T H E C O N C E P T
The creation of this Open 40 design has been driven by a number of clients who have expressed interest in offshore/ocean racing but do not have either the time, budget or inclination to involve themselves in the 50/60 circuit, now almost wholly the preserve of professional skippers and corporate budgets.
Accordingly, Owen Clarke Design have been working to produce the next generation Open 40 design which will deliver all the thrills and spills of Open class racing but without excessive outlay. Conceptually, the Open 40 occupies the middle ground of the Open class spectrum - the Mini Transats and the 60s representing the extremes both in terms of cost and the commitment required to extract the best from them.
This Open 40 is no less extreme in terms of the performance profile but, in line with current thinking on all our Open boats, we are striving to produce a more all-round and balanced profile that is as potent upwind as it is down. This is achieved by a careful blend of technologies and the on-going development of proven solutions from our current Grand Prix boats. The resulting synthesis is a single/short-handed ocean racer that delivers security, pace and value.
T H E R A C I N G C A L E N D A R
In addition to national events such as the Bermuda 1-2, the following international events will have classes for 40’s
2006
January Cape Town to Rio
Fully crewed (every 3 years).
June Round Britain and Ireland Race
Double-handed.
September Around Alone
Single-handed.
November Route du Rhum
Single-handed.
2007
March Osaka Cup (Melbourne - Osaka)
Double-handed (every 4 years).
June AZAB
Double-handed (every 4 years).
November Transat Jacques Vabres
Double-handed, France to Brazil (alternate years).
T H E D E S I G N
By the very nature of this design some owners will wish to customise their craft and to this end we have drawn a generic boat with three basic options showing wheel and tiller steering as well as an optional cuddy/coachroof extension. There is scope for further personalisation, particularly with regard to the deck layout and interior arrangement.
P R I N C I P A L D I M E N S I O N S
Hull
LOA: 12.192 m
Length at waterline: 1.650 m
Max. Beam: 4.380 m
Draught: 3.600 m
Displacement (lightship) 3780 kg
Ballast: 1200 kg
C O N S T R U C T I O N
The structure will utilise both unidirectional and biaxial carbon fibre in ’wet preg’ form around a PVC foam core. By careful variation of skin material weight and appropriate core density we can deliver what we believe to be the most cost-effective structural solution without compromising safety and stiffness and yet retain the performance profile that is our trademark.
Hull penetrations at the keel and daggerboard are to be executed in solid laminate to ensure structural integrity under extreme conditions.
Canting Keel
The high tensile steel keel fin with lead bulb is driven by twin hydraulic rams to give precise and secure control over the angle of the fin.
Daggerboard
A single carbon daggerboard within its own case is positioned in front of the mast. Running through all around bearings, the board tacks automatically. The daggerboard is lifted by a manual pulley system via a deck-mounted lifting pillar.
Preliminary Drawings
Enclosed are preliminary drawings including:
1. General arrangement
2. Deck plan with cuddy and till steering
3. Deck plan with wheel steering option and short cuddy
4. Sail plan
S T E E R I N G S Y S T E M
Single tiller or wheel via lightweight quadrant with Vectran linkage.
Compasses set into deck only.
Auto Pilot
Provision to be made to accommodate a double pilot ram below deck.
Water Ballast
Two sea water trim tanks of approx 500 litres each are located under the cockpit sole aft of the companionway bulkhead. Fill/empty via a pair of custom 3” scoop/venturi valves. Valve operation is manual at valve.
I N T E R I O R
General
The interior arrangement consists of a central navigation station located forward and above the engine housing. Port & starboard are pipe cots. At the aft end of the engine enclosure there is a simple galley consisting of a single gas burner with integral supply, and a sink with foot-operated pumps for fresh and sea water.
Aft of the companionway bulkhead there are 2 further pipe cots to port and starboard.
Hatches
Internally the hull is divided into 5 watertight compartments affording maximum security and survivability both for the structure and the crew.
D E C K E Q U I P M E N T & F I T T I N G S
General
Halyards and lines running from the mast base will run in a channel in the coachroof top, exiting onto the side deck from where they will be led aft. A similar, but smaller, channel will carry the daggerboard control line aft to the mast base. All channels
have moulded cover plates with winch handle tightened hold-downs. There will be a forward deck hatch for access to the forward sail locker.
