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Lebroba
Post subject: NX-ASPosted: January 23rd, 2014, 2:52 am
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Location: Yokosuka, Japan
This is my first SB style drawing. It is based on a 3D model I built. Still a wip hopefully it will improve with positive feedback from the community.

The concept is kind of AU. This is a design that would have replaced Los Angeles class SSNs.

Link to the3D versionfor comparison.

[ img ]


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Lebroba
Post subject: Re: NX-ASPosted: January 23rd, 2014, 5:15 am
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Location: Yokosuka, Japan
NX-AS (Next-Generation Attack Submarine)
Specifications
Displacement:
Submerged: 6,400 t
Dimensions:
Length: 104 m
Beam: 11.4 m
Draft: 9.3 m
Electronics:
Combat Management System: AN/BYG-1
SONARS: AN/BQQ-10 SONAR Suite
AN/BQG-5A Wide Aperture Passive Flank Array
TB-29(A) Towed Array
Periscopes: 2 x AN/BVS-1 Photonic Masts
Radar: AN/BPS-16(V)4
Electronic Warfare: AN/BLQ-10

Weapons:
Torpedo tubes: 4 x 53 cm
Torpedoes: Mk 48 ADCAP
Missile Tubes: Variable
Missiles: Variable

Machinery:
Nuclear Plant: 1 x General Electric S9G PWR, 2 Turbo-Generators
Pump Jets: 4 x 7,000 hp (28,000 hp / 21 MW) Pump Jets

Structure: An evolution of the SSN-21 Program, the NX-AS design was selected to replace the aging 688 fleet of SSNs . The NAS sacrifices the top speed and weapons payload of the Seawolf class for improved stealth and flexibility in payload.

NX-AS has a reconfigurable mission bay (RMB) capable of carrying a variety of purpose built mission modules. These modules consist of various missile launch systems, mine laying, special forces and intelligence operations equipment. The major mission modules can be swapped out in a matter of weeks at specialized shore facilities and lesser alterations can be made by submarine tenders.

In addition to the RMB the NX-AS uses a distributed propulsion system (DPS) consisting of four (4) 7,000 hp turbo pump jets. In addition to SSN-21 level quieting already integrated into NX-AS systems, the pump jets reduce exploitable broadband and narrowband signatures even further. It is estimated that NAS can remain undetected by any sensor system currently employed.


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Charybdis
Post subject: Re: NX-ASPosted: January 23rd, 2014, 12:15 pm
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Very nice work. It looks more Russian than American but I like it.


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Lebroba
Post subject: Re: NX-ASPosted: January 23rd, 2014, 12:54 pm
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Thanks. I think we realized akulas and victors had a better sail design than 688s.


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klagldsf
Post subject: Re: NX-ASPosted: January 23rd, 2014, 5:49 pm
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So did the USN (eventually) if you look at future Block Virginias.


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Lebroba
Post subject: Re: NX-ASPosted: January 24th, 2014, 6:15 am
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Location: Yokosuka, Japan
Quote:
Initiate development of an advanced sail concept to exploit shaping and materials to improve ship hydrodynamics, add aditional volume for mission capability enhancements, and reduce the ship's acoustic and non-acoustic signatures.
This was taken from the Federation of American Scientists website.


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Judah14
Post subject: Re: NX-ASPosted: January 24th, 2014, 10:55 am
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Joined: March 5th, 2013, 11:18 am
Nice design! The Tomahawk is the old poorly-drawn version however.


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Shipright
Post subject: Re: NX-ASPosted: January 24th, 2014, 11:35 pm
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No flank array?


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Lebroba
Post subject: Re: NX-ASPosted: January 26th, 2014, 3:00 am
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Added a few things. Updated the tomahawk to the newest version from the parts sheet. Attempted to draw flank arrays. I'm not satisfied with them but I think its a good start.

Also going to put this in SSN design challenge.

[ img ]


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