Reflex Marine FROG-3 User manual

FROG-3 User
Manual
Original Instructions For FROG Models:
FS-01 (320) Standard
FS-01 (340) Arctic
FS-01 (370) Tropical
Rev 19 | Issued 14-05-12

User Manual
FROG-3
Rev 19 Page2
Reflex Marine Ltd
Offshore Access Specialists
Purpose of Manual
This manual contains general instructions for the operation and maintenance of the FROG-3.
Safe and proper use of the FROG-3 is the responsibility of the user after having taken due regard of
the information provided in this document.
The user must ensure that all safety measures as required by relevant legislation and by good
operational practice are utilised for operations involving the FROG-3.
Adequate training must be provided for all personnel involved in the operation of the FROG-3 before
the commencement of operational use.
For the purposes of this manual RML will be deemed to mean Reflex Marine Ltd.
Please retain this manual for future reference. Additional copies may be obtained by contacting
Reflex Marine Ltd or by downloading the latest manual revision from
www.reflexmarine.com/support.
Revision Approval
Revision
Date Issued
Status
Approved
Name
Signed
15.1
05 Oct 05
Revised
RML Operations
Manager
15.2
20 Sep 06
Revised
RML Operations
Manager
15.3
19 Sep 07
Revised
RML Operations
Manager
16
25 Jan 10
Revised
RML Operations
Manager
Paul
Wieczorek
17
10 Jun 10
Revised
RML Operations
Manager
David Brittan
18
03 Sept 11
Revised
RML Operations
Manager
David Brittan
19
01 May 12
Current
RML Lead Engineer
Production & Quality
Paul Onions
PO
All information disclosed in this document is the property of Reflex Marine Ltd except where otherwise stated.
Reflex Marine Ltd reserves all patent rights, design rights, manufacturing rights, copyright and sales use rights
thereto, and to any article disclosed within this document except where such rights are expressly granted to
others or where not applicable to vendor proprietary parts.
© 2010 Copyright Reflex Marine Ltd, All rights reserved.
Link to Index

User Manual
FROG-3
Rev 19 Page3
Document Revision & Control
To ensure that all changes to any of the documents contained in this manual are carried out and
distributed in a controlled and authorised manner:
i. Any proposed change in documentation must be submitted to the Reflex Marine Ltd Lead
Engineer –Production & Quality in writing for authorisation. This refers to all drawings and
documents contained in this manual.
ii. A record must be maintained of all documentation changes.
iii. A list of all revisions and amendments must be included in each controlled copy of this User
Manual.
iv. Upon revision of the FROG-3 User Manual, the manual will be distributed to the list of
document holders indicated below. The control, revision and distribution of this manual will
be the responsibility of the Reflex Marine Ltd Lead Engineer –Production & Quality.
Revisions
Rev
No
Reason For Revision
Safety Critical
Change
15.2
Old Sections 3.52 and 3.53
Operational guidance on night time operations and PPE recommendations.
Old Sections 4.1, 4.3, 4.4
Revision to inspection and maintenance terminology.
No
No
15.3
Old sections, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5
Revision to inspection and maintenance procedures to update part
numbers and offer sling set replacement frequency guidance (12 months).
Yes
16
The Frog Client Technical Manual has now been replaced with this FROG-3
User Manual. This manual is more focused on providing User Information
in a format consistent with the other Reflex Marine Ltd products. The
significant changes are listed below.
Re-organisation of all sections of previous CTM into a standard Reflex
Marine Ltd User Manual format.
Deletion of Risk Register and Risk review papers which are ancillary to the
manual. (These are still available as separate document downloads from
www.reflexmarine.com/support).
New Sections added :
Section 5.6 - Seating and Load distribution added
Section 5.7 - Luggage Storage
Section 5.8 - Seatbelt Operation
Section 5.9 - Rider instructions added
Section 5.10 - Emergency stop procedure added
Revised Sections
Section 6 - Inspection, Testing and Maintenance.
The whole section has been revised to align recommended inspection and
maintenance to the ‘degree of use’and provide guidance on unit lifetime
and retirement policy. Improved inspection checklist templates are
No
No
No
No
Yes
Link to Index