Winches
Harken winches: 1 x Halyard B40.2 STR (fitted on port side of mast)
6 x Primary B48.2 STR
Handles: Speed grip B10ASG
Hatches and Port Lights
1 custom flush hatch for foredeck.
2 Port lights in coach roof.
Deck Hardware
Deck hardware is to be Harken, Frederiksen, Lewmar or equivalent.
Jammers and rope clutches are to be Spinlock.
Deck Surface
Working deck painted non-slip.
Miscellaneous
Titanium pulpit, pushpit and stanchions. Stanchions to locate into composite sockets, 5 per side.
Lifeline wires - 1 by 19 wire –5mm.
Kevlar mooring chafe strips at the bow, amidships and stern.
All stainless steel will be Stainless Steel 316L. All aluminium will be marine grade aluminium, AL 5083, or AL 6061 and marine hard anodised
Jackstays – webbing.
M A S T A N D R I G
Mast
Carbon - tapered, deck stepped.
Spreaders and tangs.
Composite mast step.
Rig
P - 17.939 m
E - 6.457 m
I - 18.654 m
J - 5.044 m
Mast equipment
2 x pair spreaders, 20° sweepback.
The mast finish will be painted.
Mast top with sockets for mast top unit, Windex, Top light, VHF-Antenna, etc.
Masthead with sheave for Gennaker and main halyards. Jammer for Gennaker halyard on mast.
1 x Genoa halyard
1 x Solent halyard
1 x Storm Jib halyard
1x Main halyard.
Fittings and Conduit for wiring
Navigation lights
Foredeck floodlight
1x Radar reflector
Electronics cables and antenna.
Boom
Carbon fibre boom section into gooseneck at mast base.
Standing Rigging
Rod-Rigging in Nitronic 50, Navtec or Riggana.
Running backstays and forestays in PBO.
Running Rigging
All ropes Vectran, or equivalent.
Furler
Manual headsail furler will be endless line type attached to composite forestay.
Bow Pole
There will be a pivoting carbon fibre bow pole located on the stem.
Permanently mounted on a stem-head bearing with control quadrant set into deck rebate. Control lines led aft. Bobstay to chainplate fitting in front of stem.
S A I L S
1 x Main 82.00 sq m
1 x Genoa 40.40 sq m
1 x Staysail 26.20 sq m
1 x Storm Jib 9.00 sq m
1 x Code 0 85.00 sq m
1 x Code 5 120.00 sq m
1 x AP Spinnaker 170.00 sq m
Build Options
An extensive tender process encompassing boat yards, spar-makers, sail lofts & electronics suppliers in the US, Canada, Australia, New Zealand and the UK has delivered some interesting results.
By far and away the most cost effective option is an Australia build. The current high value of sterling and apparent weakness of the Australian Dollar make this an extremely attractive option for European and North American buyers.
Research indicates that a complete boat is available for around AU$720 000. This is approximately half the cost of an Open 50 to a similar specification. The price would include sails, electronics package, sea trials and shipping cradle on the dockside in Melbourne ready for export. The stock design and a project management package is included in this cost
Former BOC skipper Alan Nebauer, who is currently managing Kip Stone’s Owen Clarke designed Open 50 build at McConaghy Yachts, Sydney will be providing the project management services. For a UK or European build, project management services will be supplied by the UK office.
A preliminary timetable from the builder indicates that the build process will take approximately 7 months from point of order.
For owners who wish to have a boat constructed in another location we can undertake further tender enquiries, and also assist those individuals who may not wish to have a complete yard build.
There are undoubtedly opportunities for potential owners to make cost savings by cooperating in a series build programme, sharing tooling costs and through discounts from increased buying power on items such as hardware, electronics and sails. Initial expressions of interest should therefore indicate whether owners would be prepared to be involved in such a scheme.
T H E D E S I G N T E A M
Merfyn Owen, MRINA CEng Merfyn is a chartered engineer, a member of the Royal Institute of Naval Architects and a graduate of University College, London. He spent four years as an officer in the merchant navy including service during the Falklands campaign. He has a number of significant races in both multihulls and monohulls to his credit, including skippering Global Teamwork in the 1996/97 BT Global Challenge round the world race. Merfyn also has considerable build and project management experience including managing yachts in two Around Alone campaigns (formerly the BOC) and one Vendee Globe event. Allied with over 100,000 miles and two Cape Horn passages behind him, Merfyn’s input in the design office is very much ‘hands on’ as well as having a strong engineering and technology bias.
