Tie Down Straps with loops for tractor

[barts]

A 3,000 lb car traveling at 70 mph is producing 491,810 ftlb of energy

It has that much kinetic energy with respect to stationary objects due to the engine adding it as the car accelerated.

Note that nylon straps can absorb large amounts of energy by stretching; this is why sailors on boats will use often use chain and heavy nylon rope as ground tackle; the nylon absorbs some of the shock of waves lifting the boat instead of heavy jarring impacts which can break things.

If I had to arrest a heavy falling weight, I'd much rather do that with a long nylon rope or strap than a chain.

There are no absolutes here; so long as the materials used are sufficiently strong, many approaches are suitable. Combing straps with chain or cable to prevent damage to paint and finish is common when securing vehicles on tow vehicles.

- Bart

 

[4570Man]

From Quora

“how much energy is produced from a 3,000 pound car traveling at 70 mph?”.
E = 0.5mv^2
pounds= lb
m= mass
v= velocity
m= weight divided by acceleration due to gravity, which I will round off to 32.15 f/s
f/s^2= feet per second squared
70 mph= 102.67 f/s rounded
E= 0.5(3,000 lb/ 32.15 f/s^2)(102.67 f/s)^2 = 491,810 foot pounds of energy, rounded.

A 3,000 lb car traveling at 70 mph is producing 491,810 ftlb of energy

I'll stick with chains.

Are your chains rated for 491,810 pounds? Didn’t think so. The biggest problem with straps is cutting them. If you can manage not to do that they’re perfectly fine.

 

[ROUSTABOUT]

I know I was down in Florida cleaning up after a hurricane. The dump was a mess and co got stuck trying to get in. I had a brand new strap and tied it to a dozer. Snapped like a rubber band. Stopped by a truck we parked on homestead AFB and got two gold chains. I got pulled out and I pulled many others out with nothing breaking. Oilfield uses chain around here. The strap question was answered for me. No it didn't break on a sharp edge, it popped in the middle.

 

[bnold]

Typical forum ‘absolutes’ - Always - Never

I use chains when the load dictates.
I use strap when the load dictates.


Each have their + and -

 

[Gord Baker]

4" is the only acceptable by DOT legal straps there are. My issue with straps on tractors is, too many sharp edges to cut them.

Use softeners cut from old belting/tires etc

 

[gstrom99]

Depends on what you're carrying. These straps would work fine, except for a 'dozer or skidloader. https://www.tractorsupply.com/tsc/p...27-ft-yellow-ratchet-with-18-in-chain-3333-lb

Never shorten one. I've been tempted to do that lots of times, but once you do, it'll be too short immediately...

 

[jmc]

Are your chains rated for 491,810 pounds? Didn’t think so. The biggest problem with straps is cutting them. If you can manage not to do that they’re perfectly fine.

"Pounds"and "foot-pounds" aren't the same.

 

[Bill Guenthner]

Typical forum ‘absolutes’ - Always - Never

I use chains when the load dictates.
I use strap when the load dictates.


Each have their + and -

A grade 70 chain is absolutely stronger than a strap. I’ve never seen a grade 70 chain be cut by a load. Can you get by with straps hauling a tractor? Sure, probably most of the time. Am I ever going to? No. I have chains and binders and I’m crazy averse to being killed or being sued or charged for negligently killing someone else.

 

[oldballs]

Going several hundered miles thru the Rocky Mountains, I'd drive a diesel and use chains to tie down my CUT. But going to Grandma's house (nearby) to mow her grass, I use straps with towels at the rub points in my gasser F-250.
Cheers,
Mike

 

[ROUSTABOUT]

I've seen a lot of folks just throw a strap through over the transmission and haul it like that. Not me. I tie things down. Got me some pawn shop special ratchet chain binders. I have been on a trac hoe, with the tracks 45° pulling a loaded concrete truck back to a pour. Bring the best strap you got and try that. Never broke a chain.