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Description
The second nuclear design of the Pacific Submarine Command (PACSUBCOM), the Executor-class fast attack submarine, is the bureau's incumbent flagship class. It is conceptualized as an ideal Pacific nuclear-powered hunter-killer; with speed, stealth, and weaponry in mind, and designed for anti-submarine and -ship, direct support, land attack, Intelligence, Surveillance, and Reconnaissance (ISR) operations. It was drafted as a nuclear-powered follow-on to the initial Dauntless-class design, the long-range diesel-electric, of both the bureau and the indigenous submarines of allied PacRim states. Strategically, it directly responds to the PLAN's ever-increasing, and as of writing, formidable nuclear submarine and blue-water abilities. Expanding on the successes and honing the preceding class's weaknesses, which is evident in the larger, sleeker hull. In a similar light, having gained significant experience with the Dauntless class's nuclear reactor, the Executor-class adopted a similar pressurized water reactor (PWR), but differed as it used natural circulation (reactor vessel below, water tanks above). Other improvements related to reducing machinery and flow noise to the lowest levels attainable to the design available.

The first ship in the class was laid in 2008 and launched in 2011, being built by Kawasaki Shipbuilding Corporation at Kobe, Japan. Two follow-on Flight II machines have a 23.78m extension for specialist operations. It has an added staged propulsor and external sonar arrays, with slightly better internal equipment. Both boats are in drydock assembly and sea trials. The class name 'Executor' was selected to reflect the changing climate of nuclear submarine operations as the class was being designed and ultimately, its role in naval warfare - an executor of enemy fleets. At the moment, there are currently concepts floating within GHQ and amongst higher-rated commanders that a newer, larger, and quieter sub is to be deployed at least in the next decade. Though another concept of focus is a similarly-sized next-generation follow-on evolution to the Executor design.

The class also spurred the parallel development and subsequent commissioning of two (out of three) submarine tenders based on the Mashu-class replenishment ships, the Commodore-class, composed of class leader Commodore (AS-3), Mariveles (AS-5), and PCU Whitsun (AS-6), all named after Spratly Islands reefs.

Upon the class leader Executor's commissioning on June 2013, it was placed alongside SSN-038 at Sasebo, Japan, succeeding the then 23-year old boat as ComSubRon (Commander, Submarine Squadron) 1 leader. Following boats have been destined to Sasebo and Subic. All have achieved an honorary Battle Efficiency "E" from COMSUBPAC, with the youngest boat, Endurance, achieving two in 2018 and 2019, both under a single commanding officer. It has also been well-remarked in naval exercises and anecdotes as an "ace" of any fleet. This efficiency is owed to the design's much-improved endurance, quietness, engineering, and the crew and officers' excellent training and abilities. This also includes the standards set by the bureau and homeport crews, which ensure the quality of the vessels between patrols. In regards to quietness, it is often modestly rated slightly above the Ohio SSBN, and almost on par with the Seawolf, with anecdotal evidences often debating this. This performance is owed to the crew and build quality of the class. The class is often sent on missions regarding the insurance of freedom of navigation, protection of united interests, and predation from the PLAN. While details of these missions remain classified, it can be inferred that these often involve both the trailing of many Chinese military and paramilitary vessels and continuous reconnaissance of installations in the Spratly Islands and other contested regions.

As with the Dauntless, the submarine is a large tear-drop design. A smooth cylindrical outer hull that begins with a wide bow leads to a long cylindrical section that tapers at the screw and cruciform control surfaces. This outer hull encloses a four-compartment pressure hull. The forward compartment is slightly pushed back from the preceding Dauntless for the fitting of twelve VLS tubes for Tomahawk missiles, thus providing a vertical strike capability in any event. It is well believed that this option pushed the submarine back, given the hardware and political considerations, by at least 2 1/2 years. The forward command and weapon compartment with a bottleneck, before merging to create a single pressure hull that tapers towards the shaft area. Flight II has a more spacious single-hull arrangement, with the bow area bottleneck expanded, deletion of the side-mounted sonar arrays, and a propulsor, which has significantly decreased noise at the cost of speed. Both the pressure and outer hull is constructed from NS110 (HY-156) high yield steel. This permits the class to an estimated 500m (1,640ft) in depth.