Allen Clarke, Allen trained at Falmouth Boat Building College and Southampton Institute, studying boat building and yacht design respectively. A boat owner and keen cruising sailor for many years, with a number of long passages and transatlantic crossings behind him, he has also competed in a number of significant races including the AZAB. Allen pursued a successful career as an interior designer before returning to yacht design and surveying and brings his considerable flair and talent to play in his work with a strong feel for the aesthetics in any project as well as the practical considerations involved.
Following the success of the Kingfisher project six members of staff have been taken on at Owen Clarke Design to help take their ideas and expertise forward on a number of major projects. Matt Wood, with a degree in Sail and Power Boat Design and many years’ boat building experience, is responsible for current Mini Transat designs, the development of the Open 40 design, and has a particular role in yard liaison, preserving the integrity of designs as they are built. Matt is based in the UK’s West Country office. Tim Sadler, a qualified engineer with 14 years’ engineering design experience heads up our Auckland office. Previously with Marten Yachts, Tim was the chief systems’ engineer for the superyacht Mari Cha. Also based in Auckland, Liz Tier is a qualified Naval Architect with a Masters degree in Ship Science and a keen cruising sailor. She has been responsible for the 3D design and modelling of the 20m ‘Supercruiser’ currently in build there. A Frenchman based near Marseilles, Nadj Geslain has a degree in Engineering and a Masters in Ship Science from Southampton Institute. An experienced racing yachtsman, Nadj has completed four Tours et Voiles campaigns – probably the toughest regatta in the world. His responsibilities cover tank testing and the development of our in-house velocity prediction programme (vpp).
Office: Lower Ridge Barns, PO Box 26,
Dartmouth, Devon, TQ6 0YG, United Kingdom
Tel: +44 1803 770495 Fax: +44 1803 770517
www.owenclarkedesign.com
E-mail: info@owenclarkedesign.com
Registered Office: 20-22 Bedford Row, London, WC1R 4JS, UK
Registered at Companies House as
Limited Liability Partnership OC301507
The creation of this Open 40 design has been driven by a number of clients who have expressed interest in offshore/ocean racing but do not have either the time, budget or inclination to involve themselves in the 50/60 circuit, now almost wholly the preserve of professional skippers and corporate budgets.
Accordingly, Owen Clarke Design have been working to produce the next generation Open 40 design which will deliver all the thrills and spills of Open class racing but without excessive outlay. Conceptually, the Open 40 occupies the middle ground of the Open class spectrum - the Mini Transats and the 60s representing the extremes both in terms of cost and the commitment required to extract the best from them.
This Open 40 is no less extreme in terms of the performance profile but, in line with current thinking on all our Open boats, we are striving to produce a more all-round and balanced profile that is as potent upwind as it is down. This is achieved by a careful blend of technologies and the on-going development of proven solutions from our current Grand Prix boats. The resulting synthesis is a single/short-handed ocean racer that delivers security, pace and value.
T H E R A C I N G C A L E N D A R
In addition to national events such as the Bermuda 1-2, the following international events will have classes for 40’s
2006
January Cape Town to Rio
Fully crewed (every 3 years).
June Round Britain and Ireland Race
Double-handed.
September Around Alone
Single-handed.
November Route du Rhum
Single-handed.
2007
March Osaka Cup (Melbourne - Osaka)
Double-handed (every 4 years).
June AZAB
Double-handed (every 4 years).
November Transat Jacques Vabres
Double-handed, France to Brazil (alternate years).
T H E D E S I G N
By the very nature of this design some owners will wish to customise their craft and to this end we have drawn a generic boat with three basic options showing wheel and tiller steering as well as an optional cuddy/coachroof extension. There is scope for further personalisation, particularly with regard to the deck layout and interior arrangement.
P R I N C I P A L D I M E N S I O N S
Hull
LOA: 12.192 m
Length at waterline: 1.650 m
Max. Beam: 4.380 m
Draught: 3.600 m
Displacement (lightship) 3780 kg
Ballast: 1200 kg
C O N S T R U C T I O N
The structure will utilise both unidirectional and biaxial carbon fibre in ’wet preg’ form around a PVC foam core. By careful variation of skin material weight and appropriate core density we can deliver what we believe to be the most cost-effective structural solution without compromising safety and stiffness and yet retain the performance profile that is our trademark.
