SIDE MOUNTED DOCKING SYSTEM FOR FAST RESCUE BOAT

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					                                   ASCE Ab Ltd.

SIDE MOUNTED DOCKING SYSTEM

                                       FOR

                           FAST RESCUE BOAT

                                       ***

                                   INSTALLATION
                                         &
                                   USERS MANUAL

ASCE Ab Ltd.
Norra Esplanadgatan 4 B
FI-22100 MARIEHAMN
Phone: +358-18-19966
Fax: +358-18-17696
E-mail: asce@aland.net
www: http://home.aland.net/asce/
                                                                                                                                   2


List of content:

SKETCHES ...........................................................................................................................3
   General Arrangement without Rescue Boat ........................................................................3
   General Arrangement with Rescue Boat .............................................................................4

GENERAL INFORMATION.................................................................................................5
   General description of the system.......................................................................................5
   Purpose of the Docking System..........................................................................................6

INSTALLATION OF THE DOCKING SYSTEM .................................................................8
   General Requirements for Installation.................................................................................8
   Installation onboard............................................................................................................8
   Testing the installed equipment ..........................................................................................9
   Required approvals of the installation.................................................................................9

USERS MANUAL ...............................................................................................................11
   Preparations prior to launching .........................................................................................11
   Launching the Docking System ........................................................................................11
   Release of rescue boat from Docking Unit ........................................................................11
   Docking of rescue boat into the Docking Unit ..................................................................12
   Hoisting the rescue boat with Docking Unit ......................................................................12
   Emergency operation in case of failure of Docking Unit ...................................................12
   Maintenance of the Docking Unit .....................................................................................13

ENCLOSED DRAWINGS...................................................................................................14
                                                                          3


SKETCHES

General Arrangement without Rescue Boat




       1. Floating elements               8. Lifting link
       2. Balancing rudders               9. Towage link
       3. Forward arc                     10. Safety net
       4. Aft arc                         11. Painter line
       5. Guiding unit                    12. Lifting wire
       6. Upper guiding plate             13. Lifting eye
       7. Lower guiding plate             14. Towing point
                                          15. Positioning strap for 13.
                                       4


General Arrangement with Rescue Boat
                                                                                            5


GENERAL INFORMATION

General description of the system

The docking system for safe launching and recovery of a Rescue Boat, has been developed to
avoid the well known risks of these operations during rough weather conditions. In the design,
great attention has been paid to the simplicity and easy handling of the system. Furthermore,
any approved lifting and painter appliance for Rescue Boat handling can be used for the
system since the docking system is only a complementary equipment to the standard
equipment used on ships for these purposes.

The Docking Unit consists of the following main parts (see enclosed General Arrangement
sketch):

Part No.:
    1. Two U-shaped polyethylene pipes with high impact strength and completely filled
        with polyurethane foam forms the buoyancy tubes of the Docking Unit. In case of
        damage to the buoyancy tubes, the foam water absorption is less than 5 %.
    2. Each buoyancy tube (1) is equipped with a balancing rudder to guarantee steady
        course during towage. These balancing rudders can be somewhat adjusted to give the
        Docking Unit a slight off-course direction from the towage line off-course towards the
        ships side to ensure less risky approach of the rescue boat.
    3. The forward arc of aluminium (3) binds the buoyancy tubes (1) together and is
        connected to the aft arc (4) and to the lifting eye connection box (13). The arc shape
        guarantees high strength against impacts against ships side.
    4. The aft arc of stainless steel (4) has the same function as the forward arc (3) as
        described above.
    5. The forward guiding unit in aluminium (5) binds the forward ends of the buoyancy
        tubes (1) together and integrates the guiding plates (6 & 7) for the Rescue Boat as
        well as the painter fitting (14).
    6. Guiding plate in aluminium (6) for fender list of rescue boat.
    7. Guiding plate in aluminium (7) for the keel of the rescue boat.
    8. Lifting link (8) between the Docking Unit and the rescue Boat. The short link is
        connected to the lifting hook of the rescue boat, which is released for undocking and
        locked for docking/lifting. The lifting eye is positioned by two stretchable straps.
    9. Towage link (9), which guarantees towage of the rescue boat in the Docking Unit
        when the lifting link (8) is connected.
    10. Safety net to prevent crew and rescued persons to fall out of rescue boat during
        impacts against ships side.
    11. Painter line (11), (towing line).
    12. Lifting wire from lifting appliance (12), equipped with swivel.
    13. Lifting eye with connection box (13). The lifting eye can be released from the
        Docking Unit by simply removing a safety pin.
    14. Towing point (14) for painter (towing) line.

