Uploaded June 2026 | Updated September 2026, 2 weeks ago
We spotted this Italian navy vessel when we were looking from the deck of the Roya Harmony cruise ship last Wednesday.
Trieste L9890 is a multi-purpose landing helicopter dock (LHD) of the Italian Navy. The ship replaced the aircraft carrier Giuseppe Garibaldi and is the largest vessel in the Italian fleet. She was ordered as part of the 2014–2015 naval program and was built at the Castellammare di Stabia shipyards of Fincantieri. On 7 December 2024, the ship was commissioned at the Italian Navy's base in Livorno.
The new multi-role/multi-function amphibious ship has a full load displacement of approximately 38,000 tons and an overall length of about 245 meters (803 ft 10 in), making it the largest unit in the fleet.
Name Trieste
Namesake Trieste, a city and seaport in northeastern Italy
Builder Fincantieri, Castellammare di Stabia, Naples, Italy; Cantiere navale del Muggiano, La Spezia, Italy
Cost € 1.171 billion
Laid down 20 February 2018
Launched 25 May 2019
Commissioned 7 December 2024
Identification Pennant number: L9890
General characteristics
Type Landing helicopter dock
Displacement 38,000 t (37,000 long tons) full load
Length
245 m (803 ft 10 in) LOA[8]
213.4 m (700 ft 2 in) LPP[9]
Beam 47 m (154 ft 2 in)
Depth 7.2 m (23 ft 7 in)
Propulsion
CODOG scheme + electric engines
2 × Rolls-Royce MT30 gas turbines providing 76,000 kW (102,000 hp)[10]
2 × MAN 20V32/44CR diesel engines, 24,000 kW (32,000 hp)[10]
4 × diesel engines generators MAN 9L32/44CR, 20,960 kW (28,110 hp)
2 × 2,250 kW (3,020 hp) electric engines
2 × shaft
Speed
25 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
Range 7,000 nmi (13,000 km; 8,100 mi) to 16 knots (30 km/h; 18 mph)
Endurance 30 days
Complement
460 crew
604 marines component
(max 1043 + 21)
Sensors &
processing systems
Leonardo CMS SADOC Mk4
1 × Leonardo Kronos Dual Band, AESA 3D DBR 4FF, only with X-band radar (Kronos StarFire)[11]
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
Electronic warfare
& decoys integrated EW System by Elettronica Spa with RESM/RECM/CESM and ELINT/COMINT capabilities
Armament
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 2 × 8-cell SYLVER A50 VLS for 16 Aster 15 and 30 missiles
Aircraft carried usually 12 × AgustaWestland AW101 or combination with SH90A, AgustaWestland AW129D and F-35B
We spotted this Italian navy vessel when we were looking from the deck of the Roya Harmony cruise ship last Wednesday.
Trieste L9890 is a multi-purpose landing helicopter dock (LHD) of the Italian Navy. The ship replaced the aircraft carrier Giuseppe Garibaldi and is the largest vessel in the Italian fleet. She was ordered as part of the 2014–2015 naval program and was built at the Castellammare di Stabia shipyards of Fincantieri. On 7 December 2024, the ship was commissioned at the Italian Navy's base in Livorno.
The new multi-role/multi-function amphibious ship has a full load displacement of approximately 38,000 tons and an overall length of about 245 meters (803 ft 10 in), making it the largest unit in the fleet.
Name Trieste
Namesake Trieste, a city and seaport in northeastern Italy
Builder Fincantieri, Castellammare di Stabia, Naples, Italy; Cantiere navale del Muggiano, La Spezia, Italy
Cost € 1.171 billion
Laid down 20 February 2018
Launched 25 May 2019
Commissioned 7 December 2024
Identification Pennant number: L9890
General characteristics
Type Landing helicopter dock
Displacement 38,000 t (37,000 long tons) full load
Length
245 m (803 ft 10 in) LOA[8]
213.4 m (700 ft 2 in) LPP[9]
Beam 47 m (154 ft 2 in)
Depth 7.2 m (23 ft 7 in)
Propulsion
CODOG scheme + electric engines
2 × Rolls-Royce MT30 gas turbines providing 76,000 kW (102,000 hp)[10]
2 × MAN 20V32/44CR diesel engines, 24,000 kW (32,000 hp)[10]
4 × diesel engines generators MAN 9L32/44CR, 20,960 kW (28,110 hp)
2 × 2,250 kW (3,020 hp) electric engines
2 × shaft
Speed
25 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
Range 7,000 nmi (13,000 km; 8,100 mi) to 16 knots (30 km/h; 18 mph)
Endurance 30 days
Complement
460 crew
604 marines component
(max 1043 + 21)
Sensors &
processing systems
Leonardo CMS SADOC Mk4
1 × Leonardo Kronos Dual Band, AESA 3D DBR 4FF, only with X-band radar (Kronos StarFire)[11]
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
Electronic warfare
& decoys integrated EW System by Elettronica Spa with RESM/RECM/CESM and ELINT/COMINT capabilities
Armament
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 2 × 8-cell SYLVER A50 VLS for 16 Aster 15 and 30 missiles
Aircraft carried usually 12 × AgustaWestland AW101 or combination with SH90A, AgustaWestland AW129D and F-35B