User Manual
FROG-3
Rev 19 Page4
included for a range of recommended inspection points.
17
Minor edits
Section 2.1 Model No from HC9-01 to FS-01
Section 5.12.2 vi: Change from remove nut to slacken nut
Corrections
Sections 6.5 & 6.6 and 6.7 –Inspection Check Lists Forms
Point 2 : delete “through the lifting bolt retaining sleeve” – not
relevant to Frog 3
Point 4 : Replace ‘alignment’ with ‘anti-rotation’
Point 5 : Delete word ‘clevis’ – not relevant for Frog 3
Point 6 : Change ‘alignment roll pin on older models’ to ‘keel plate
nut roll pin on older models’ - clarity
Point 6 : Delete ‘tamper proof seal’ not present.
Section 6.10.1 : Kit Listings
Critical Parts Kits for Low Temperature M40 Frogs : Add sling cover.
Restraint Harness Kit Numbers corrected
Include latest drawing FS-GA1 Rev B showing correct text for SWL = 330 Kg
Include latest drawing FS-GA2 Rev B : showing tamper proof seals fitted
Include latest drawing FS-GA3 Rev B : previously omitted showing current
seat arrangement
Include latest drawing F-ASY-11 Rev B ; change of word Ferrule to Thimble
Appendix C : Parts Listing
F -01 –049 : Buoyancy fitting button head screws : Correct the
material description to 304 Stainless steel
F-01 –221 : Seat assembly anti rotation bolt : Correct the material
description to 17-4PH 15% chrome alloy steel.
No
No
No
No
No
No
No
No
18
Overview of Major Revisions
Original Instructions added to cover page as per Machinery Directive
Alternative Operating Limit Methodology added
Clarified SWL and Passenger Loading Limitations (330Kgs and 270Kgs
limits)
New EC type examination and ABS PDA cert added
New ‘Ultra High’ Usage Category defined with corresponding
inspection frequencies.
Parts Kits updated and new kit numbers
The parts listings have been removed from the User Manual. Parts
listings will in future be available online (or directly from Reflex Marine)
, where the parts list for the serial number of each Frog can be
matched
Revised Sections
Section 2.1: FROG model numbers updated
Section 5.4.2: References to new drawing and part numbers
Section 5.7 Revised to advise that oversized luggage should be
transferred as a separate lift.
Section 5.12.2: Buoyancy reconfiguration diagram updated to remove
references to old P/Ns
NO safety
critical changes
occur in this
revision. All
changes are
enhancements
to the
documentation
and the advice
regarding Frog
3 operation
and
maintenance.

User Manual
FROG-3
Rev 19 Page5
Section 5.12.4: Torque setting for buoyancy fixings added.
Section 6.3: Inspection frequency table has been updated to include an
ultra-high usage category
Section 6.4:
The support drawings detailed in the guidance notes have been
updated to the new part numbers.
New separate anti-rotation fitting check added.
New separate spring check added
Diagram 4b corrected to include a tamper proof seal
Section 6.5:
New separate check for the anti-fouling bracket and shackle spacer
added
New separate spring check added
New alignment cross bolt check added
General formatting changes
Section 6.6:
Dye penetration test advise added to point 1
Back up eye torque setting added
Thread lubricant application requirements added to Keel Nut check
Separate anti-fouling bracket & shackle spacer check added
Separate spring check added
Separate sliding sleeve cross bolt check added
General formatting changes
Section 6.7:
Separate spring check added
Separate sliding sleeve cross bolt check added
Section 6.8
Load test held for 5 mins.
Section 6.8.2
Model numbers updated
Section 6.10.1
New part numbers for spares kits
Thread lubricant added to relevant parts kits
1 x tamper proof seal added to the parts kits that contain type 2
keel assemblies
Single slings have been replaced with new sling kits
Section 11.3
Parts lists have been deleted from the User Manual
Appendix B:
Drawings have been updated with new assembly drawings.
Drawings referring to previous Frog 3 models have been removed
to avoid confusion.
Appendix F :
New CE marking and ABS Type approval certificates attached for all
units beyond FS:412
19
Section 6.3 Table 3:
New ‘Very Low’ Usage Category defined with corresponding
inspection frequencies.
Load Test requirements also revised.
No
Link to Index

User Manual
FROG-3
Rev 19 Page6
Distribution List
Controlled/uncontrolled copies of this manual are issued to the following:
Reflex Marine Ltd
Ref.
Status
Issued To
Date Issued
Format
Master
Controlled
RML Truro
J Cryan
14 May 2012
Electronic
RML 1
Uncontrolled
RML Newbury
P Onions
14 May 2012
Electronic
RML 2
Uncontrolled
RML Aberdeen
S Watson
14 May 2012
Electronic
Notification of this manual revision is sent to the following:
Reflex Marine Ltd
Ref.
Status
Issued To
Date Issued
Format
RML 3
Notification
RML Website
J Strong
14 May 2012
Electronic
RML 4
Notification
RML Sales Team Coordinator
K Hallowes
14 May 2012
Electronic
Link to Index