Each Docking Unit is specially made for each type of rescue boat to fit the shape of the boat
and to (also in weight) fit the self-tensioning system of the lifting appliance.
                                                                                                6



Purpose of the Docking System

The Docking system has been designed to make launching and recovery of a rescue boat in
severe weather and sea conditions possible and to eliminate the risks of injury for the
operating crew and rescued persons during such operations.

The principle of the system is as follows:
   § The Docking Unit forms a protective “floating collar” around the rescue boat.
   § The lifting wire from the lifting appliance is fitted to the lifting eye in the Connection
       Box (13) and needs never to be released.
   § The rescue boat is fitted to the lifting system by applying the short lifting link (8) into
       the lifting hook of the rescue boat. I.e. the rescue boat is always lifted directly in the
       lifting hook without any lifting support from the Docking Unit.
   § The painter line is fitted directly to the towing point of the Docking Unit and is
       always, during the whole operation, fitted and needs never to be released or cared
       about.
   § The whole system (Docking Unit & rescue boat) is launched into the sea. The Docking
       Unit itself and the safety net (10) protect the rescue boat and the crew to fall out of the
       boat at impacts against ships side. When launched, the self tensioning system is made
       active and the Docking Unit and the rescue boat are towed by the mother ship. After
       starting the engine, the rescue boat is released from the Docking Unit by releasing the
       boats lifting hook and the rescue boat can then dock out of the Docking Unit to
       undertake its rescue mission.
   § During the rescue mission of the rescue boat, the Docking Unit can be towed
       alongside the mother vessel by deactivating the self-tensioning system and slacken the
       lifting wire enough to allow vertical movements due to the sea or lifted onboard into
       parked position. This is important for not overheating the hydraulic system of the
       lifting appliance by using the self-tensioning system too long.
   § When the rescue boat approaches the Docking Unit for docking, the Docking Unit is
       lowered into the sea and the self-tensioning system of the lifting appliance is made
       active.
   § The Docking Unit follows the motions of the sea and is in phase with the motion of
       the approaching rescue boat. When the rescue boat is fully inside the Docking Unit, its
       short lifting link is connected to the locked lifting hook of the rescue boat. The rescue
       boat can the be towed inside the Docking Unit alongside the mother ship or hoisted up
       to its parking position onboard the mother ship. The Docking unit forms the same
       protection for the rescue boat and its crew/passengers against impacts towards the
       ships side as during launching.
   § When the system is parked onboard the mother vessel, rescued persons can be taken
       care of and the crew can continue rescue operations.

The main advantages of the system, compared to traditional operating procedures, are as
follows:
    1. The painter line can be totally forgotten and all the risks connecting the painter line to
       the rescue boat during recovery operation is totally eliminated.
    2. The lifting wire is always in fixed position compared to the painter line thus avoiding
       any swinging of the free end of the lifting wire and accordingly prevents risks for the
       operating crew.
                                                                                 7

3. Due to the weight of the Docking Unit, the self-tensioning system of the lifting
   appliance can be activated during launching and recovery operation thus avoiding
   risks for the operating crew.
                                                                                              8


INSTALLATION OF THE DOCKING SYSTEM

General Requirements for Installation

   Generally all approved lifting appliances for rescue boats can be used for the Docking
   System, considering suitable painter and self-tensioning system.

   As the Docking Unit increases the required lifting capacity of the lifting appliance, it has
   to be considered when ordering the Unit or upgrading the lifting appliance as necessary.
   The Docking Unit must be specially adapted for each size and type of rescue boat to host
   the rescue boat efficiently during operation.

   The weight of the Docking Unit has to be adopted to the characteristics of the self-
   tensioning system of the lifting winch. The lowering force of the self-tensioning system
   has to be approximately 1/3 of the weight of the Docking Unit to function without
   disturbances in rough sea. Also the reaction speed of the self-tensioning system between
   lowering and hoisting is to be in accordance with frequency of sea waves or to meet a
   peak wave period of about 2 seconds.

   The painter system must be installed with a rising angle of maximum 30 degrees in order
   not to affect the efficiency of the self-tensioning system. At 30 degrees angle the lifting
   resultant is 50 % of the towing force.

   The speed of the mother vessel when the Docking System is operated is also of great
   importance as the towing force increases with higher speeds. As a general rule the mother
   ship is to be kept at manoeuvrable speed and not to exceed 5 knots.

   Specially worked out limitations and resulting forces are worked out by the supplier of the
   Docking System for each installation.

   The Lifting appliance must be tested with 2.2 × SWL (safe working load)overload as
   factory test and installation onboard tested with 1.5 × SWL statically and 1.1 × SWL
   dynamically.

