Detailed characteristics

Length overall: 84.6 m
Beam: 15.85 m
Draught: 5.05 m
Displacement: 3.550 tonnes
Gross tonnage: 3.559 UMS
Net tonnage: 1.067 UMS
Classification Bureau Veritas: I3/3E, open sea, ice II, AUT-PORT, oceanographic research
Stabilization: passive fuel tank
Crew: 17-30 depending on type of mission
Scientists and technicians: 30
Average operating speed during passages and cruises: 10 knots
Construction: 1989, Ateliers et Chantiers du Havre
Owner: IFREMER
Flag: France
Type: oceanographic research vessel
Call sign: FNCM
MMSI number: 227 222 00
Registry number: BR 732996 K
IMO number: 8716071

L’Atalante has 8 scientific laboratories, with a total surface area of about 130 m² :

L’Atalante has 4 winches: deep water, wired, dreding, hydrology and CTD, wired, and 3 frames: stern a frame, lateral coring, hydrology.

Stern a frame: CMU 22 T
Lateral coring a frame: CMU 10 T
Hydrology a frame : CMU 2,6 / 5,2 T
- Deep water, wired: Ø 19 mm - 8 000 m
- Dreding: Ø 19 mm - 8 000 m
- Hydrology : stainless steel Ø 10,8 mm- CMU 5 T, 8 000 m
- CTD wird : electrical conductor core cable Ø : 10,8 m- CMU 5 T, 8 000 m
1 well Travocéan (Ø 800 mm)
Deck crane: CMU 10 T
Travelling crane: CMU 4T

Network: 400 1Gbps connection points and wifi in work and living area.

Servers and data storage: VMWare virtualization, 20 TB of storage for scientific data and 4 stations for data processing.

Monitoring: Wall 14 connected screens via an Avocent analogue empty array to all the acquisition and operating stations.

Satellite Communications: C band VSAT (2.4 m) and FBB 500

Software (Ifremer):

Propulsion electric motors (1000 kW à 1500 tr/mn)
UPS current (2 × 60 kVA - 220 V - 50 Hz mono)
Main propulsion:
- 2 electrical synchronous engine CCP 138-53-8 (1100 kW - 150 tr/mn)
- 2 propellers - 4 blades
Auxiliary propulsion: 1 front propeller (360°)
2 rudders Becker
Diesel capacity: 580 m³
Freshwater: 261 m³

French oceanographic fleet