User Manual
FROG-3
Rev 19 Page7
Table of Contents
Purpose of Manual..................................................................................................................................2
Revision Approval ................................................................................................................................... 2
Document Revision & Control.................................................................................................................3
Revisions .................................................................................................................................................3
Distribution List....................................................................................................................................... 6
Table of Contents....................................................................................................................................7
1 INTRODUCTION............................................................................................................................. 10
1.1 Scope..................................................................................................................................... 10
1.2 Introduction ..........................................................................................................................10
1.3 Safety ....................................................................................................................................11
Note: Competent Person ...................................................................................................................... 11
2 SPECIFICATION FROG-3................................................................................................................. 12
2.1 Specification Summary..........................................................................................................12
2.2 Design.................................................................................................................................... 13
2.3 Certification and Documentation .........................................................................................14
3 OPERATING PARAMETERS ............................................................................................................15
15
3.1 Introduction ..........................................................................................................................15
3.2 Operating Parameters - Sea State.........................................................................................16
3.2.1 Site Specific Frog Transfer Operating Parameters ........................................................17
3.3 Operating Parameters - Additional Factors ..........................................................................17
4 TRANSFER PLANNING....................................................................................................................18
4.1 Risk Assessment and Method Statement .............................................................................18
4.2 Communications ...................................................................................................................18
4.3 Information Exchange...........................................................................................................18
4.4 Operational Planning ............................................................................................................19
4.5 Briefings ................................................................................................................................19
4.6 Supervision............................................................................................................................19
4.7 Transfer Log ..........................................................................................................................19
4.8 Emergency Transfers.............................................................................................................20
4.9 Training .................................................................................................................................20
4.10 Night Time Operations..........................................................................................................20
5 OPERATING PROCEDURE ..............................................................................................................21
5.1 Pre-Transfer Activity List.......................................................................................................21
5.2 Lifting ....................................................................................................................................21
5.3 Landing..................................................................................................................................21
5.4 Crane Operator Guidance .....................................................................................................22
5.4.1 Use of Shorter Slings.....................................................................................................22
5.4.2 Sling Leg Arrangement and Observed Snagging Issue .................................................. 22
5.5 Use of Tag Lines ....................................................................................................................23

User Manual
FROG-3
Rev 19 Page8
5.6 Seating and Load Distribution...............................................................................................23
5.7 Luggage Storage....................................................................................................................24
5.8 Seatbelt Operation................................................................................................................25
5.9 Rider Instructions.................................................................................................................. 26
5.10 Emergency Stop Procedure...................................................................................................26
5.11 Personal Protective Equipment (PPE)................................................................................... 27
5.11.1 Personal Flotation Devices (PFD’s)................................................................................ 28
5.11.2 Immersion Suits ............................................................................................................29
5.12 Stretcher Mode.....................................................................................................................30
5.12.1 Converting FROG-3 to Stretcher Mode (Figure 7) ........................................................30
5.12.2 Stretcher Mode Conversion Procedure ........................................................................30
5.12.3 Positioning the Stretcher ..............................................................................................32
5.12.4 3-Seat Mode Conversion Procedure............................................................................. 32
5.12.5 Stretcher (Optional) Accessory .....................................................................................33
6 PERIODIC INSPECTION, TESTING AND MAINTENANCE .................................................................34
34
6.1 Introduction ..........................................................................................................................34
6.2 Definitions.............................................................................................................................34
6.3 Frequency of Inspection, Test and Maintenance..................................................................35
6.4 Pre-Operational Visual Check ............................................................................................... 37
6.5 Visual Inspection ...................................................................................................................39
6.6 Examination ..........................................................................................................................42
6.7 Post Load Test Visual Inspection...........................................................................................46
6.8 Proof Load Testing ................................................................................................................49
6.8.1 Load Test Procedure .....................................................................................................50
6.8.2 Inspection Data Plate ....................................................................................................50
6.9 Sling Replacement and Management...................................................................................51
6.9.1 Sling Set (Critical Part) Replacement.............................................................................51
6.9.2 Sling Set Management ..................................................................................................51
6.10 Spares Kits and Replacement Parts.......................................................................................52
6.10.1 Spares Kits.....................................................................................................................53
6.10.2 All Other Replacement Parts......................................................................................... 57
6.11 Unit Replacement Recommendation....................................................................................57
7 UNIT IDENTIFICATION ...................................................................................................................58
7.1 Product ID Numbers..............................................................................................................58
7.2 Part Numbers........................................................................................................................ 58
7.3 FROG-3 Serial Numbers ........................................................................................................ 58
7.4 Component Serial Numbers.................................................................................................. 58
8 HANDLING, SHIPPING AND STORAGE ...........................................................................................59
8.1 Dimensions............................................................................................................................ 59
8.2 Handling & Transportation ...................................................................................................59
8.2.1 Forklift...........................................................................................................................59
8.2.2 Crane .............................................................................................................................59
8.2.3 Securing.........................................................................................................................59
8.2.4 Inspection......................................................................................................................59
8.2.5 Preparation for Road Transport....................................................................................60

