U.S. Army Unveils 'Revolutionary' XM25 Rifle in Afghanistan

[63echo]

...and the MOS's ( Military Occupation Specialty) or something close to that was still called MOS...

They're not called MOS's anymore??

 

[SaltwaterServr]

but isn't it more of a case of LBS per SQ INCH pressure? And amount of time? Like I said its been about 30 years since I was into this so not sure at all.

Not really if you are looking at a structural failure. The tank exerts 148,000 pounds of force by gravity only and its treads are designed to spread out that force over X units of surface area. A bridge is designed to spread out any force exerted on it by a vehicle throughout the entire structure. The weakest element will still fail no matter if the force is exerted by four wheels for forty wheels, unless the failure is in the bridge driving surface.

A M1A1, using the 74 tons as a benchmark, exerts 148,000 pounds of pressure as I said above. The same tank, going 45 mph, exerts 334,660 pounds of pressure (force= mass times acceleration again) against an object it would encounter head on. The faster you go, the more force you exert against the bridge, and therefore increase the likelihood of a structural failure.

 

[Zaxor]

They're not called MOS's anymore??

nope at least I believe that to be true having talked to one of our soldiers recently forgot what he called it though.