Technical Specifications

Shadowfax is an ocean going yacht of substance that has been in receipt of extensive care and attention by her two dedicated and enthusiastic owners since its construction. Through to the current day the vessel has been continuously upgraded resulting in lavishly enhanced internal and external specifications. Please select the relevant heading below for further information.

Key Data

Seastream 43 Mk III - No. 21

Official Number 725834 - Owners version with extensive customization, upgrades and equipment inventory.

  • Designer: Ian Anderson
  • Built: 1996
  • Port of Registry: London
  • Current Location: Teos Marina, Sigacik, Turkey
  • Length: 13.3 metres
  • Beam: 4.41 metres
  • Draft: 2.0 metres
  • Profile: Semi keel
  • Engine: 80hp. Perkins M90 (Speed Cruising: 7.5 knots)
  • Sail Plan: Cutter rigged (1320 sq.ft. standard) with various plans to choose and an additional Spinnaker
  • Propeller: SPW feathering 4-blade vari-prop
  • Bow thruster
  • Diesel Fuel Capacity: 220 gals (1000 litres)
  • Water Capacity: 125 gals (568 litres) + Watermaker
  • Espacher heating system

General Description

At number 21 this final version of an Ian Anderson designed vessel is a specialist, bespoke deck saloon cruiser which is both solid and powerful. Both the condition as well as the way in which the yacht is extensively equipped reflects the lavish attention to detail paid during its build and subsequent upgrades. Built in 1996, this cutter rigged yacht comes with an extremely lavish sailplan which carries an inventory of Hood and South West sails, along with several backup sails which have remained unused.

The yacht is powered by a robust Perkins M80 engine and a 4 bladed vari-propeller which can be controlled from two locations onboard; either by the helmsman from the aft cockpit helm position, or from the comfort of the deck saloon at the auto pilot and engine control position.

Below decks the imaginative layout chosen at build provides a vast, bright and well-ventilated deck saloon. The yacht is a true six seater with six berth accommodation offering great views all round, while the hand-built bright cherry wood finish shows off the joinery to the highest standard. The navigation area, situated opposite a large and comfortable seating area, is fitted with full-size chart table and pilot's swinging chair.

The galley and heads are well appointed throughout with Corian work surfaces, and also feature an interior boasting over 130 storage drawers and lockers. Many of these compartments contain tools as well as a remarkably comprehensive inventory of yacht spares, so there is no shortage of practical space to be found.

Beneath the sole of the saloon is a vast, internally gel-coated bilge area; there are no osmosis issues to be found on this yacht. The engine and most ancillary equipment become easily accessible through the removable soundproofed floor panels and, like the furniture, are built for easy removal to allow for routine maintenance or major works.

All power, navigation and communication systems carry redundancy - the latest addition being a Raymarine E80 plotter and display situated above and below decks, which is also linked to Autohelm ST50 equipment. A new ICOM DSC radio has also been fitted this season. An extensive list of sophisticated features and equipment are present on Shadowfax, such as a radar, power management system and forward-looking sonar. Further recent additions include a new outboard engine as well as a davit secured Avon dinghy.

Above decks the one-piece stepped Selden mast, boom and vang are fitted with rigging and deck gear of the highest quality, including massive Andersen winches and Sheafer roller furling systems. Access and egress to the yacht is by a light and strong Kevlar Multiplex gangway system that is superbly designed for bows or stern mooring. The inventory of spares and back-up materials onboard are more than sufficient to sustain safety and peace of mind when involved in local or extensive ocean voyaging.


GRP - unusually found with internal and external Gel Coat.

Hull professionally taken down to gel coat and recoated last year.

Vast bilge and engine area below cabin sole housing most ancillary machinery.

Hull fittings - s/s sea cocks and unique manifold to minimise skin penetrations.

Imaginative internal design with bespoke cherry wood joinery to highest order.


Engine Perkins M80 (80hp) serviced professionally each season.
  • Whitlock Marine Premier Reflex King Cobra system.
  • Autopilot Helm Pedestal and instrument console.
  • Joy stick control at saloon Autohelm Pilot seat position.
  • Borg Warner Velvet shaft drive transmission.
  • Aquadrive anti-vibration system.
  • Crane water lube stern shaft seal.
  • Shaft Lock - auto system.
  • SPW - 4 bladed vari-prop feathering propeller.
Cruising Speed 7.5 knots (max. approximately 9 knots).
Bow Thruster Vetus 3kW bow propeller.
Windlass Lofrans Leopard de Luxe.


