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Home» Event News» SNA 2019»Austal Further Improves its Frigate Design to Better Match Latest FFG(X) Requirements
Day 1 video coverage at SNA 2019
Austal's latest frigate design proposal for the U.S. Navy FFG(X) requirement. Naval News picture.

Austal Further Improves its Frigate Design to Better Match Latest FFG(X) Requirements

Xavier Vavasseur 16 Jan 2019

At SNA 2019, the Surface Navy Association’s National Symposium currently held near Washington DC, Austal AUSA unveiled the latest variant of its “Austal Frigate”.

The scale model on display at the show features a number of design modifications compared to both the original Austal Frigate design (first unveiled at Sea Air Space 2017) and its earlier update (unveiled one year ago at SNA 2018).

Austal Further Improves its Frigate Design to Better Match Latest FFG(X) Requirements 2
Austal USA image

The two major modifications consist in a longer hull (456 feet / 139 meters compared to 418 feet / 127 meters for the earlier design) and a CODAD propulsion system with controlable picth propellers (CPP). Earlier Austal Frigate designs featured a similar hull form to the Independence-class LCS as well as its waterjet/gaz turbine propulsion arrangement.

Austal’s latest frigate design proposal for the U.S. Navy FFG(X) requirement. Naval News picture.

Talking to Naval News at SNA 2019, Tim P. McCue explained that the Austal Frigate in this configuration “probably meets 90% of the U.S. Navy requirements”. He further explained that the reason for the stretched hull was to accommodate the new 32x VLS requirement (previous designs featured 16 silos) while the change in the propulsion system was to better match the speed requirement of “only” 26 knots. For the same reason, the Austal Frigate doesn’t feature a bulbous bow anymore (compared to the LCS hull form).

Austal will soon be conducting some tank tests of the new hull form to validate its characteristics and performance. As they further tweak the design, Austal might be able to shorten the hull length back.

Austal Further Improves its Frigate Design to Better Match Latest FFG(X) Requirements 4
Austal’s latest frigate design proposal for the U.S. Navy FFG(X) requirement. Naval News picture.

According to Austal, the Austal Frigate provides the capabilities and agility necessary to deter or engage and defeat adversaries in today’s environment. Based on a proven U.S. Navy parent design, the Austal Frigate restores the military advantages necessary to preserve peace trough strength or prevail in conflict with the United States’ strategic competitors. The Austal Frigate is designed to readily adapt to the increasingly complex global security environment, rapid technological advancements, and the changing character of war.

Austal Frigate specifications:
Hull: Trimaran
Length: 139 m (456 ft)
Beam: 32 m (105 ft)
Draft: 6.5 m (21 ft)
Speed: > 26 kts
Range: > 4000 nm
Berthing: > 183
Watercraft Operations: 7 m RIB (2)
Hangar & Flight Ops: MH-60R, MQ-8C

Sensors:
Processing Systems:
• Frigate Weapon System
• AN/SQQ-89(V)16 Undersea Warfare System
• Cooperative Engagement Capability
• Consolidated A!oat Networks & Enterprise Services
• Integrated Bridge Control System
• Automated Machinery Control Systems

Armament:
Service Life Allowance: > 5%
• Enterprise Air Surveillance Radar
• Surface Search / Navigation Radars
• EO/IR Capability
• AN/SQS-62 VDS & MFTA
• AN/SLQ-32(V)6 SEWIP Electronic Surveillance
• AN/WSN-7
• Mk 41 VLS (32)
• Naval Strike Missiles (8)
• Mk 110 57mm gun
• Mk 49 RAM
• M2HB .50 cal guns (6)
• Mk 53 NULKA (4)
• Torpedo Countermeasures


Austal FFG(X) Frigate SNA 2019 2019-01-16
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Authors

Posted by : Xavier Vavasseur
Xavier is based in Paris, France. He holds a Bachelor’s degree in Management Information Systems and a Master of Business Administration from Florida Institute of Technology (FIT). Xavier has been covering naval defense topics for nearly a decade.

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2 Comments

  1. Andy
    18 January 20192 h 05 min -

    I am guessing 456 feet is the longest you can build spilling out of the assembly building without hanging over the water or the road at the shipyard.

  2. KellyJ
    22 January 201921 h 45 min -

    It will be very interesting to see how they plan to squeeze 2 convention props and rudders onto that skinny center hull.

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