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FORBIN

Lieutenant General
Registered Member
USG Shows Off its Optionally-Manned Proteus Mini-Submarine
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on April 15, 2015

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Huntington Ingalls’ Undersea Solutions Group showed off its Proteus mini submarine at the Navy League’s 2015 Sea-Air-Space Exposition.

The potent-looking vessel can serve as a unmanned underwater vehicle or a manned swimmer-delivery system.
The battery-powered Proteus can carry six combat swimmers 350 to 700 nautical miles, depending on the type of battery used, according to USG officials.

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The wet sub measures 310 inches x 63.5 inches x 64 inches and weighs 8,240 pounds.

Proteus has a top speed of 10 knots. Undersea Solutions Group is the prime, working with Battelle and Bluefin Robotics on Proteus.

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Read more:
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Defense.org

More here, carry also External stores
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And futur SDV Mk.XI.
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FORBIN

Lieutenant General
Registered Member
Shipbuilder Austal announced on 15 April that it had delivered the fifth of ten Joint High Speed Vessels (JHSVs) to the US Navy (USN)

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The vessel, USNS Trenton , is part of a USD1.6 billion programme to amalgamate the previously separate US Army Theater Support Vessel (TSC) and the USN and US Marine Corps High Speed Connector (HSC) projects. Trenton was handed over on 13 April and joined four sister vessels currently in service with the US Military Sealift Command.

"We have received many positive reports about how the first four JHSVs have been performing in the fleet, and we are encouraged about the future of the JHSV programme," said Austal's CEO Andrew Bellamy in a statement marking the delivery.

According to IHS Jane's Fighting Ships , the JHSV can embark up to 312 troops and carry 545 tonnes of equipment and supplies. The vessel has a top speed of 43 kt and a standard range of 1,200 n miles at 35 kt.

Austal will deliver a further five JHSVs from the company's shipyard in Mobile, Alabama. Three of those are currently being build, the company said.

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Scratch

Captain
Yes!

Just as I had hoped.

This will be the SEAL's long sought after dry delivery vehicle. Takes off where the Advanced SEAL Delivery System (ASDS) left off.

However, that specific vessel, the Proteus is a wet sub, right? At least that is what I think the article sais.
 

SamuraiBlue

Captain
Does it matter?
I believe they are using dry suits so it really doesn't matter that much whether the sub inside is dry or not.
If they are still using wet suits then there will be some down time to change their clothes.
Depressurizing shouldn't be much of a problem since the sub would be traversing at around 10~15m for less then an hour.
 

Jeff Head

General
Registered Member
Does it matter?
I believe they are using dry suits so it really doesn't matter that much whether the sub inside is dry or not.
.
It does matter.

In certain conditions, even dry suits only work so long.

I used to do some heavy duty white water rafting on the Lochsa River in Idaho. We'd go every Spring when the water was high as a result of the Spring melt of snow in those mountains,.

Very cold water. Right around 33-34 degrees farenheit.

One year I was coming down with a friend in a two seat catamaran. In some heavy, heavy rapids, we flipped. My friend was picked up by our friends in the raft coming behind us...but their rope missed me and I washed on down.

I had an excellent dry suit on...but by the time I washed out and was able to swim to shore...I was in trouble. Thankfully, I was spared that day.

But my respect for that river and the big water grew immensely. From then on, I was not sticking my face into the haystacks and challenging the River so much. A couple of my friends would make fun of me every now and then...something about the "River had its way with you," and I would say to them, "Oh really? Well, take a dip for about a half mile in some of that big water and then get back to me."
 
The Florida test will place a static floating target at a range of 25 to 50 nautical miles from the test ship and fire five GPS guided hyper velocity projectiles (HVP) at the target as the final part of 20 planned firings for the railgun at the Eglin range.

Surviving a railgun firing may actually be easier than getting shot out of a cannon with gunpowder if the current could be applied over the length of the rail to stretch out the G load. If it was all applied instantaneously it would be a massive jolt. The fact that they are going to be testing GPS guided shells seems to indicate this may be so despite all the cables being at the breach. The armature that cradles the round seems to be the mechanism for shorting the rails so it may act like a moving current carrier if the charge is distributed over the length of the barrel.


...

in the Zumwalt Thread there was talking about shooting surface targets with rail-guns
https://www.sinodefenceforum.com/us-navy-ddg-1000-zumwalt-class.t5546/page-31#post-336799
I'm curious about what will be the full height of the splash made by the shell fired from a rail-gun?
 

Jeff Head

General
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US-Navys-New-LCS-to-Be-Named-USS-St_-Louis-1024x704.jpg

Naval Today said:
US Secretary of the Navy Ray Mabus recently announced that the next Freedom-variant littoral combat ship (LCS) will be named USS St. Louis.

