Credit
USN · Public domain · Resized · Public domain · Source ↗ · Modified
FORCETALLY
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At a glance
Measured figures
ballasted
Single sourcenavigational
Single source22 ft (6.7 m) navigational, 34 ft (10 m) ballasted[source]
Maximum; Speed
Single source21 knots (24 mph; 39 km/h)[source]
Maximum; on diesel engines
Single sourceMaximum; on electric engines
Single sourceMaximum; on TAGs
Single source25 knots (46 km/h; 29 mph) on TAGs 18 knots (33 km/h; 21 mph) on diesel engines 10 kn (19 km/h; 12 mph) on electric engines[source]
to 16 knots (30 km/h; 18 mph)
Single source7,000 nmi (13,000 km; 8,100 mi) to 16 knots (30 km/h; 18 mph)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Configuration
| Specification | Austin-class amphibious transport dock | Italian landing helicopter dock Trieste |
|---|---|---|
| Power | 2 × boilers, 2 × steam turbines, 2 × shafts, 24,000 shp (18,000 kW)[source] | CODOG scheme + electric engines 2 × Rolls-Royce MT30 gas turbines providing 76,000 kW (102,000 hp) 2 × MAN 20V32/44CR diesel engines , 24,000 kW (32,000 hp) 4 × diesel engines generators MAN 9L32/44CR, 20,960 kW (28,110 hp) 2 × 2,250 kW (3,020 hp) electric engines 2 × shaft[source] |
| Name | Austin class[source] | Trieste[source] |
| Builders | New York Naval Shipyard , Ingalls , Lockheed[source] | — |
| Operators | United States Navy Indian Navy[source] | — |
| Preceded by | Raleigh class[source] | — |
| Succeeded by | San Antonio class[source] | — |
| Cost | US$235–419 million per unit[source] | € 1.171 billion[source] |
| In commission | 1965–2017 (U.S.)[source] | — |
| Planned | 13[source] | — |
| Completed | 12[source] | — |
| Canceled | — | |
| Active | 1 (with India )[source] | — |
| Retired | 11[source] | — |
| Type | Amphibious transport dock[source] | Landing helicopter dock[source] |
| Tonnage | 7,713 DWT[source] | — |
| Boats & landing craft carried | 1 × LCAC , or 1 × LCU & 3 × LCM-6 , or 4 × LCM-8 , or 9 × LCM-6 , or 24 × AAV[source] | — |
| Armament | 2 × 25 mm Mk 38 guns 2 × Phalanx CIWS 8 × .50-calibre machine guns[source] | 3 × Oto Melara 76 mm/62 Strales anti-aircraft guns 3 × OTO Melara 25/80 RCWS with Oerlikon KBA 25 mm 2 × Oto Melara ODLS-20 (decoys launchers) FFBNW 4 × 8-cell SYLVER A50 VLS for 32 Aster 15 and 30 missiles[source] |
| Aircraft carried | Up to 6 CH-46 Sea Knight helicopters[source] | usually 12 × AgustaWestland AW101 or combination with SH90A , AgustaWestland AW129D and F-35 B[source] |
| Country of origin | United States[source] United States[source] | — |
| Landing craft carried | 1 × LCAC , or 1 × LCU & 3 × LCM-6 , or 4 × LCM-8 , or 9 × LCM-6 , or 24 × AAV[source]Source-stated capacity; all configurations and qualifiers retained | — |
| Namesake | — | Trieste , a city and seaport in northeastern Italy[source] |
| Awarded | — | 3 July 2015[source] |
| Builder | — | Fincantieri , Castellammare di Stabia , Naples , Italy; Cantiere navale del Muggiano , La Spezia , Italy[source] |
| Yard number | — | 6260[source] |
| Laid down | — | 20 February 2018[source] |
| Launched | — | 25 May 2019[source] |
| Sponsored by | — | Laura Mattarella[source] |
| Commissioned | — | 7 December 2024[source] |
| Identification | — | Pennant number : L9890[source] |
| Depth | — | 7.2 m (23 ft 7 in)[source] |
| Endurance | — | 30 days[source] |
| Sensors & processing systems | — | Leonardo CMS SADOC Mk4 1 × Leonardo Kronos Dual Band, AESA 3D DBR 4FF, only with X-band radar (Kronos StarFire) 1 × Leonardo Kronos Power Shield, AESA LRR L-band radar 1 × Leonardo conformal IFF 1 × Leonardo Black Snake, anti torpedo towed array sonar 1 × TACAN 1 × PAR ( Precision Approach Radar ) Leonardo SPN-720[source] |
| Electronic warfare & decoys | — | integrated EW System by Elettronica Spa with RESM/RECM/CESM and ELINT/COMINT capabilities[source] |
| Notes | — | 50 m × 15 m (164 ft 1 in × 49 ft 3 in) dock, for 4 × 70 t LCU or 1 LCAC 55 m × 18 m (180 ft 5 in × 59 ft 1 in) garage decks for vehicles (1,200 m (3,937 ft 0 in) for parking vehicles) 21 m (68 ft 11 in) (25 m × 107 m (82 ft 0 in × 351 ft 1 in)) hangar (up to 2,600 m 2 (28,000 sq ft)) for up to 14 AgustaWestland AW101 or combination with SH90A, AgustaWestland AW129D and F-35B (or 530 m (1,738 ft 10 in) for parking vehicles) flight deck 230 m × 36 m (754 ft 7 in × 118 ft 1 in) flight deck with up to 9 spots for AW101 or combination with SH90A helicopters, AgustaWestland AW129D Role 2E NATO standard hospital (700 m 2 (7,500 sq ft)) with 28 beds[source] |