Hull penetrations at the keel and daggerboard are to be executed in solid laminate to ensure structural integrity under extreme conditions.
Canting Keel
The high tensile steel keel fin with lead bulb is driven by twin hydraulic rams to give precise and secure control over the angle of the fin.
Daggerboard
A single carbon daggerboard within its own case is positioned in front of the mast. Running through all around bearings, the board tacks automatically. The daggerboard is lifted by a manual pulley system via a deck-mounted lifting pillar.
Preliminary Drawings
Enclosed are preliminary drawings including:
1. General arrangement
2. Deck plan with cuddy and till steering
3. Deck plan with wheel steering option and short cuddy
4. Sail plan
S T E E R I N G S Y S T E M
Single tiller or wheel via lightweight quadrant with Vectran linkage.
Compasses set into deck only.
Auto Pilot
Provision to be made to accommodate a double pilot ram below deck.
Water Ballast
Two sea water trim tanks of approx 500 litres each are located under the cockpit sole aft of the companionway bulkhead. Fill/empty via a pair of custom 3” scoop/venturi valves. Valve operation is manual at valve.
I N T E R I O R
General
The interior arrangement consists of a central navigation station located forward and above the engine housing. Port & starboard are pipe cots. At the aft end of the engine enclosure there is a simple galley consisting of a single gas burner with integral supply, and a sink with foot-operated pumps for fresh and sea water.
Aft of the companionway bulkhead there are 2 further pipe cots to port and starboard.
Hatches
Internally the hull is divided into 5 watertight compartments affording maximum security and survivability both for the structure and the crew.
D E C K E Q U I P M E N T & F I T T I N G S
General
Halyards and lines running from the mast base will run in a channel in the coachroof top, exiting onto the side deck from where they will be led aft. A similar, but smaller, channel will carry the daggerboard control line aft to the mast base. All channels
have moulded cover plates with winch handle tightened hold-downs. There will be a forward deck hatch for access to the forward sail locker.
Winches
Harken winches: 1 x Halyard B40.2 STR (fitted on port side of mast)
6 x Primary B48.2 STR
Handles: Speed grip B10ASG
Hatches and Port Lights
1 custom flush hatch for foredeck.
2 Port lights in coach roof.
Deck Hardware
Deck hardware is to be Harken, Frederiksen, Lewmar or equivalent.
Jammers and rope clutches are to be Spinlock.
Deck Surface
Working deck painted non-slip.
Miscellaneous
Titanium pulpit, pushpit and stanchions. Stanchions to locate into composite sockets, 5 per side.
Lifeline wires - 1 by 19 wire –5mm.
Kevlar mooring chafe strips at the bow, amidships and stern.
All stainless steel will be Stainless Steel 316L. All aluminium will be marine grade aluminium, AL 5083, or AL 6061 and marine hard anodised
Jackstays – webbing.
M A S T A N D R I G
Mast
Carbon - tapered, deck stepped.
Spreaders and tangs.
Composite mast step.
Rig
P - 17.939 m
E - 6.457 m
I - 18.654 m
J - 5.044 m
Mast equipment
2 x pair spreaders, 20° sweepback.
The mast finish will be painted.
Mast top with sockets for mast top unit, Windex, Top light, VHF-Antenna, etc.
Masthead with sheave for Gennaker and main halyards. Jammer for Gennaker halyard on mast.
1 x Genoa halyard
1 x Solent halyard
1 x Storm Jib halyard
1x Main halyard.
Fittings and Conduit for wiring
Navigation lights
Foredeck floodlight
1x Radar reflector
Electronics cables and antenna.
Boom
Carbon fibre boom section into gooseneck at mast base.
Standing Rigging
Rod-Rigging in Nitronic 50, Navtec or Riggana.
Running backstays and forestays in PBO.
Running Rigging
All ropes Vectran, or equivalent.
Furler
Manual headsail furler will be endless line type attached to composite forestay.
Bow Pole
There will be a pivoting carbon fibre bow pole located on the stem.
Permanently mounted on a stem-head bearing with control quadrant set into deck rebate. Control lines led aft. Bobstay to chainplate fitting in front of stem.