User Manual
FROG-3
Rev 19 Page9
8.2.6 Containerisation............................................................................................................ 60
8.2.7 Storage ..........................................................................................................................61
8.2.8 Feet Deformation During Storage.................................................................................61
9 APPENDIX A –TRANSFER LOG.......................................................................................................62
10 APPENDIX B –DRAWINGS.............................................................................................................63
11 APPENDIX C –PARTS AND MATERIAL SPECIFICATIONS................................................................70
11.1 Parts ......................................................................................................................................70
11.2 Definition According to Criticality......................................................................................... 70
11.3 Fastener Specifications .........................................................................................................70
11.4 Certification...........................................................................................................................70
12 APPENDIX D –FROG-3 MARKINGS................................................................................................ 71
12.1 Essential Marking Requirements ..........................................................................................71
12.2 Decal - Vinyl Stickers - Located on Outside of Buoyancy Units.............................................72
12.3 Decal - Vinyl Stickers - Located Inside of Lower Buoyancy Units..........................................72
12.4 Decal - Operating Instructions - Located Inside of Upper Buoyancy Units........................... 72
12.5 Decal - Operating Instructions - Located on Seat Back.........................................................73
12.6 FROG-3 Column Marking Plan .............................................................................................. 74
13 APPENDIX E –ACCESSORIES.......................................................................................................... 75
Skid Trolley....................................................................................................................................75
Strobe Light...................................................................................................................................75
Stretcher (MedEvac) .....................................................................................................................75
75
Protective Cover............................................................................................................................75
75
Rigid Luggage Box .........................................................................................................................75
Multi-Lingual Operational Briefing DVD’s..................................................................................... 75
14 APPENDIX F –INDEPENDENT CERTIFICATION .............................................................................. 76
14.1 EC Type examination certificate (from unit number FS 412 onwards).................................76
14.2 ABS Product Design Assessment Certificate (from unit number FS 412 onwards) ..............77

User Manual
FROG-3
Rev 19 Page10
1INTRODUCTION
1.1 Scope
This User Manual is for the three passenger capacity FROG-3 (Model FS-01).
Note: Throughout this manual the use of this symbol “ “ denotes safety critical
information.
1.2 Introduction
The FROG-3 Personnel Transfer Capsule (PTC) is a personnel transfer device designed to provide
increased passenger protection when carrying out the transfer of personnel between vessels and
installations.
Crane personnel transfers are carried out for a wide variety of reasons including routine, urgent
operational and emergency reasons. The FROG-3 can accommodate a stretcher to transfer injured
personnel in a protected environment.
The FROG-3 comprises the following two main assemblies; firstly, the stainless steel outer
framework containing polyethylene buoyancy panels, secondly, a spring-dampened seating
assembly mounted on a central column. All materials have been selected specifically to minimise
corrosion in the marine environment.
The outer framework protects passengers from impacts and contains the buoyant elements which
ensure the FROG-3 floats and is self-righting in water. At its base are keel weights which assist in
rapid self-righting.
The outer shell lands on three tripod feet that provide shock absorption and ensure that the FROG-3
is stable on uneven surfaces or when landing on a heaving vessel. The outer shell also has three large
open accesses that allow rapid unimpeded exit.
During transit passengers are seated and secured with full harnesses to protect them against
whiplash and falling. Seating is mounted on a sprung carriage to provide protection against heavy
landings.
The sling assembly is of a special design to prevent rotation.
Note: The regulations governing personnel transfer operations vary greatly from country to country and it is imperative
that operators of the equipment establish the relevant requirements for the area of operation.
Link to Index

User Manual
FROG-3
Rev 19 Page11
1.3 Safety
Personnel transfer is a safety critical activity. The following items must be observed to properly
control safe transfers.
i. Proper planning of the transfer operation is essential. Planning must include a risk
assessment and method statement which takes account of all environmental and
operational factors. Assessing the impact of these factors on operational risk is best done by
Competent Persons (see note below) experienced in use of the equipment and the local
conditions.
ii. It is imperative for the safe operation of the FROG-3 that each unit is periodically inspected
and tested in accordance with the procedures and schedules set out within this document.
iii. Operating parameters detailed in this document must be adhered to unless modified
following on-site risk assessment and method statement by competent, experienced
personnel.
iv. The FROG-3 must only be used with properly designed, maintained and appropriately
certified lifting equipment. (It should be noted that some national regulations require cranes
to be specifically certified for man-riding operations).
v. Supervisory personnel (including Deck Crews and Crane Operators) must be competent and
must only operate the equipment following proper instruction in its use. Crane Operators
should read the ‘Crane Operator Guidance’ contained within this document.
vi. Pre-operational checks as detailed in this document must always be performed prior to use
of the FROG-3.
vii. Transfer personnel must receive a proper briefing on the FROG-3 and the transfer operation.
viii. Transfer personnel must at all times be seated and properly strapped in using the harnesses
supplied.
ix. The FROG-3 must only be used as a personnel transfer device.
x. The FROG-3 must not be used as a work-basket.
Note: Competent Person
A Competent Person is a person who has appropriate practical and theoretical knowledge and
experience of the equipment. This will enable them to detect defects and weaknesses and to assess
their importance in relation to the safety and continued use of the equipment. It is essential that
the Competent Person is sufficiently independent and impartial to allow objective decisions to be
made.
Link to Index