Fore cabin two berths, main aft cabin with double berth and seat, extra window and spacious height shower in en-suite. Half-moon shaped settee in deck saloon with enlargeable table available, bookcase, dedicated lockers for surround sound system and TV monitor. Saloon portside is the main working area with Pilot seat and chart table with power distribution panels, communication/TV monitor and navigation systems. Superb internal storage throughout the interior. The galley is fully equipped from pans down to bottle opener.

Cooker Oven Grill
Fridge x 2 Chest Freezer Microwave
Washing m/c Double Sink Corian Surfaces
Cabin Heating Pressured Water System Hot Water Heater
Heads x 2 Shower x 3 Hand Basins x 2
Water Maker Macerator - Black Tank Grey Tank


The range and quality of the sail inventory (colour Egyptian Ivory) is impressive by any measure with some of the sails remaining unused since purchase.

Hood suite of sails that includes a large genoa, cutter and vertically battened in mast furling mainsail.

SouthWest suite of sails includes a reduced size yankee (2) that are designed to be used as a jib or applied together with 'twistle' for down wind sailing and a cutter sail.

Hood multi-purpose spinnaker that is easy to handle and easily our most versatile and favourite sail.

Hood Storm jib sail (unused).

Deck Gear

Cutter rigged featuring roller and in-mast furling. Massive winches and highly maintained rigging and furling gear throughout featuring:

  • Selden one-piece stepped mast and boom.
  • Andersen winches.
  • Schaefer 3100/2100 Jib Furling systems.
  • 'Twistle' and spars (3) for double yankee and spinnaker sails.

Electrical Power Systems

Battery Bank x 3 including: 4x110 Amp Service, 1x125 Amp Engine, 1x115 Amp Windlass & Bow Thrusters.

Adverc Battery Management System

Freedom Heart Interface: the solid state brains behind the auto battery charging and power management - 240/110AC & 12VDC distribution, and management of power from generator, invertor, shore power, hydraulic power, wind generator, solar energy system and twin engine alternators.

Link 2000 Controller and Battery Monitor (3 banks).

HFL 6KVa Generator extensively overhauled and maintained unit located in engine bay below cabin sole.

Solaro Solar Panel located on stern s/s frame over helm position.

Windhunter Hydraulic Self-Steering and Power system located at stern facilitating hydraulic and wind generated power for ocean crossings.

Navigation & Communication

Raymarine Raytech Navigator IV system recently integrated into Seatalk system with Type 300 Autopilot, ST 50 Tridata and Repeater, Depth and Multi, Navdata and GPS.

E80 Series display and chart plotter located at helm pod and chart table; an additional TV monitor and display at saloon helm position.

Dell laptop computer as useful support to Shadowfax systems e.g. equipment inventory, system diagrams, system operations discs, PC satellite, weather etc.

Echo Pilot forward looking sonar and duplicated depth readout (Autohelm primary system) located at aft helm position.

Furuno radar mounted on stern s/steel overhead framework with chart table display.

Riviera Compass at helm console.

Inmarsat 'C' Satellite communications Thrane & Thrane Maritime Capset Transceiver.

ICOM M411 DSC VHF Marine Transceiver: new and fitted this season with monitoring position at chart table and at aft cockpit helm position.

Entel HT 640 VHF Submersible Hand held transceiver: top of the range Entel HT series unit with wall mounted charging system.

Admiralty and Cruising Charts, Pilot Books and maps are available sufficient to cover all waters from UK to Turkey, the Carribbean and beyond.

Safety Equipment

Anchors include Bugle with 100 metres of chain, Fortress, Fisherman's and dinghy grappling anchors with stern mooring chain and rope.

Lokata EPIRB 406 - 2M.

Sea Marshall Personal Locator Beacons and tracker unit.

Plastimo Transocean 8 man fully certified life raft.

Seago Auto Inflatable Lifejackets and harnesses - 5 sets.

Protective Clothing: Musto foul weather suits x 4 sets, Seaspray suit x 1 set.

A full range of the usual rescue and recovery items from equipped flares and Grab Bags to fog horn.

Additional Inventory

Avon R260 dinghy fitted with oars, spray bag and davit lift points recently purchased new. Davit lift system.

Mercury 3.5 hl outboard motor also recently purchased.

Spares sufficient to sustain global exploits that are too extensive to list e.g. a complete set of brand new replacement halyards, sheets and ropes, spare propellers, filters and impellors for all engines and pumps..not to mention the suites of sails.

An extensive assortment of tools are to be included to cover all the usual maintenance and running repairs.