U. S. Navy

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Viajante

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Re: U. S. Navy
« Responder #795 em: Setembro 23, 2022, 05:17:47 pm »
Marinheiro acusado de atear fogo em navio de guerra estava “irritado por ser designado para o serviço de convés”


USS Bonhomme Richard

A embarcação ardeu durante quase cinco dias em julho de 2020. O navio ficou tão danificado que teve de ser afundado

O marinheiro Ryan Sawyer Mays, de 21 anos, é acusado de ter ateado o incêndio no USS Bonhomme Richard, um navio de guerra dos EUA, de forma deliberada e criminosa. Segundo o processo, o jovem estaria irritado por ter sido mandado para o serviço de convés depois de não ter conseguido tornar-se um SEAL da Marinha.

O comandante Leah O’Brien descreveu Mays como arrogante, acrescentando que o incêndio foi “um ato malicioso de desafio que correu mal”. Durante todo o processo, o marinheiro negou as acusações.

O advogado de defesa, Tayler Haggerty, afirma que não foram apresentadas provas físicas de como era o marinheiro o culpado do incêndio. Haggerty explica que os investigadores ignoraram as evidências e relatos de testemunhas, para que pudessem encontrar um culpado “para a perda de um navio caro que tinha sido mal administrado por oficiais superiores”, lê-se na Sky News.

Por isso, a defesa acredita que decidiram que o culpado era Mays, um marinheiro conhecido por ser sarcástico e irreverente, e que “nada mais importava”. “Só porque o governo elimina e ignora provas, isso não significa que o tribunal deva fazê-lo.”

O julgamento, que deve durar duas semanas, está a deparar-se com uma dificuldade que ameaça atrasar a sua conclusão: a incapacidade de muitas das testemunhas de recordarem o que aconteceu no dia do incêndio.

A embarcação ardeu durante quase cinco dias em julho de 2020. Cerca de 115 marinheiros estavam a bordo e quase 60 sofreram por inalação de fumos e ferimentos leves. O navio ficou tão danificado que teve de ser afundado.

https://visao.sapo.pt/atualidade/mundo/2022-09-21-marinheiro-acusado-de-atear-fogo-em-navio-de-guerra-estava-irritado-por-ser-designado-para-o-servico-de-conves/

 :o :o
« Última modificação: Setembro 23, 2022, 05:18:31 pm por Viajante »
 
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Re: U. S. Navy
« Responder #796 em: Setembro 23, 2022, 06:24:34 pm »
Tu não dês ideias a esta malta...  8)
https://www.youtube.com/user/HSMW/videos

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Re: U. S. Navy
« Responder #797 em: Dezembro 24, 2022, 11:43:19 am »
 

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"[Os portugueses são]um povo tão dócil e tão bem amestrado que até merecia estar no Jardim Zoológico"
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Re: U. S. Navy
« Responder #799 em: Janeiro 17, 2023, 05:29:31 pm »
NASSCO Pitches ESB Drone Mothership Variant To US Navy
NASSCO has proposed major modification concepts to the U.S. Navy's Expeditionary Sea Bases, or ESB, which could see them serve as motherships for XLUUVs and UAVs, or transit F-35 airframes...

General Dynamics NASSCO has developed several major modifications for its line of Expeditionary Sea Bases (ESB) to cater to emerging U.S. Navy and Marine Corps requirements. Thanks to the ESB’s commercial origins from the Alaska-class oil tanker, the potential of the class has been described as “unlimited” by NASSCO. This “unlimited potential” has resulted in modification concepts that could turn ESBs into drone motherships or even aviation support ships.

While these potential modifications made their debut during Sea Air Space Symposium 2022, the same modifications were once again shown at this year’s Surface Navy Association National Symposium by the company.

Jim Strock, an independent consultant working with NASSCO on the ESB, explained the process NASSCO used to tailor these concepts and capabilities toward the future requirements of the force:

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“We did two things. We looked at emerging operational concepts. We looked at Expeditionary Advanced Base Operations, Distributed Maritime Operations, and Littoral Operations in a contested environment. We looked at future operating concepts. And then we wrote papers on how the ships could support accomplishment missions within those concepts.”