User Manual
FROG-3
Rev 19 Page12
2SPECIFICATION FROG-3
2.1 Specification Summary
Model No.
FS-01 (320) Standard, FS-01 (340) Artic , FS-01 (370) Tropical
Payload
The Safe Working Load (SWL) of the Frog 3 is the total load of
passengers and luggage. SWL = 330 Kg(727 lbs).
The Allowable Passenger Load of the Frog 3 is the total
passenger load to be placed on the seats. APL = 270Kg (594
lbs)
Background: The safe working load (SWL) is relevant to the
selection of lifting apparatus and the approach to periodically
testing the unit to ensure integrity. The passenger load is
important, as this defines the ‘moving mass’ for which the
design of the Frog 3 suspension system is matched.
Frog 3 design assumes that 3 persons of 90Kg (198 lbs) are
loaded onto the seats, equivalent to 270 Kg of ‘moving mass’.
In addition to this, each passenger carries 20Kg (44lbs) of
luggage placed on the floor, 60 Kg of ‘static mass’. The
combined load is the SWL of 330 Kgs (727 lbs).
Or
1 person seated & 1 person in stretcher
Dimensions
Width 1
2200 mm
Width 2
2500 mm
Height
2900 mm
Weight
Max Gross Weight
815 kg (1796 lb)
Tare Weight
485 kg (1069 lb)
Manufacture
To ISO 9001:2008
Materials
Frame
SS 316 and A4 Stainless Steel
Central Column / Lift Eye
Grade 316 Stainless Steel
Lift Eye Connection Bolts
A4 Stainless Steel
Other Steel Components
SS 316 and A4 or A2 and Mild Steel Hot Dipped Galvanise
Buoyancy
Rotationally moulded MDPE shell with PU foam fill
Seats
GRP
Operating Temperatures
Standard Model FS-01 (320)
+50 deg C to -20 deg C
Arctic Model FS -01 (340)
+50 deg C to -40 deg C
Tropical Model FS-01 (370)
+50 deg C t0 +20 deg C
Link to Index

User Manual
FROG-3
Rev 19 Page13
Suspension
Springs
1 x 8,612 N @ 0.32 m
Dampers
None
2.2 Design
Verification
EC Type Examination.
ABS Design and Manufacturing Assessment
Design review by independent certifying authority Bureau
Veritas.
Manufactured to ISO 9001:2008.
National Technical Standards
UK, BS449: Part2:1969: The Use of Structural Steel in
Building.
UK, BS2830:1994: Suspended Chairs and Cradles for the use
in the Construction Industry.
Industry European Standards
EC Machinery Directive.
EN 1050, EN292 Parts 1 & 2.
Load Test –ILO152 / LOLER.
National Regulations
UK, PUWER / LOLER.
Impact Behaviour
The seating assembly is suspended on a spring assembly
designed to protect passengers from impacts up to 4 m/s.
This has been verified in full impact testing.
Other Features
Full height bucket seating.
Quick release seat harness buckle.
Full harness ensures passengers are secure.
Grab handles.
Stretcher protective frame and support base.
Secondary back-up slinging.
Angle of stability –35 degrees (1-3 passengers).
Link to Index

User Manual
FROG-3
Rev 19 Page14
2.3 Certification and Documentation
Each new build of the FROG-3 is supplied with a set of certification and documentation as specified
below.
Certification Pack (includes the
following)
EC Declaration of Conformity.*
Manufacturers Certificate of Conformance.
Manufacturers BS EN ISO 9001:2008 Certificate.
FROG-3 Load Test Certificate.
Sling set Load Test Certificate.
Back-up Eye Material Certificate.
Lifting Plug Material Certificate.
M16 Lifting Plug Bolts Material Certificate.
Seat Harness Certificate of Conformance.
3rd Party Inspection Checklist.
3rd Party Inspection Release Note.
3rd Party Inspection BS EN ISO 9001: 2008 Certificate.
*Note: For CE marked FROGs the EC Declaration of Conformity and the User Manual will be
translated into language of the country (EC Member state) in which the machinery is to be
used.
This manual makes reference to CE marking of the FROG-3, however there are a limited
number of FROG-3’s previously supplied without CE marking. The FROG-3 units with the CE
Declaration of Conformity are identified with a CE marking plate (see Appendix D). For non-CE
marked units please disregard all references to CE marking in this manual.
User Manual
1 x User Manual
Additional
Reflex Marine Ltd will retain copies of the above certification
and additional certification as specified below. If required,
the applicable certification below can be made available for
review by clients.
Material Certification for all Critical and Non-critical
Components.
Inspection and Repair History.
Weld Procedures / Welder Qualifications.
NDT approval (PCN / NDT Reports) (where applicable).
Manufacturing Signed Checklist and Route Cards.