Quieting measures are taken by the presence of rafting and anti-vibration rubber mountings, with the addition of anechoic tiling from bow to stern. Weaponry is launched via four bow-mounted 533mm (21") torpedo tubes. Sonar is mainly the ZQQ-7L Large Aperture Bow (LAB) Array, with conformal hydrophones mounted around the hull, and twin passive flank arrays on each side of the pressure hull's waist. For the Flight II, the side arrays have been replaced with the ZQG-5C Wide Sonar Array (WSA), bow sonar remains similar with Flight I. TB-34 fat-line and TB-29A thin-line TASS (Towed Array), which is deployed via the rudder plane tips and reeled in from a separate watertight compartment behind the pressure hull. TACM (Acoustic Countermeasures) dispensers launching ADC Mk4 decoys are mounted on dihedral stabilizers' tips, located immediately forward of the rudder assembly. These combat and sonar systems are centered around the ZSY-2C combat system, focused on tactical computers inside the control room. The submarines are scheduled to receive new technologies being developed within Open System Architecture. The standard mast outfit is composed of 1x optronic and 1x periscope, among a singular ESM (mounted atop the periscopes as well), SATCOM, communications, and civilian-grade surface radar masts . Retractable diving planes are located aft directly and above torpedo doors. A single SNR2 pressurized water reactor (PWR) with a turbo-electric direct driveshaft driving a 7-blade skewback screw, among other secondary machinery, provides ultra-quiet propulsion and capable of exceeding 30 knots in full power with significant decrease in quieting performance.

Ships in class:

Flight I:
Executor (SSN-56), Commissioned 2013 - Yokosuka, Japan / Subron 1
Exeter (SSN-57), Commissioned 2014 - Yokosuka, Japan / SubRon 1
Excellence (SSN-58), Commissioned 2016 - Subic Bay, Philippines / SubRon 3
Endurance (SSN-59), Commissioned 2017 - Subic Bay, Philippines / Subron 3

Flight II:
Earnest (SSN-60), Commissioned 2020 - Kota Kinabalu, Malaysia / SubRon 4
Eager (SSN-61), Expected commissioning 2022.

Weapons mounted are:
4x 21in (533mm) torpedo tubes capable of firing Mk. 48, Mk. 67 SLMM, Mk. 70 MOSS, UGM-84L Harpoon, among others (Only ADCAP and Sub-Harpoon shown)
34x torpedo racks available (assorted per deployment)
12x Vertical Launch Tubes for UGM-109E Tomahawk

Dimensions: Flight I - 112.3m length (368.6ft) , 10.4m (34.1ft) beam. Flight II - 125.6m length (412.1ft) , 10.4m (34.1ft) beam.
Displacement: Flight II - Surfaced 6,150 t, Submerged 7,100 t. Flight II - Surfaced 6,600 t, Submerged 7,800 t
Operational and Test Depth: 500m (1,640ft) safe depth
Speed: 15 knots surfaced, 30+ knots submerged , 32+ knots maximum. All reduced on Flight II due to tonnage.
Range: Unlimited, limited by onboard provisions
Complement: Flight I - 89 sailors (12 officers). Flight II - 110 sailors (15 officers)
Sonar: ZQQ-7L large aperture bow-array. Related mine/obstacle-avoidance and active intercept sonar. TB-29A & -34 towed array sonar. Connected to ZSY-2C CCS. Flight II has 6x Wide Sonar Array fitted on outer hull.

