BEAR Flyer

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An overview of the barge emergency anchor release system used in Western Australia. Several WA companies have installed these units on their vessels for additional safety of cargo laded barges when being towed.

Text of BEAR Flyer

  • B.E.A.R. MkIIISystem Overview

    Step by Step Operation1. Operation of the BEAR begins with the

    selection of a barge on the tug/portable

    touchscreen control panel.

    2. Once a barge emergency anchor has been

    selected to drop, a wireless signal is sent to the

    BEAR unit to initialise the drop.

    3. The wireless signal is processed by the

    control electronics which then sends an operate

    signal to the electronic release module.

    4. The dual electronic release units then

    activate, cutting the restraint line which supports

    the anchor shank.

    5. The anchor shank drops over the edge of

    the barge, its momentum pulling the rest of the

    anchor out of its seating.



    PO Box 610, Fremantle WA 6160, Western Australia T: +61 8 93353250 F: +61 8 93353249 E: Visit us at


    The BEAR system consists of two primary

    elements: the Tug Release Unit (TRU) and the

    Barge Emergency Anchor Release (BEAR) structure.

    In turn, the anchor release structure consists of the

    anchor, supporting frame, electronic control

    systems (including batteries, solar charging panels

    and antenna) and electronic release system.

    In addition to controlling the release signal for the

    anchor, the control electronics provide feedback

    of the battery voltages, charging current, radio link

    and presence of the anchor to the TRU Power on

    the barge is supplied by three 12 V sealed, deep

    cycle batteries, which are charged during operation

    by dual 40 W solar panels and a 55 W vertical axis

    wind turbine (VAWT).

    A portable TRU control panel is also available

    which allows the anchor release to be activated

    from rescue craft or even from land should the

    BEAR be in range.