User Manual
FROG-3
Rev 19 Page15
3OPERATING PARAMETERS
3.1 Introduction
The FROG-3 has been designed to ensure passenger safety even when operating in the most
demanding conditions.
There are a large number of factors that affect the safe conduct of all marine personnel transfers.
These include: crew skill and experience, met-ocean conditions, landing area, vessel station keeping
capability and response to sea conditions, visibility, line of sight, etc. A combination of many factors
will determine the risk involved in a transfer:
Vertical impacts
Passengers are protected during heavy landings at speeds of up to 4.0 m/s (13.1 ft/s) by the
properties of the feet, frame and spring-mounted seat base. These protect passengers up to
currently recommended operating limits as detailed in Section 3.2; Table 1.
Lateral impacts
Passengers are also protected from lateral impacts by the framework and seat harnesses. Lateral
impacts are only likely to arise due to sway caused by off-lead when lifting and fast slewing. The
passengers will be protected up to the 2 m/s (6.5 ft/s) maximum expected impact speed. The central
column may deform on lateral impact and there may be damage to other components and therefore
the equipment must be inspected after any impact.
Stability
The unit has a low centre of gravity and a tripod base, providing stability on uneven surfaces or on a
pitching / rolling vessel. The polyurethane coated landing feet are also a non-skid design keeping
grip on deck surfaces. The static angle of stability has been tested to 35 degrees, for a load of 1-3
passengers.
Control of Hoist Line
The FROG-3 is designed to stay firmly on the deck of the transfer vessel whilst passengers are
entering or leaving the capsule. The Crane Operator must maintain slack in the line upon landing to
allow for the vessel movement. The recommended limits in this section are based on the use of the
standard FROG-3 sling length of 30 ft. (9 m). For the use of shorter slings an additional risk
assessment combined with dry runs should be performed to establish safe operational routines and
weather conditions. (See Section 5.4 Crane Operator Guidance).
It is important that all environmental and operational factors are taken into account in the pre-
transfer risk assessment. Assessing the impact of these factors on operational risk must be done by
Competent Personnel experienced in use of the equipment and the local conditions.
Link to Index

User Manual
FROG-3
Rev 19 Page16
3.2 Operating Parameters - Sea State
The FROG-3 has an inbuilt damping system which prevents passengers from experiencing shock
loads up to relative landing and take-off velocities of 4 m/s (13.1 ft/s). A maximum recommended
sea state, or significant wave height, for the operation of the FROG-3 is determined by the maximum
relative velocity between the FROG-3 (or hook) and the landing deck.
The calculation for relative velocity used here is based on the European offshore crane standard, EN
13852-1:2004. Whereby the maximum anticipated relative velocity between a load and a vessel
deck, is given by the following;
Relative velocity = Hook velocity* + √ (Vessel deck velocity 2 + Boom tip velocity 2)
* Equal to 1.67 m/s (100 m/min, 330 ft/min) for lifts below 5 tonnes. Higher crane hook speeds may be available, and it
follows that the higher the available crane speed the higher the possibility of a heavy landing or take off. However, with a
qualified Crane Operator, it is considered unlikely that the FROG-3 will be landed at full hook speed on a deck rising at full
speed.
If there are concerns about heavy landings, operators may wish to consider the following methods to reduce risk of heavy
landings and take-off; dry runs without passengers, landing in centre of deck where less vessel movement, transfer of fewer
passengers to increase damping, hook speed indicator.
Table 1: Recommended Sea States for FROG-3
KEY

Low risk of high landing or take-off velocity and exceeding FROG-3 personnel damping.

Increasing risk of high landing or take-off velocity. Consideration of hook speed and all
other factors is recommended to ensure controlled landing and take-off. A dry run to
gauge risk (without personnel) is also recommended.