The future USS St. Louis, designated LCS 19, will be the seventh ship to bear the name. The first St. Louis, a sloop of war, was launched in 1828. It spent the majority of its service patrolling the coasts of the Americas to secure interests and trade. In addition, it served as the flagship for the West Indies Squadron working to suppress piracy in the Caribbean Sea, the Antilles and the Gulf of Mexico region.

Mabus said, "The name St. Louis holds a strong naval legacy."

The LCS is designed to defeat littoral threats, and provide access and dominance in coastal waters. A fast, agile surface combatant, LCS provides war fighting capabilities and operational flexibility to execute focused missions close to the shore, such as mine warfare, anti-submarine warfare, and surface warfare.

St. Louis will be built with modular design incorporating mission packages that can be changed out quickly as combat needs demand. These mission packages are supported by detachments that deploy manned and unmanned vehicles, and sensors in support of mine, undersea and surface warfare missions.

The ship will be 388 feet long, have a waterline beam length of 58 feet and make speeds in excess of 40 knots. The construction will be led by a Lockheed Martin industry team in Marinette, Wisconsin.

This means soon they will name the next Independence Class LCS, LCS-20. That will make ten of each type.
 

Jeff Head

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Kongsberg_NSM_Freedom_LCS_SAS-2015_2.jpg

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SD's own NavyRecognition said:
At the Navy League’s 2015 Sea-Air-Space Exposition which was held last week near Washington DC, Kongsberg was showcasing some new Freedom class and Independence class LCS models fitted with eight Naval Strike Missiles (NSM) each. These two models appear to be Kongsberg's "Bolt On" solution to the US Navy new need for an Over The Horizon (OTH) Anti-Ship Missile (ASM).

One year ago during
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, Kongsberg was already showcasing what we described at the time as "armed to the teeth" LCS with over 18x launchers each similar to those found on the
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corvettes of the Royal Norwegian Navy.

The "Bolt On" solution, while more conservative and simpler, was recently validated with a live launch: "We proved it could be done in less than 3 months" Hans Kongelf, Vice President of Missile Systems at Kongsberg, told us during Sea Air Space 2015. He was referring to the very short time the Kongsberg team needed to fit an NSM system on board USS Coronado (LCS 4) and perform a successful test with the US Navy
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.

Asked about the main strengths of the NSM, Hans Kongelf gave Navy Recognition three key points:

- Defense penetration capabilities thanks to its stealth, extremely low sea-skimming flight profile and high G maneuvers.

- Target recognition: Each NSM is fitted with a library of ship profiles to recognize each ship classes.

- NSM is available today, it is in production, fielded by the Royal Norwegian Navy, the Polish Navy and selected by Royal Malaysian Navy


Right before Sea Air Space 2015, Raytheon and Kongsberg announced they formed a teaming agreement for the NSM. The pact represents a second step in the companies' efforts to offer world-class Offensive Anti-Surface Warfare (OASuW) solutions to the many governments interested in this warfare mission. Raytheon and Kongsberg formed a similar agreement last year to develop the Joint Strike Missile, the air-launched version of the NSM.

This is very good news and EXACLTY what I have been talking about for years.

With this type of exposure and these types of proposals towards the US Navy OTH ASM requirement for the LCS...we are going to see these vessels getting the ASM they need.
 

thunderchief

Senior Member
Pressure grows on Marines to consider lowering combat standards for women

Two years ago, Army Gen. Martin E. Dempsey, the nation’s top military officer, laid down an edict on the Obama administration’s plan to open direct land combat jobs to women: If women cannot meet a standard, senior commanders better have a good reason why it should not be lowered.

Today, the “Dempsey rule” appears to have its first test case.

The Marine Corps just finished research to see if female officers could successfully complete its rigorous Infantry Officer Course.

A IOC diploma is a must to earn the designation of infantry officer. Of 29 women who tried, none graduated; only four made it through the first day’s combat endurance test.

Corps public affairs said it did not have the data on which tasks proved the toughest for women. But one particularly demanding upper-body strength test is climbing a 25-foot rope with a backpack full of gear. A candidate who cannot crawl to the top fails the test.

Traditionalists see the 0-29 performance as a call to arms by those inside the Pentagon who are determined to have significant numbers of women in the infantry. They are on the lookout for standards they believe are no longer relevant in today’s battlefield.

“The pressure is on the services from the White House’s politically correct crowd vis-a-vis Obama’s
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appointees, who will force the services to accept degraded standards,” said Robert Maginnis, a retired Army officer and author of the book “Deadly Consequences: How Cowards Are Pushing Women Into Combat.”.....................................

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