This model is on Shipbucket scale (1 pixel = 1 foot), ocean waves template to Junior General

Description
The second nuclear design of the Pacific Submarine Command (PACSUBCOM), the Executor-class fast attack submarine, is the bureau's incumbent flagship class. It is conceptualized as an ideal Pacific nuclear-powered hunter-killer; with speed, stealth, and weaponry in mind, and designed for anti-submarine and -ship, direct support, land attack, Intelligence, Surveillance, and Reconnaissance (ISR) operations. It was drafted as a nuclear-powered follow-on to the initial Dauntless-class design, the long-range diesel-electric, of both the bureau and the indigenous submarines of allied PacRim states. Strategically, it directly responds to the PLAN's ever-increasing, and as of writing, formidable nuclear submarine and blue-water abilities. Expanding on the successes and honing the preceding class's weaknesses, which is evident in the larger, sleeker hull. In a similar light, having gained significant experience with the Dauntless class's nuclear reactor, the Executor-class adopted a similar pressurized water reactor (PWR), but differed as it used natural circulation (reactor vessel below, water tanks above). Other improvements related to reducing machinery and flow noise to the lowest levels attainable to the design available.

The first ship in the class was laid in 2008 and launched in 2011, being built by Kawasaki Shipbuilding Corporation at Kobe, Japan. Two follow-on Flight II machines have a 23.78m extension for specialist operations. It has an added staged propulsor and external sonar arrays, with slightly better internal equipment. Both boats are in drydock assembly and sea trials. The class name 'Executor' was selected to reflect the changing climate of nuclear submarine operations as the class was being designed and ultimately, its role in naval warfare - an executor of enemy fleets. At the moment, there are currently concepts floating within GHQ and amongst higher-rated commanders that a newer, larger, and quieter sub is to be deployed at least in the next decade. Though another concept of focus is a similarly-sized next-generation follow-on evolution to the Executor design.

The class also spurred the parallel development and subsequent commissioning of two (out of three) submarine tenders based on the Mashu-class replenishment ships, the Commodore-class, composed of class leader Commodore (AS-3), Mariveles (AS-5), and PCU Whitsun (AS-6), all named after Spratly Islands reefs.

Upon the class leader Executor's commissioning on June 2013, it was placed alongside SSN-038 at Sasebo, Japan, succeeding the then 23-year old boat as ComSubRon (Commander, Submarine Squadron) 1 leader. Following boats have been destined to Sasebo and Subic. All have achieved an honorary Battle Efficiency "E" from COMSUBPAC, with the youngest boat, Endurance, achieving two in 2018 and 2019, both under a single commanding officer. It has also been well-remarked in naval exercises and anecdotes as an "ace" of any fleet. This efficiency is owed to the design's much-improved endurance, quietness, engineering, and the crew and officers' excellent training and abilities. This also includes the standards set by the bureau and homeport crews, which ensure the quality of the vessels between patrols. In regards to quietness, it is often modestly rated slightly above the Ohio SSBN, and almost on par with the Seawolf, with anecdotal evidences often debating this. This performance is owed to the crew and build quality of the class. The class is often sent on missions regarding the insurance of freedom of navigation, protection of united interests, and predation from the PLAN. While details of these missions remain classified, it can be inferred that these often involve both the trailing of many Chinese military and paramilitary vessels and continuous reconnaissance of installations in the Spratly Islands and other contested regions.

As with the Dauntless, the submarine is a large tear-drop design. A smooth cylindrical outer hull that begins with a wide bow leads to a long cylindrical section that tapers at the screw and cruciform control surfaces. This outer hull encloses a four-compartment pressure hull. The forward compartment is slightly pushed back from the preceding Dauntless for the fitting of twelve VLS tubes for Tomahawk missiles, thus providing a vertical strike capability in any event. It is well believed that this option pushed the submarine back, given the hardware and political considerations, by at least 2 1/2 years. The forward command and weapon compartment with a bottleneck, before merging to create a single pressure hull that tapers towards the shaft area. Flight II has a more spacious single-hull arrangement, with the bow area bottleneck expanded, deletion of the side-mounted sonar arrays, and a propulsor, which has significantly decreased noise at the cost of speed. Both the pressure and outer hull is constructed from NS110 (HY-156) high yield steel. This permits the class to an estimated 500m (1,640ft) in depth.

