Navy vessels are exposed to numerous underwater threats like mines or other obstacles as well as coral reefs or shoals. These threats cannot be detected by radar or camera systems.

Wärtsilä ELAC Nautik closes this security gap with the next generation forward looking 3D active sonar Wärtsilä ELAC Vanguard enhanced. By combining 3D mine avoidance capabilities with a forward looking bottom mapping mode for tactical seabed survey, ELAC VANGUARD greatly enhances the navigation safety of any military surface vessel.

Wärtsilä ELAC Vanguard is available as a compact 70 kHz version for installation on a hoisting gear or a 30 kHz long range version for installation in a sonar dome or bulbous bow.

    • Detection of mines and obstacles in the water column or on the seafloor in order to avoid collisions
    • Navigation aid in narrow and shallow waters
    • Survey of the seabed ahead for operations in uncharted areas or regions where no current nautical charts are available
    • Adds information to sensor fusion in the CMS by continuously providing
      target data via Ethernet
    • Data recording and playback for mission analysis, tactical briefings or training and creation of sea charts
    Key Features
    • 3D forward looking mine and obstacle avoidance
    • Forward looking bottom mapping
    • Automatic target detection, tracking and alert
    • Data recording and playback
    • Open architecture based on OpenDDS middleware
    • Compact and retractable 70 kHz transducer array
    • Optional 30 kHz long range transducer array for installation in a sonar dome or bulbous bow
    • For new designs and refits
    • Meets military standards
    • Stand-alone or fully integrated solution
    Technical Data
    ELAC VANGUARD Hoisting Gear with Dual-Frequency Transducer Array WB 22
    Operating Frequency 70 kHz or optional 30 kHz
    Pulse modulation CW, FM selectable
    3D Mine and Obstacle Avoidance:
    The horizontal coverage 90° (pitch stabilized)
    The vertical coverage 12°, 25° (selectable)
    Bearing Accuracy ≤ 1.5°rms (in ship’s ahead direction)
    Maximum detection range
    70 kHz version 2000 m
    30 kHz version 5000 m
    Forward Looking Bottom Mapping:
    The horizontal coverage 60°
    Number of horizontal beams 32
    Depth Accuracy ≤ 1% of range scale
    Maximum water depth
    70 kHz version 600 m
    30 kHz version 1000 m
    Electrical conditions:
    Power supply electronic units 115 / 230 V // 50 / 60 Hz
    Power consumption electronic units max. 1200 VA
    Power supply hoisting gear 3 x 440 V / 60 Hz
    Power consumption hoisting gear max. 1500 VA

    Environmental Qualifications

    The ELAC Vanguard is a military system. The inboard electronic components are type tested acc. to the following standards:

    • EMC acc. to VG 95373 boundary class 3 (LGN19) or MIL-STD 461G (EE96)
    • Airborne noise level of the electronic units ≤ 55 dB(A)
    • Airborne noise level of the operating hoisting gear acc. to DIN 45635, ≤ 85 dB(A)
    • Degree of protection acc. to DIN 40050  IP 44 (LGN 19) and IP 23 (EE96)
    • Temperature:
      • ooperation:   0°C to +50°C                              
      • storage:       -35°C to +70°C
    • Corrosion test (salt) acc. to DIN 50021 (LGN19) or MIL-STD-810G (EE96)
    • Shock test acc. to BV 0430, issue 3/85
    • Vibration test acc. to BV 0440, issue 10/90 (LGN 19) or MIL-STD-810G (EE96)

    Transducer array WB 76 and arrays WB 62/ WB 63 have been tested under the following conditions:

    • Arrays shock tested at 160g / 2ms
    • Arrays pressure tested up to 5.4 MPa
    The Hoisting gear LAG 37 is of ruggedized industrial design and has been certified by GL.

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    Contact us

    Please fill in the form, we aim to respond within 1-2 business days depending on the enquiry. For an existing installation, provide all necessary details to identify the installation and the equipment. Fields indicated with an asterisk (*) are required. 

    Find your local Wärtsilä office here

    For technical support & service, please email at support@elac-wartsila.de.
    You can also contact during business hours at +49 431 883 260.

    Please email us with the Equipment Serial Number or the name of the vessel. Equipment Serial Number is taken from the equipment nameplate and includes all letters and numbers as given on the equipment nameplate.

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