Bluefin-21

BF-21-Silo-Large-Tailcone-660x240_2.png
Summary Specs Gallery

The Bluefin-21 is a highly modular autonomous underwater vehicle able to carry multiple sensors and payloads at once. It boasts a high energy capacity that enables extended operations even at the greatest depths. The Bluefin-21 has immense capability but is also flexible enough to operate from various ships of opportunity worldwide.

FREE-FLOODED MODULARITY – The vehicle design includes swappable payload sections and battery modules for in-field mission reconfiguration. Subsystems can be quickly accessed for rapid turnaround between missions and also allow for in-field maintenance, accelerating operational tempo.

EFFICIENT WORKHORSE – The Bluefin-21 is an efficient, deep-rated AUV able to execute surveys with demanding requirements typically addressed by larger, more cumbersome platforms. Its small size and ability to be launched and recovered from a simple A-frame or docking head allow it to take advantage of ships of opportunity.

ACCURATE NAVIGATION – The Bluefin-21 uses an INS to provide the best possible navigation accuracy. Dead reckoning drift is typically less than 0.1% of distance traveled, yielding higher quality data. USBL aiding further improves navigation accuracy.

AIR-SHIPPABLE – The vehicle, batteries and support equipment can be broken down and packaged into easily transportable sections, making the system ideal for time-critical and remote operations.

 

Bluefin-21

Applications

  • Offshore Survey
  • Search and Salvage
  • Archaeology and Exploration
  • Oceanography
  • Mine Countermeasures (MCM)
  • Unexploded Ordnance (UXO

Visit the Gallery tab for photos and data samples.

Diameter 21 in (53 cm)
Length 16.2 ft (493 cm)
Weight (Dry) 1,650 lb (750 kg)
Buoyancy ~ 16 lb (7.3 kg) net positive
Lift Points 1 (located mid-vehicle)
Depth Rating 14,763 ft (4,500 m)
Endurance 25 hours @ 3 knots with standard payload
Speed Up to 4.5 knots
Energy 13.5 kWh of total energy
Nine 1.5 kWh battery packs
Lithium-polymer, pressure-tolerant
Propulsion Gimbaled, ducted thruster for
propulsion and control
Navigation Real-time accuracy ≤ 0.1% of D.T. CEP 50
INS, DVL, SVS and GPS
USBL tracking with vehicle position updates
Antenna Integrated — GPS, RF, Iridium and strobe
Communications RF, Iridium and acoustic;
Ethernet via shore power cable
Safety Systems Fault and leak detection, dropweight,
acoustic tracking transponder,
strobe, RDF and Iridium
(all independently powered)
Software GUI-based Operator Tool Suite
Data Management 4 GB flash drive for vehicle data
Plus additional payload storage
Standard Payloads
(others available)
EdgeTech 2200-M 120/410 kHz side scan sonar
(option: EdgeTech 230/850 kHz dynamically focused)

EdgeTech DW-216 sub-bottom profiler

Reson 7125 400 kHz multibeam echosounder
For information on the BPAUV configuration, please download the Bluefin-21 BPAUV Product Sheet.
Bluefin-21 on deck Bluefin-21 - Testing
Bluefin-21 - Dive
Bluefin-21 during operations Bluefin-21 - Double Shipwreck Bluefin-21 Sonar Data