High risk of high landing or take-off velocity. Not suitable for routine operations unless
a specific hazard analysis can demonstrate otherwise.
In all cases, adequate planning and risk assessment must be performed.
Link to Index
Sig. Wave
Height
(m / ft)
Max. Wave
Height
(m / ft)
Fixed
Platform to
Vessel
Semi-Sub to
Vessel
FPSO to
Vessel
Vessel to
Vessel
≤ 1.0 m / 3 ft
≤ 1.9 m / 6 ft




≤ 1.5 m / 5 ft
≤ 2.8 m / 9 ft




≤ 2.0 m / 7 ft
≤ 3.7 m / 12 ft




≤ 2.5 m / 8 ft
≤ 4.6 m / 15 ft




≤ 3.0 m / 10 ft
≤ 5.6 m / 18 ft




≤ 3.5 m / 11 ft
≤ 6.5 m / 21 ft




≤ 4.0 m / 13 ft
≤ 7.5 m / 24 ft




≤ 4.5 m / 15 ft
≤ 8.4 m / 28 ft




≤ 5.0 m / 16 ft
≤ 9.3 m / 30 ft




≤ 5.5 m / 18 ft
≤ 10.2 m / 33 ft





User Manual
FROG-3
Rev 19 Page17
3.2.1 Site Specific Frog Transfer Operating Parameters
The operating parameters recommended above are based on the calculation method extracted from
EN 13852 Offshore Crane Standard and uses data representative of the North Sea. The chart also
assumes the Frog is loaded with the maximum allowable passenger load (APL). Operators may
develop site specific parameters with an evaluation of relative velocity. Such a study should
consider the motion behaviour of the offshore installation, the offshore crane and the supply vessel.
Further considerations may be given to the effects of shock absorbers, motion compensators and
lee-side effect where sea state is reduced. Such localised conditions may also be taken into account.
It is ALWAYS advised that for personnel transfer in marginal sea states, a dry-run without passengers
must be performed to verify the parameters are suitable for safe transfer.
In the event an Operator deduces site specific operating parameters, these must be carefully
embedded into the operating procedures in use and well communicated to all parties involved in the
transfer.
3.3 Operating Parameters - Additional Factors
Note 1: It is emphasised that users must not rely on these recommendations alone. Persons best placed to judge
the risk of specific transfers are the onsite personnel that have experience of the local conditions and
equipment to be used. All factors must be evaluated together in their pre-transfer risk assessment.
Note 2: Crews must conduct dry runs without passengers if there are any concerns about conditions to help assess
risk of transfer.
Table 2: Other Operating Parameters
Parameter
Recommendation
Wind Speed
40 knot (equivalent to 20 m/s).
The FROG-3 is very stable in high wind.
Limiting factor is usually crane operability or control of load.
Visibility
Crane Operator should have a clear view of the pickup and set down areas.
Vessel Motion / FROG-3
Stability
Pitch 10⁰, Roll 10⁰. (FROG-3 stable up to 35⁰ for a load of 1-3 Passengers in
static test).
Vessel Station-Keeping
Able to maintain position within a 5 m (15 ft) radius.
If a high risk of the vessel losing position exists, recommend disconnecting
FROG-3 for passenger embarkation.
Landing Area
Clear of obstructions, protrusions, trip and fall hazards.
Landing Area –Ice / Spills
Ice and spills must be cleaned from landing area prior to transfer.
Landing Area on Vessel
The FROG is 2179mm x 2516mm and RML recommends keeping ample space
around the unit for embarkation/disembarkation (1m entry and exit path).
Operators should take into consideration sea state, weather, vessel station
keeping. A risk assessment should be carried out by the operator but a clear
space of 6m x 6m is preferable.
Landing Area on Installation
Recommended minimum 4.0 m x 4.0 m clear space (13 ft x 13 ft) based on + 1
m entry and exit path all-round the FROG-3.
Crane Operator Experience
Briefing video within 1 month.
Local authority requirements for personnel transfer must be adhered to.
Deck Crew Experience
Briefing video within 1 month.
Passenger Training
Briefing video within 1 month.
Communications
Radio communication must be established between the Crane Operator and
the vessel Deck Crew and Master.
Crane Construction
Crane must be certified for lifting personnel and properly maintained.
Operating Temperature
Standard FS-01 -320 Units: +50 deg C to -20 deg C.
Arctic FS-01 (340) Units: +50 deg C to -40 deg C.
Tropical FS-01 (370) Units : +50 deg C to + 20 deg C
Link to Index

