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United States Military Vehicle General: Guns, G*vins, and Gas Turbines


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3 hours ago, Insomnium95 said:

Apparently coronavirus is affecting production. I doubt it will be a major issue, timelines change quite often. BAE has delivered at least one prototype back in December. 

 

Although John did not disclose which company produced the delivered prototypes, a GDLS spokesperson confirmed that the company delivered its 12th and final prototype to the army at the end of December 2020. GDLS’s delivery completion means BAE Systems has delivered only two ballistic hulls to the service.

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What I'm hearing now is that the US Army isn't going/wasn't going to evaluate both MPF candidates at the same time, so BAE Systems has time to get their MPF prototype sorted for shipping https://www.overtdefense.com/2021/02/17/bae-systems-respond-to-mobile-protected-firepower-trial-no-show-reports/

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   Who needs it in 2021?

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   At the IDEX-2021 defense exhibition in the UAE, the American corporation AM General presented a new promo video for the new generation NXT 360 army SUV - the successor to the famous HMMWV 4x4 vehicle built on its chassis

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The 90 mm gun T54 was in response to the PITA of loading the separate projectile/propellant case of the 90 mm gun T15E2 found in the T26E4 Pershing. The 90 mm gun T15E2 was in response to the PITA of loading the unitary ammunition for the 90 mm gun T15E1, which was fitted to the first T26E1 pilot and sent over to Europe during World War II, and whose adventures can be read in Hunnicutt's Pershing and Irwin's Another River, Another Town. The T54 gun went back to a unitary round, but the propellant case was shorter and wider, which eased handling in the confines of the tank but kept the chamber volume and ballistics equal to the gun T15E2. Two M26 pilots were armed with the T54 and designated M26E1; forty-one 90 mm rounds were stowed, with five in the loader's ready rack and the rest in the hull floor bins. Tests were conducted from 1947-1949, and the T54 was deemed the best extant US tank gun. Then nothing else happened with it... MV with AP-T was 3,200 ft/s (4.9" RHA penetration at 1,500 yards and 30 degrees); HVAP 3,750 ft/s (7.7" RHA at 1,500 yards and 30 degrees).

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https://www.defensenews.com/land/2021/03/01/us-armys-newest-tracked-vehicle-will-undergo-initial-operational-test-in-early-2022/

 

The Army said in a recent statement to Defense News that, overall, the 2019 test was a success and the fixes included “minor movement of mission equipment packages to reduce interference” and in the medical evacuation variant, “improvements in operating the litter lift system and medical treatment table.”

The design updates “were determined to be quick wins and have either already been incorporated into the first low-rate initial production AMPVs or will be implemented prior to the First Unit Equipped,” the Army program office said.

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https://sdquebec.ca/fr/nouvelle/soucy-international-inc-defense-division-awarded-contract-to-integrate-segmented-composite-rubber-track-on-to-u-s-army-omfv-technology-demonstrator

 

Soucy International Defense Division, has been awarded a contract to manufacture and deliver prototype Segmented Composite Rubber Track (SCRT) systems for the U.S Army Ground Vehicle Systems Center (GVSC) as part of the Platform Electrification and Mobility (PEM) project

 

Soucy will refine existing SCRT technology as part of the OMFV Demonstrator within the PEM program that is aimed to achieve its goal of silent mobility, reduce track system weight compared to conventional steel tracks, reduce rolling resistance, and ease maintenance and logistical burden. One of the major technical objectives of the PEM project is to provide silent mobility for a 50-ton tracked vehicle. 

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On 3/6/2021 at 9:31 AM, Jackvony said:

Does anyone have any information detailing the steel applique armor added on the M2/M3A2 upgrade? I know it's said its believed to stop 30mm fire in the frontal arc. 

 

I don't have my sources handy, but it's a simple thin plate of HHA spaced out by an inch or so. It mostly works on the same principles as Ye Olde Schurzen, with the high hardness steel tilting the round and forcing it to impact sideways on the base plate. And by 30mm fire, they mean the old 3UBR6 APBC, which is hardly a terrifying round.

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