot a load of them and it was rejected and had to be repacked. On the way I had had one instance of harsh braking when a car cut in front of me but I was chatting to a driver after the incident and he said short, harsh braking is not as likely to shift a load as slowing quickly from speed on an downward incline, and in fact on that same trip I’d come off a motorway slip road that went down to a roundabout and braked much later than usual. Which do you think is more likely to cause a shifted load in general? A short sharp emergency brake, or pressure building over a number of seconds on a longer sweep like a downhill deceleration lane coming to a junction. I’ve always been dead careful with cornering to prevent sideways shifting but hadn’t really thought about forward shifting until this. I once had to emergency brake on one of the few times I carried steel
and heard the bars hit the headboard of the flatbed. I only heard the horror stories about shifting steel afterwards.
Roblem with Coca cola and most still water that if they lost correctly pallet to pallet but between lost will some gap.
involved this time. 
On that note I still think that something is being missed in that regard in the case of load security and possibly explains what’s going on in the case of some types of catastrophic load movement such as that described.
