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Warship

Singapore

ST Engineering Land Systems

Formidable-class

The Republic of Singapore Navy's principal multi-role stealth frigate, based on the French La Fayette-class design and locally fitted out by ST Engineering with the Aster-15 air-defense missile system and Herakles multifunction radar.

In service since 2007 · 1 operator countries

Compiled from public sources ·primary reference ↗ ·last verified 2026-07-02

3,200

4,200

nmi

VLS

crew

Procurement snapshot

Availability & export

National export licensing

Subject to Singapore export-control approval; verify eligibility with the manufacturer.

Channel: Direct commercial / G2G

Fielded & proven

Limited · 1 operator

In service since 2007. Status: active · ~6 built.

Lifecycle cost (est.)

No public unit price to model from. Why so few systems publish one →

Interoperability

Mk 41 VLS-class

Derived guidance from public data, export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.

Full specifications

Firepower

Armament, payload and guidance.

Firepower specifications
Main armament Primary weapon: main gun, cannon or missile type.	76 mm Oto Melara Super Rapid naval gun
VLS cells Vertical-launch missile cells on a warship, a proxy for magazine depth. Higher means more missiles before rearming.	32 Stronger than 52% of warships
Torpedo tubes Number of torpedo tubes (submarines and some surface ships).	6 Stronger than 70% of warships

Physical

Dimensions, weight and crew.

Physical specifications
Length Overall length including gun/probe where applicable.	114.8 m

Naval

Displacement, speed, endurance and diving depth.

Naval specifications
Displacement Standard displacement in tonnes, the ship’s size class. Larger hulls carry more but cost more and are less agile.	3,200 t
Full-load displacement Displacement fully loaded with fuel, stores and munitions.	3,600 t
Max speed Top speed in knots (surfaced, for submarines). Higher aids positioning and screening.	27 kn Stronger than 35% of warships
Range Cruising range in nautical miles. Nuclear vessels are effectively unlimited (fuel-wise). Higher means more reach without replenishment.	4,200 nmi Stronger than 22% of warships
Complement Crew size. Fewer eases manning cost; more may indicate a larger, more capable platform.	90
Aircraft carried Embarked aircraft/helicopters. Higher extends the ship’s sensor and strike reach.	1 Stronger than 21% of warships
Propulsion plant Machinery type, nuclear reactor, gas turbine (COGAG), CODAG, diesel-electric, AIP.	CODAD (4× diesel engines)

Sensors & avionics

Radar, sensor suite and datalinks.

Sensors & avionics specifications
Radar Primary radar. AESA (active electronically scanned array) is the current state of the art.	Herakles multifunction radar

Program

Cost, production scale and operators.

Program specifications
Units built Total production run. Higher means proven manufacturing, mature logistics and spares availability.	6 Stronger than 78% of warships
Operator countries Number of countries operating the system. More operators means broader support ecosystem.	1 Stronger than 45% of warships

Specifications compiled from public ST Engineering Land Systems and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-07-02.

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