User Manual
FROG-3
Rev 19 Page18
4TRANSFER PLANNING
The key to safe operations is the familiarisation and participation of all the involved crew in the
careful planning of the operation.
The Operating Parameters detailed within this document are generic, therefore safe operating
conditions must be determined by onsite supervision with due regard to site specific equipment,
vessels and conditions, taking account of any local conditions and equipment.
Safe transfers require careful planning and supervision.
The following are recommended as a means of ensuring safe transfer operations:
4.1 Risk Assessment and Method Statement
A risk assessment and method statement should be completed by the responsible authority on
board the installation and by the transfer vessel Captain prior to the first transfer operation for the
specific installation and vessel. The risk assessment should be reviewed periodically and the method
statement amended in the event of any substantive changes to equipment, procedures or any other
factors considered relevant.
4.2 Communications
Communications are an important part of controlling transfer operations. Local communication
practice will vary from work group to work group. However, dedicated 3-way radio communication
channels must, as a minimum, be provided between the Crane Operator, vessel Master, and Lift
Supervisor. A suitable radio protocol must be agreed and adhered to. Contingency communications
using a loud speaker or deck tannoy must be available.
Standard hand signals must be used by Crane Banksmen, where required, to supplement the agreed
radio communications.
4.3 Information Exchange
The following transfer vessel information must be provided to the installation:
i. General layout including the landing area position.
ii. Limiting environmental parameters for vessel station keeping.
iii. Onboard marine personnel transfer procedures.
The following installation information must be provided to the transfer vessel:
i. Crane position and hoist speed.
ii. General layout including the landing area position.
iii. Limiting environmental parameters for crane operations.
iv. Onboard marine personnel transfer procedures including responsible persons.
v. Communications channels.
vi. Any relevant information regarding local currents, field operations etc.
Link to Index

User Manual
FROG-3
Rev 19 Page19
4.4 Operational Planning
An overall plan must be in place for the proposed personnel transfer operation which details all of
the relevant information:
i. Installation name.
ii. Vessel name.
iii. Number of personnel to be transferred - vessel to installation.
iv. Number of personnel to be transferred - installation to vessel.
v. Key personnel on installation.
vi. Key personnel on vessel.
vii. Installation crane to be used.
viii. Crane hoist speed.
ix. Requirements for visual inspections of equipment.
x. Vessel position and station keeping limits.
xi. Environmental limits.
xii. Current and forecast weather conditions.
xiii. Checklists to be used.
4.5 Briefings
Ensure that passengers and crews (both installation and vessel) are fully briefed prior to an
operation. It is recommended that video briefings are utilised for briefing transfer passengers
supplemented as necessary by verbal briefing on any relevant installation / vessel specific
information.
4.6 Supervision
All transfer operations must be properly supervised. All personnel directly involved in the transfer
operation should be appropriately qualified and experienced.
4.7 Transfer Log
Operational records must be maintained by both the installation and the vessel. Records must
include:
i. Time of vessel in position.
ii. Time of checklists completed.
iii. Time of commencement of transfer operations.
iv. Weather conditions.
v. Vessel motion (roll, pitch and heave).
vi. Any special conditions or circumstances.
vii. Number of passengers transferred to installation.
viii. Number of passengers transferred to vessel.
ix. Time of completion of transfer operation / vessel clear of installation.
x. Name of the Lift Supervisor.
An example transfer log is included in Appendix A of this document.
Link to Index

User Manual
FROG-3
Rev 19 Page20
4.8 Emergency Transfers
If a transfer must be carried out in poor conditions in an emergency then (where time permits) a
‘trial run’ must be performed without passengers to assess operating conditions and limits.
4.9 Training
Regular transfer drills must be carried out. RML recommend weekly training drills.
4.10 Night Time Operations
With the following controls in place it may be allowable for personnel transfers using the FROG
Personnel Transfer Capsule to take place during the hours of darkness:
i. The risk assessment for the task shall be comprehensively reviewed prior to commencing
operations. The lifting plan and risk assessment shall be approved in writing by the Offshore
Installation Manager or appointed deputy.
ii. The operator should have contingency to immediately rescue the passengers from the water
e.g. Fast Rescue Craft. Without fast rescue contingency personnel transfers should not take
place.
iii. The crane boom should be fitted with adequate floodlights to illuminate the crane hook and
FROG unit. The Crane Operator must maintain a clear line of view with the FROG unit at all
times.
iv. The take-off and landing areas should be illuminated to a level of at least 20 lux or greater.
v. The FROG unit should be fitted with a strobe light to allow clear locating by all parties.
vi. The hoisting, transit and landing paths of the FROG unit should be predefined in the lifting
plan and are adhered to.
vii. Radio contact should be maintained throughout the entire lifting operation between the
Crane Operator and the take-off and landing site.
viii. An unmanned trial run which covers, as a minimum, the take-off, transit and landing paths
of the FROG should be conducted prior to commencing personnel transfers. The Crane
Operator should confirm readiness to proceed on completion of the trial run.
ix. A non-visual based method of communicating with the lifted personnel should be in place,
e.g. radio or loudhailer, in the event of an emergency.
Link to Index