Quieting measures are taken by the presence of rafting and anti-vibration rubber mountings, with the addition of anechoic tiling from bow to stern. Weaponry is launched via four bow-mounted 533mm (21") torpedo tubes. Sonar is mainly the ZQQ-7L Large Aperture Bow (LAB) Array, with conformal hydrophones mounted around the hull, and twin passive flank arrays on each side of the pressure hull's waist. For the Flight II, the side arrays have been replaced with the ZQG-5C Wide Sonar Array (WSA), bow sonar remains similar with Flight I. TB-34 fat-line and TB-29A thin-line TASS (Towed Array), which is deployed via the rudder plane tips and reeled in from a separate watertight compartment behind the pressure hull. TACM (Acoustic Countermeasures) dispensers launching ADC Mk4 decoys are mounted on dihedral stabilizers' tips, located immediately forward of the rudder assembly. These combat and sonar systems are centered around the ZSY-2C combat system, focused on tactical computers inside the control room. The submarines are scheduled to receive new technologies being developed within Open System Architecture. The standard mast outfit is composed of 1x optronic and 1x periscope, among a singular ESM (mounted atop the periscopes as well), SATCOM, communications, and civilian-grade surface radar masts . Retractable diving planes are located aft directly and above torpedo doors. A single SNR2 pressurized water reactor (PWR) with a turbo-electric direct driveshaft driving a 7-blade skewback screw, among other secondary machinery, provides ultra-quiet propulsion and capable of exceeding 30 knots in full power with significant decrease in quieting performance.

Ships in class:

Flight I:
Executor (SSN-56), Commissioned 2013 - Yokosuka, Japan / Subron 1
Exeter (SSN-57), Commissioned 2014 - Yokosuka, Japan / SubRon 1
Excellence (SSN-58), Commissioned 2016 - Subic Bay, Philippines / SubRon 3
Endurance (SSN-59), Commissioned 2017 - Subic Bay, Philippines / Subron 3

Flight II:
Earnest (SSN-60), Commissioned 2020 - Kota Kinabalu, Malaysia / SubRon 4
Eager (SSN-61), Expected commissioning 2022.

Weapons mounted are:
4x 21in (533mm) torpedo tubes capable of firing Mk. 48, Mk. 67 SLMM, Mk. 70 MOSS, UGM-84L Harpoon, among others (Only ADCAP and Sub-Harpoon shown)
34x torpedo racks available (assorted per deployment)
12x Vertical Launch Tubes for UGM-109E Tomahawk

Dimensions: Flight I - 112.3m length (368.6ft) , 10.4m (34.1ft) beam. Flight II - 125.6m length (412.1ft) , 10.4m (34.1ft) beam.
Displacement: Flight II - Surfaced 6,150 t, Submerged 7,100 t. Flight II - Surfaced 6,600 t, Submerged 7,800 t
Operational and Test Depth: 500m (1,640ft) safe depth
Speed: 15 knots surfaced, 30+ knots submerged , 32+ knots maximum. All reduced on Flight II due to tonnage.
Range: Unlimited, limited by onboard provisions
Complement: Flight I - 89 sailors (12 officers). Flight II - 110 sailors (15 officers)
Sonar: ZQQ-7L large aperture bow-array. Related mine/obstacle-avoidance and active intercept sonar. TB-29A & -34 towed array sonar. Connected to ZSY-2C CCS. Flight II has 6x Wide Sonar Array fitted on outer hull.

This model is on Shipbucket scale (1 pixel = 1 foot), ocean waves template to Junior General