S A I L S
1 x Main 82.00 sq m
1 x Genoa 40.40 sq m
1 x Staysail 26.20 sq m
1 x Storm Jib 9.00 sq m
1 x Code 0 85.00 sq m
1 x Code 5 120.00 sq m
1 x AP Spinnaker 170.00 sq m
Build Options
An extensive tender process encompassing boat yards, spar-makers, sail lofts & electronics suppliers in the US, Canada, Australia, New Zealand and the UK has delivered some interesting results.
By far and away the most cost effective option is an Australia build. The current high value of sterling and apparent weakness of the Australian Dollar make this an extremely attractive option for European and North American buyers.
Research indicates that a complete boat is available for around AU$720 000. This is approximately half the cost of an Open 50 to a similar specification. The price would include sails, electronics package, sea trials and shipping cradle on the dockside in Melbourne ready for export. The stock design and a project management package is included in this cost
Former BOC skipper Alan Nebauer, who is currently managing Kip Stone’s Owen Clarke designed Open 50 build at McConaghy Yachts, Sydney will be providing the project management services. For a UK or European build, project management services will be supplied by the UK office.
A preliminary timetable from the builder indicates that the build process will take approximately 7 months from point of order.
For owners who wish to have a boat constructed in another location we can undertake further tender enquiries, and also assist those individuals who may not wish to have a complete yard build.
There are undoubtedly opportunities for potential owners to make cost savings by cooperating in a series build programme, sharing tooling costs and through discounts from increased buying power on items such as hardware, electronics and sails. Initial expressions of interest should therefore indicate whether owners would be prepared to be involved in such a scheme.
T H E D E S I G N T E A M
Merfyn Owen, MRINA CEng Merfyn is a chartered engineer, a member of the Royal Institute of Naval Architects and a graduate of University College, London. He spent four years as an officer in the merchant navy including service during the Falklands campaign. He has a number of significant races in both multihulls and monohulls to his credit, including skippering Global Teamwork in the 1996/97 BT Global Challenge round the world race. Merfyn also has considerable build and project management experience including managing yachts in two Around Alone campaigns (formerly the BOC) and one Vendee Globe event. Allied with over 100,000 miles and two Cape Horn passages behind him, Merfyn’s input in the design office is very much ‘hands on’ as well as having a strong engineering and technology bias.
Allen Clarke, Allen trained at Falmouth Boat Building College and Southampton Institute, studying boat building and yacht design respectively. A boat owner and keen cruising sailor for many years, with a number of long passages and transatlantic crossings behind him, he has also competed in a number of significant races including the AZAB. Allen pursued a successful career as an interior designer before returning to yacht design and surveying and brings his considerable flair and talent to play in his work with a strong feel for the aesthetics in any project as well as the practical considerations involved.
Following the success of the Kingfisher project six members of staff have been taken on at Owen Clarke Design to help take their ideas and expertise forward on a number of major projects. Matt Wood, with a degree in Sail and Power Boat Design and many years’ boat building experience, is responsible for current Mini Transat designs, the development of the Open 40 design, and has a particular role in yard liaison, preserving the integrity of designs as they are built. Matt is based in the UK’s West Country office. Tim Sadler, a qualified engineer with 14 years’ engineering design experience heads up our Auckland office. Previously with Marten Yachts, Tim was the chief systems’ engineer for the superyacht Mari Cha. Also based in Auckland, Liz Tier is a qualified Naval Architect with a Masters degree in Ship Science and a keen cruising sailor. She has been responsible for the 3D design and modelling of the 20m ‘Supercruiser’ currently in build there. A Frenchman based near Marseilles, Nadj Geslain has a degree in Engineering and a Masters in Ship Science from Southampton Institute. An experienced racing yachtsman, Nadj has completed four Tours et Voiles campaigns – probably the toughest regatta in the world. His responsibilities cover tank testing and the development of our in-house velocity prediction programme (vpp).
Office: Lower Ridge Barns, PO Box 26,
Dartmouth, Devon, TQ6 0YG, United Kingdom
Tel: +44 1803 770495 Fax: +44 1803 770517
www.owenclarkedesign.com
E-mail: info@owenclarkedesign.com
Registered Office: 20-22 Bedford Row, London, WC1R 4JS, UK
Registered at Companies House as
Limited Liability Partnership OC301507
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