Unsecured load

The ones who do actually lick windows, do so as they were told by other window lickers. That there is a coating on the inside of the window that will replace their missing brain matter....

 

Maybe it's like a bird or a dog who see's their own reflection. Kinda like that new easy off oven cleaner commercial with the two lobsters!

 

I had been wondering why I kept seeing glass cleaner at the peelot advertised as low calorie grape flavor.

 

CRE orientation video?

 

I remember flip flops being called thongs when I was a youngster, somewhere along the line in my 53 years of life, the terms and the items, well, flipped flopped.

 

I still see air under the body. Somebody get the 10ft cheater pipe out.

 

You are off on a few points.

First of all, I was talking about the conditions of the OP story, where the indirect tiedowns were only going straight across the load, not applying any forward or backwards direct force.
With such tiedowns, the only force acting forward or backwards is from friction.
So it is more than just adding up the strap ratings, because you have a low friction situation.

I agree that putting a few straps pulling to the front and rear would work, but that wasn't what we were talking about, which is straps straight across (since your sliding winch straps can basically only be used straight across)

The rules actually state that the Securement "System" must restrain at 80, 50, 50, 20% of cargo weight, and if you are using indirect tiedowns then friction is what is preventing the motion.

With normal dressed lumber and steel loads, you get enough friction from the downward force of the straps but you also have a lot of surface area and friction.

This falls under the special load, low friction category, and so needs more than just the normal downforce.

From FMCSA handbook :
"Tiedowns that pass over the cargo work by increasing the effective weight of the cargo (make the cargo seem heavier). This increases the pressure of the cargo on the deck and keeps the cargo from shifting.

Tension these tiedowns to as high an initial tension as possible.

The steeper the tiedown angle, the less shifting (ideally more than 45).

What should you use in low-friction situations?

When there is low friction between the cargo and the deck:

• Use tiedowns attached to the cargo.
• Use a means to improve the friction such as friction mats or tiedown that pass over the cargo.
• Use blocking and tiedowns."

I am also not sure what you are talking about when you say it takes more for rearward than forward.

Fmcsa:
"Forward Force = 80% of cargo weight when braking while driving straight ahead.
Rearward Force = 50% of cargo weight when accelerating, shifting gears while climbing a hill, or braking in reverse.
Sideways Force = 50% of cargo weight when turning, changing lanes, or braking while turning.
Upward Force = 20% of cargo weight when traveling over bumps in the road or cresting a hill."

So it is less for rearward than forward, which makes sense unless you have a rocket powered truck lol

And yes, if you are using indirect tiedowns, than you can halve the tiedown rating so 80% would be 40% (where does .435 come from?), etc.

Oh, and you have to use Working Load Limit, not Ultimate Breaking Strength, that is a completely different rating.

Fmcsa:
"Note: Friction mats, which are not marked by the manufacturer, are assumed to provide a resistance to horizontal movement equal to 50% of the cargo weight that is resting on the mat."

So Dot does look at friction, and will spot a low-friction situation, and look for a proper securement system to compensate for it.

 

If it can be chained I'll chain it. Then I'll throw straps on it. I try to to over secure everything. I've used 8 chains and 8 straps on loads that only reguired one or the other. When I look at a load I try to figure out how to secure it as if I would run over an IED. You get what you pay for.