TIE DOWN YOUR LOAD !!!

[jimmysisson]

Sounds like the guy's lifetime protein intake went to the biceps, not the neurons... 100 lbs lighter - tee hee.
Jim

 

[flyerdan]

I've got a .30 cal ammo can with ratchet straps and ropes that lives behind the seat in the pickup all the time to secure whatever might wind up in the bed. Not only does it make sense from a responsibility standpoint in keeping things from falling out, I just don't like things sliding or rolling around.
As for boats; my dad had a 23' Uniflite, really heavy boat. He put an additional bow eye in to hook a separate safety chain from below the winch. He'd also tie the bow lines around the winch stanchion, he really didn't want that boat on the highway.

 

[MikeD74T]

Skyco & Jimmysisson, Don't know about truck tires but I routinely fill bottles with 5000 psi breathing air. Full bottles are about 100 lbs heavier than empty ones. MikeD74T

 

[KennyG]

Skyco & Jimmysisson, Don't know about truck tires but I routinely fill bottles with 5000 psi breathing air. Full bottles are about 100 lbs heavier than empty ones. MikeD74T

For those technically oriented, the gas law PV=nRT says that for constant temperature, the density is proportional to the pressure. If your tank gains about 100 lbs at 5000 psi, it would gain about 2 lbs at 100 psi (neglecting the difference between absolute and gauge pressure, which doesn't make much difference in this example). My guess is the truck tire only got a couple of lbs lighter when deflated.

 

[Skyco]

That was my guess too...:thumbsup:

 

[tungularafishcamp]

But what if it was filled when a high pressure system was in and filled with heavy air:laughing:

 

[bigtiller]

I was told by a volunteer fireman that full air-packs were lighter than empty ones.

Who's correct? I have no idea now. But for some reason I am leaning toward what the fireman said.

 

[Bob77064]

Sounds like when you inflate a tube or other inflatable.

 

[buck12]

This past weekend my wife and I happened upon what appeared to be a two vehicle wreck. When we got closer it was actually a pickup and single axle trailer spaced about a hundred feet apart. The trailer was up side down with two motorcycles still securely in place. I don't know if a tire blew or what but one thing for sure the guy did know how to strap a load.

 

[BethesdaEC]

I was told by a volunteer fireman that full air-packs were lighter than empty ones.

Who's correct? I have no idea now. But for some reason I am leaning toward what the fireman said.

Probably because by the time it is empty, they have been lugging it around for a while and it feels heavier.

 

[deepNdirt]

I was told by a volunteer fireman that full air-packs were lighter than empty ones.

Who's correct? I have no idea now. But for some reason I am leaning toward what the fireman said.

Sounds like a it's time for an experiment anyone got a truck inner tube they can weight deflated> and then air it up with say 30 lbs. and weight it,
or is this a job for the ((((-Myth Busters-)))):thumbsup:

 

[slowzuki]

Its not a job for mythbusters, a full scott air tank is heavier. An inner tube with more than 0 psi in it is heavier. This is 2000 year old archimedes type stuff folks.

 

[deepNdirt]

Its not a job for mythbusters, a full scott air tank is heavier. An inner tube with more than 0 psi in it is heavier. This is 2000 year old archimedes type stuff folks.

Ah Yes! but still an interesting subject to argue over eh!

for instance: let us take 2 balloons, fill one with air the other remains flat,
with one in 1-hand the other in your other hand, tossing them into the air at the same time, which one remains in the air? and which one immediately falls to the ground? Now we Know the 2 balloons weigh the same when empty and we are to believe the air filled balloon is supposed to be heavier, Right? or wrong! but yet it's the air filled one falling slowly to the ground, ah yes! but now we must consider it's Mass and how it comes into play, the air filled balloon is larger therefor has more resistance to the outside air surrounding the balloon
so why does the weight of the air inside the balloon not force the balloon to plunge to the ground regardless of its mass could it be because the air inside the balloon is equal to the air outside surrounding the balloon and could it be that the only reason the balloon drops at all is because of it's weight of substance, same as the unfilled balloon,
Next

 

[tungularafishcamp]

Ah but you forget that you filled the balloon just after eating that garlic/anchovie pizza thus filled it under pressure with heavy air. Now if you would chug a couple beers and then fill it with belchanese air it would float like a butterfly:laughing:

 

[Diamondpilot]

Seen a D5 dozer on a tri-axle equipment trailer behind a Ford 8000 dump truck not tied down at all today. He was doing about 45 in stop and go traffic by the mall on my way hone from work today.

Chris

 

[MikeD74T]

I was told by a volunteer fireman that full air-packs were lighter than empty ones.

Who's correct? I have no idea now. But for some reason I am leaning toward what the fireman said.

I'm a professional firefighter. Would that be me that you agree with? Any scuba diver will tell you that empty scuba tanks are more bouyant than full ones, despite the fact that full ones displace more water than empties. I also doubt anyone could tell be lifting how much air is in a truck tire, but the guy is either too strong to make fun of, has a great poker face, or both. I think bigtiller's firefighter hasn't figured out the progression of fatigue yet! MikeD74T

 

[bigtiller]

I'm a professional firefighter. Would that be me that you agree with? Any scuba diver will tell you that empty scuba tanks are more bouyant than full ones, despite the fact that full ones displace more water than empties. I also doubt anyone could tell be lifting how much air is in a truck tire, but the guy is either too strong to make fun of, has a great poker face, or both. I think bigtiller's firefighter hasn't figured out the progression of fatigue yet! MikeD74T

I think we can put this debate to rest. My firefighter friend must have been mistaken. When he told me that, he had been on the department for about 12 years and of that 12, at least four of them were with the rescue squad.

I have been keeping my air pig in the shop full of air all these years because he said it would be lighter that way. Live and learn I guess.