Installation onboard

   When the Docking Unit is delivered it has to be tested together with the rescue boat on
   water to check that the boat fits the Docking Unit as intended and that the lifting links fit
   well to the lifting hook of the rescue boat. The system should then be lifted together out of
   the water and the following checks and adjustments performed:

      §   Check that the middle of the fender list on the rescue boat at its longitudinal centre
          of gravity meets the centre of the floating bodies. If not, the length of the lifting
          link may need to be adjusted to meet this requirement.
      §   Check the trim angle of the freely hanging boat and Docking Unit with empty
          boat, manned boat and manned boat with rescued persons. If necessary, the lifting
          point in the Docking Unit may need to be longitudinally shifted to obtain optimum
          desired trim.
                                                                                                 9

           §     Check that the fore part of the rescue boat fits well into the conical part of the
                 Docking Unit. If not, necessary adjustments to be carried out.
           §     Fit the painter line to the towing point of the Docking Unit

Testing the installed equipment
After the Docking Unit has been installed and properly adjusted to fit to the rescue boat, the
following test procedures are to be carried out:

   §  The lifting appliance is to be test loaded with 1.5 × SWL statically. The test is to be
      carried out preferably with test weight and with the Docking Unit and the rescue boat
      hooked off.
   § The lifting appliance is to be test loaded with 1.1 × SWL and the test weight to be
      lowered at full speed with winch break released and then engaged.
   § The self-tensioning system on lifting winch is to be checked by applying a test weight
      of same weight as the light ship weight of the rescue boat. The test weight is to be
      hoisted up and down with a secondary crane at a frequency of about 2 seconds. The
      lifting wire should at all time without slack and jerk, follow the up and down
      movements. If possible the corresponding self-tension lift and lowering forces to be
      measured by dynamometer.
   § The function of the painter system is to be checked.
   § All relevant certificates are to be checked.
The above tests are to be supervised by relevant authority.

After the above tests have been carried out and approved the following tests are to be carried
out:

    §      The Docking Unit with its rescue boat is to be lowered without crew into the water
           and hoisted back onboard into parking position while the mother ship is in port to
           ensure safe functioning of the lifting procedure.
    §      The same launching procedure is to be carried out with crew onboard. After the
           system has been launched, the rescue boat is to be released from the Docking Unit
           and reversed out of the Docking Unit. While the rescue boat is manoeuvring outside
           the Docking Unit, the self-tensioning system is to be activated to check that the
           Docking Unit is not lifted out of the water. The rescue boat steers back into the
           Docking Unit and docks with the Docking Unit. The whole system is lifted back
           onboard again. This test is also carried out while the mother ship is in port.
    §      The both above procedures are to be carried out in sheltered water while the mother
           vessel is steaming with less than 5 knots.
    §      The operating crew has to be well trained to be familiar with the system and then
           gradually start to use it during more demanding weather conditions.

Required approvals of the installation
The following approvals should be on hand after the System has been installed, adjusted and
checked:

       §       Appropriate approval certificates for the Rescue Boat.
       §       Appropriate works certificate for the lifting appliance including wires, shackles,
               swivels, etc.
                                                                        10

§   Appropriate approval certificates for the Docking Unit.
§   Installation approval certificates.
§   Handling competence certificates for the operating crew
§   Other documents as required by the appropriate approval authority
                                                                                               11


USERS MANUAL

Preparations prior to launching
Prior to launching the rescue boat and Docking unit, the following checks to be carried out:

   § The operating crew is to wear appropriate outfitting, survival suits, life vests, etc.
    § Check that painter line runs freely and is not worn.
    § Check the function of the painter boom and line system.
    § Check the fastenings on Docking Unit, rescue boat and lifting appliance.
    § Loosen the safety/parking lashings for the system.
    § Check the safety net.
    § Check the mattresses.
    § Engage the lifting appliance and check the function of it by short manoeuvres.
    § Embark the rescue boat with the operating crew.
    § Check radio communication and ensure people on bridge are aware of the operation.
    § Check the heading, wind/wave direction and the speed of the mother vessel (< 5
      knots).
    § Lower the rescue boat and the Docking Unit into the water.

Launching the Docking System

The following actions are to be taken during the launching procedure:

   §   During lowering, confirm by radio to the mother vessel that everything is OK.
   §   Check that the painter line follows freely during lowering.
   §   Be aware of possible impact against vessels outside.
   §   When the Docking Unit and the rescue boat reach the water, check that the painter line
       takes the towing force and activate the self-tensioning system.
   §   The engine of the rescue boat to be started.
   §   Check with the operating crew that everything is OK.