Various modifications made to support these operational concepts have been created by NASSO. Such modifications include a new aft flight deck to support unmanned aerial vehicle flight operations, the addition of repair facilities, and the capability to perform replenishment at sea with other vessels. Of these, the two most noteworthy and comprehensive modifications to the ESB are the plans to fit an unmanned underwater vehicle (UUV) bay and what seems to be the embarkation of Marine Aircraft, including F-35Bs, on the ESB. 


UUV Mothership Concept Graphic. Note the launch and recovery system and the number of XLUUVs onboard the ESB. Photo courtesy of General Dynamics NASSCO.

Strock explained that through a specially made launch system located inside of the vessel, an ESB can support various UUVs including the Orca Extra-Large UUV.

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We call it the Rotary UUV Launch And Recovery System, the RULARS. So we talked about how that can be engineered into the ship. This (referring to the document)  shows just a moon pool. Then we went on to look at the counter-rotating system.”

NASSCO looked into a rotating system due to stability concerns at sea caused by a moon pool-type launch and recovery operation.

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It is much better in mitigating the effects of sea state surge and water coming up. It stabilizes the vehicle and keeps it in the upright position as it rotates down into the water. So the moon pool would work, but you get a lot of wave action and surface action that could become problematic. It’s hard to see here (referring to document), but it goes in, rotates around, and goes out.”


One of the concepts involves the addition of an aft helipad that would support the operation of UAVs. Photo courtesy of General Dynamics NASSCO.

...

https://www.navalnews.com/event-news/sna-2023/2023/01/nassco-pitches-esb-drone-mothership-variant-to-us-navy/
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Re: U. S. Navy
« Responder #800 em: Janeiro 20, 2023, 12:26:00 pm »
A closer view of the HELIOS laser aboard USS Preble (DDG 88) from Jan 17, 2023

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Re: U. S. Navy
« Responder #801 em: Janeiro 20, 2023, 12:42:27 pm »


US Navy Sets Out Capability Imperatives For DDG(X)

The US Navy (USN) has defined core capability imperatives that are driving development of its next-generation guided-missile destroyer (DDG), to be delivered under the DDG(X) programme.
Dr Lee Willett  19 Jan 2023

“The imperative for DDG(X) is the warfighting imperative,” Rear Admiral Fred Pyle, the USN’s Surface Warfare Director (OPNAV N96), told the Surface Navy Association (SNA) 2023 national symposium, in Arlington, Virginia, on 11 January.

“The ‘so what’ behind DDG(X) is that capability to deliver larger missile launchers so we can have a stick that meets that of the adversaries. That’s a key element,” said RADM Pyle.

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“For DDG(X), I think we have a good picture on the top-level requirements. It’s going to bring us the opportunity to use larger missile launchers. It’s going to bring us the opportunity to use more higher-power lasers and long-range strike hypersonic weapons, as well as sensor growth, as we go into the future. That’s the ‘so what’ behind DDG(X) and the warfighting capability it brings.”
Rear Admiral Fred Pyle, the USN’s Director Surface Warfare/N96

“Shipbuilding is a long game,” RADM Pyle explained. “So, when we achieve the directed energy power we’re looking for, or high-power microwaves, or … lasers, we want to have a platform to land it on. That’s a key capability as well.” Here, he noted the need for the ship’s operational design requirement to accommodate larger sensors.

“The warfighting imperative for DDG(X) gives us the opportunity to get a larger missile launcher, increase our capacity of weapons, deliver long-range strike hypersonic weapons, and increase directed energy weapons that we have on board as well as growth sensors such as the [Raytheon] SPY-6 [active electronically scanned array 3-D radar], to pace the threat going into the next decade and beyond,” RADM Pyle told Naval News, in an exclusive interview on the SNA exposition show floor.


Provision to install a larger missile launcher to increase DDG(X) weapons capacity reflects the navy’s intent to grow conventional strike capability across its surface fleet, including through installation of large missile vertical launch systems (LMVLS) that can carry a broader range of weapons, and through increasing inventory and stock of key weapons systems including the Naval Strike Missile, Tomahawk land-attack missile, and Standard Missile (SM)-6.

RADM Pyle noted a second imperative – what he referred to as ‘SWPC’, namely space, weight, power, cooling. While underscoring the significant capability the in-service Arleigh Burke-class destroyer has delivered for nearly 40 years, the admiral said there is now an issue with space, weight, power, and cooling in US DDG design and capability. “The margin for those in that capability is no longer there,” he told Naval News. “We need DDG(X) to have a margin for that space, weight, power, and cooling.”



