Ninfe-class research vessel

Class overview
Galatea (A 5308), Port of Livorno, 2013
Name:	Ninfe class
Builders:	Intermarine, Sarzana (La Spezia)
Operators:	Marina Militare
Preceded by:	Mirto (A 5306) and Pioppo (A 5307)
In commission:	2002
Planned:	2
Completed:	2
Active:	2
General characteristics
Type:	Survey vessel
Displacement:	415 tonnes, full load
Length:	39.2 m (129 ft) oa
Beam:	12.6 m (41 ft)
Draught:	2.5 m (8.2 ft)
Propulsion:	- 2 x diesel engines Isotta Fraschini V1708-T2-ME (1,396 kW (1,872 hp) eachone) with ABB/Marelli generator - 2 x diesel engine AIFO GE8210M22, for harbour duties - 2 x Schottel azimuthal propellers - 2 Schottel bow thrusters^[1]
Speed:	13 knots (24 km/h; 15 mph)
Range:	1,700 nautical miles (3,100 km; 2,000 mi) at 13 knots (24 km/h; 15 mph)
Complement:	31
Sensors and processing systems:	2 x navigation radar GEM Elettronica SPN-753

The Ninfe class of survey vessels ^[2] consists of two catamaran hulls operated by the Marina Militare Italiana.

Features

They was designed to carry out hydro-oceanographic surveys at high sea and in harbours and shallow waters, in order to guarantee the production and updating of nautical charts.
Main activities:
^[3]

sounding
minimum depth
topography of shorelines and port facilities
seabed features
collection of nautical and geographical data for the updating of nautical documentation
detection of sunken vessels or dangerous underwater obstacles

The collected data are then processed by means of dedicated software programs and then used to produce:

paper and electronic nautical charts for the safety of navigation
Additional Military Layers
nautical, scientific and technical documentation for mariners
oceanographic databases for scientific purposes

Characteristics

It is fitted with:

multi-beam echo sounder Simrad EM300 (30 kHz)^[4]
single-beam echo sounder Simrad EA500 (12, 120 e 200 kHz)
single-beam echo sounder Atlas Deso 25 (33, 100 e 210 kHz)
Side Scan Sonar towed Simrad MS992
differential and RTK satellite positioning systems
Sippican XBT MK21 bathythermograph system
CTD profiler with rosette system Ocean Seven 316 used for water sampling at different depths
Van Veen buckets
Sindel weather station

The ship is equipped one survey motor-boat for coastal and shallow water surveys fitted with:

single beam Simrad EA400 (38 e 200 kHz)
multi-beam echo sounders Simrad Em3000 (300 kHz)

Ships

Marina Militare - Ninfe class
Name	Pennant number	Laid down	Launched	Commissioned	Motto
Aretusa	A 5304		9 May 2000	10 January 2002	Arethusa undis prospicit
Galatea	A 5308		7 June 2000	10 January 2002	Felix Galatea vivas

References

↑ "The Ninfe Class". Intermarine.it. Retrieved 2016-11-21.
↑ "Idrografiche costiere - Marina Militare". Marina.difesa.it. Retrieved 2016-11-21.
↑ "Aretusa - Marina Militare". Marina.difesa.it. Retrieved 2016-11-21.
↑ "Navy Installs New Multibeam Echo Sounders". Marinelink.com. 2003-12-18. Retrieved 2016-11-21.

Ship classes of the Marina Militare

Aircraft carriers	Cavour Giuseppe Garibaldi Trieste

Amphibious transport docks	San Giorgio

Destroyers and frigates	Andrea Doria Durand de la Penne Bergamini Maestrale Soldati

Corvettes and patrol boats	Comandanti Cassiopea Sirio Minerva Esploratore

Submarines	Todaro Sauro SRV-300

Minesweepers	Gaeta Lerici

Auxiliary ships	Vulcano Etna Stromboli Anteo Marino Elettra Alliance Leonardo Magnaghi Ninfe Rossetti Simeto Bormida Panarea Gorgona Ponza GGS 1012 Atlante Ciclope RP 101 RP 113 RP 118 RP 125 Ercole Porto Cheradi Argo

Training ships	Amerigo Vespucci Palinuro Italia Orsa Maggiore Caroly Capricia Stella Polare Corsaro II

Floating dry docks	GO 59 GO 58 GO 55 GO 52 GO 22 GO 20 GO 11

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