Release of rescue boat from Docking Unit
The following actions are to be taken:

   §   Apply slight thrust forward on the rescue boat, enough to slacken the towing line
       between Docking Unit and the rescue boat.
   §   Release the lifting hook in the rescue boat.
   §   Reduce thrust and let the rescue boat reverse out of the Docking Unit.
   §   Immediately when the rescue boat is aft of Docking Unit, apply hard outboard rudder
       and thrust to steer off the mother vessel in order to avoid impact or squeezing under
       the fender list of the mother vessel.
   §   Rescue mission is started.

Handling the Docking Unit during towage without rescue boat
The following actions are to be taken when the rescue boat has released from the Docking
Unit and commenced the rescue mission.
                                                                                                    12



   §       To avoid overheating of the hydraulic system, the self-tensioning system is to be
           deactivated immediately after the rescue boat has docked out from the Docking Unit.
   §       To avoid slacks and jerks in the lifting wire due to the motions of the sea, the lifting
           wire has to be given either enough slack or the Docking Unit has to be lifted out of the
           water. If lifted out of the water, the lifting appliance is to be manoeuvred inboard to
           hold the Docking Unit steady against the ships side to avoid impacts.
   §       Alternatively, if the rescue mission is time consuming, the Docking Unit may be lifted
           back onboard.

Docking of rescue boat into the Docking Unit
When the rescue boat approaches the Docking Unit for docking and recovery back onboard,
the following actions are to be taken:

       §    The Docking Unit is lowered back into the water and the self-tensioning system is
            activated.
       §    The rescue boat approaches the Docking Unit with a speed, exceeding the towing
            speed with 3-5 knots, and manoeuvres directly in between the buoyancy tubes.
       §    One crew member is prepared to immediately fix the lifting link into the lifting hook
            of the rescue boat. Once the rescue boat has docked and the lifting link has been
            fixed, it has to be double checked that the hook is in locked position.
       §    The thrust of the rescue boat is turned off and the towing of the rescue boat and
            fixing to the Docking Unit is then taken over by the towing chain in the Docking
            Unit.
       §    Radio signal is given to the mother vessel that the Unit is ready for hoisting.
       §    When hoisting has started the engine is turned off.

Hoisting the rescue boat with Docking Unit
When the hoisting of the rescue boat and Docking Unit has started, the following to is be
aware of:

    §      In severe weather conditions, be prepared for impacts against mother vessels side.
    §      Ensure rescued persons and crew are securely fastened.
    §      Check that painter line is not hooked to obstacles on the ships side.
    §      Keep constant radio contact with mother vessel during the whole hoisting operation.
    §      When the rescue boat and the Docking Unit have reached the parking position
           onboard, release the safety net of the Docking Unit and disembark rescued persons
           and crew.

Emergency operation in case of failure of the Docking Unit
If the Docking Unit, for some reason during towage awaiting the rescue boat, will be severely
damaged and not operational, the following steps are to be taken:

   § Manoeuvre the rescue boat into or next to the Docking Unit.
    § The damaged Docking Unit to be released from the lifting wire by releasing the
      locking pin in the lifting connection box. The lifting wire will now be freed for direct
                                                                                                13

        lift of the rescue boat. Be aware of possible swinging of the wire and that the self-
        tensioning system now cannot be in use!
    §   The painter line is released from the Docking Unit by releasing the fastening device
        and the Unit is left for free drifting aftwards (left behind).
    §   The Rescue boat now catches the painter line and fastens it to the towage hook. The
        rescue boat catches the free lifting wire and connects it to the lifting hook of the boat.
    §   The rescue boat can now be hoisted in a traditional manner back onboard.
    §   Alternatively, the Docking Unit can be released from the deck level of the mother
        ship by hoisting the Unit to relevant position.

Maintenance of the Docking Unit
The following routine checks are to be made to the Docking Unit on a monthly basis:

   §    Check that the buoyancy tubes are intact and that no water is dripping out.
   §    Check that steel bands around the PE pipes are properly fixed and not damaged.
   §    Check all welds and connections for cracks or loose bolts.
   §    Check the lifting links and its components.
   §    Check that the stretchable positioning straps for lifting hook are intact and functioing
        as intended.
   §    Check that the release pin in the lifting connection box is easily removable and that the
        release cover easily comes off.
   §    Check that the towing point is easily releasable.
   §    Check that the safety net is intact and its fastenings are OK.
   §    Check that all mattress protected spots are intact to avoid personal injuries.

For further information, please contact the manufacturer.