As regards the timeframe for delivering DDG(X), “We’re going to start moving out on that effort at the end of the decade/beginning of the next decade,” RADM Pyle told the SNA symposium.

The USN’s Chief of Naval Operations (CNO) Admiral Michael Gilday reiterated the importance of DDG(X) for the navy. “We need that platform,” CNO told the SNA audience, in his keynote address on 10 January. Adm Gilday noted that transition to DDG(X) will begin in the early 2030s. He highlighted, however, various programmatic and funding commitments the USN will need to balance across the timeframe. “That transition [to DDG(X)] needs to be deconflicted a bit with the investments we’re making in NGEN [a major information technology, data, and communications infrastructure programme] and the investments we will make later in the decade in SSN(X), the next generation submarine. In the middle falls DDG(X).”

https://www.navalnews.com/event-news/sna-2023/2023/01/us-navy-sets-out-capability-imperatives-for-ddgx/
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Re: U. S. Navy
« Responder #803 em: Fevereiro 02, 2023, 05:38:00 pm »
7. Todos os animais são iguais mas alguns são mais iguais que os outros.

 

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Cabeça de Martelo

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Re: U. S. Navy
« Responder #804 em: Fevereiro 15, 2023, 11:38:36 am »
Chris Cavas

New SEWIP Surface Electronic Warfare Improvement Program installation on destoyer PINKNEY DDG91, seen at @GDNASSCO shipyard in San Diego on 13 Feb.  Billed as an upgrade to the legacy SLQ-32 electronic warfare system, the SLQ-32(V)7 SEWIP is one heck of an installation. Compare with sistership SPRUANCE DDG111 at left. Note how the new system projects out past the ship's hull extending her overall beam. Here the new (left) and old (right) systems are highlighted. Both ships are undergoing availabilities at the busy San Diego shipyard.









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Re: U. S. Navy
« Responder #805 em: Fevereiro 15, 2023, 04:40:06 pm »
Não sei se já tinham colocado aqui. Lista dos navios que a US Navy vai retirar de serviço até final do ano:

https://news.usni.org/2022/08/15/navy-wants-to-decommission-39-warships-in-2023

Com pouco mais de 30 anos são novos para nós  :mrgreen:
 

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Re: U. S. Navy
« Responder #806 em: Fevereiro 16, 2023, 08:10:59 am »
New SEWIP Surface Electronic Warfare Improvement Program installation on USS Pinkney (DDG-91)

https://twitter.com/CavasShips/status/1625762244893237248?t=etuWw0Ehz76i_sWOpeLpNQ&s=19




"[Os portugueses são]um povo tão dócil e tão bem amestrado que até merecia estar no Jardim Zoológico"
-Dom Januário Torgal Ferreira, Bispo das Forças Armadas
 
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Re: U. S. Navy
« Responder #807 em: Fevereiro 16, 2023, 09:16:37 am »
É quase do tamanho das antenas do SPY-1. Essa cena até deve fritar ovos.
Talent de ne rien faire
 

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Cabeça de Martelo

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Re: U. S. Navy
« Responder #808 em: Fevereiro 17, 2023, 12:31:14 pm »
Austal USA Delivers First ‘Autonomous Capable’ EPF Ship To US Navy

Austal USA delivered Expeditionary Fast Transport USNS Apalachicola (EPF 13) to the U.S. Navy, today. This is the 2nd Navy ship named after the coastal Florida city; both ships were built in Mobile.

...

 :arrow: https://www.navalnews.com/naval-news/2023/02/austal-usa-delivers-first-autonomous-capable-epf-ship-to-us-navy/
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Re: U. S. Navy
« Responder #809 em: Fevereiro 22, 2023, 01:26:06 pm »
US Navy Can’t Keep Up with China’s PLA In Shipbuilding, Service Chief Says (excerpt)

Feb. 22, 2023
(Source: CNN; posted Feb. 22, 2023)

https://www.defense-aerospace.com/us-cant-keep-up-with-chinese-navy-shipbuilding/
"[Os portugueses são]um povo tão dócil e tão bem amestrado que até merecia estar no Jardim Zoológico"
-Dom Januário Torgal Ferreira, Bispo das Forças Armadas