Seaward 25 E18 Motor Cruiser

The latest Seaward Nelson 25 E 14 twin-screw all-weather motor cruiser at speed off the Needles

Seaward 25 E18 Motor Cruiser

The Seaward Nelson 25 has found favour for many years with discerning motor boat users and ex sailors alike. Now updated with a string of improved features, the latest Seaward 25 E18 is even more practical. The possibility to step aboard after breakfast, turn the keys and be in Cherbourg for lunch with maximum comfort and security will appeal to all those more used to the typical 12-14 hour English Channel crossings. Twin diesel inboard engines on shaft drives are standard on this craft, with a choice from the Yanmar 4JH4 series. The engines are installed completely independently of each other, each with their own fuel tank and electrical system. The deep 3/4 length keel with twin rudders and contra-rotating propellers make simple work of negotiating even the most difficult of berths. The 25 will rotate in its own length when one engine is put astern and the other ahead. This amazing manoeuvrability is not just the result of having two engines but is due to a combination of factors unique on a craft of this size and type.

View YouTube video of the Seaward 25

This craft can be supplied semi custom built or to the following standard specification:


Length Overall Mtrs. 7.74 ex platform
Beam Mtrs. 2.69
Draft Mtrs. 0.73
Air Draft Mtrs. (excl. Mast) 2.08
Approx Displacement 3.25
Cruising Speed (largest engines) 19
Top Speed (largest engines) 24
Fuel tanks (litres) 259
Water Tanks 120
Range (Normal cruising speed) 150
Design Category B


Round bilge semi-displacement type with flared bow and forward sloping transom with tumblehome. Varnished teak (or rubber) spray rails and all around 3″ rubber D fendering compliment the purposeful looks of the craft and provide extra protection when going alongside. Standard colour is Blue.

Deck / Superstructure

This is a G.R.P. moulding with substantial gunwales and wide non-slip decks incorporating a bevelled toe rail.  The superstructure has a large vertical flange that overlaps with a similar flange on the hull before being through bolted and laminated to the hull. Standard colour is White.

Engine and Stern Gear

The craft is supplied with a choice of engine options each based on twin inboard diesels with conventional stern gear and twin rudders.  Twin stainless steel fuel tanks of approximately 130 litres each provide a separate supply to each engine.  An emergency link valve is included to enable all the fuel to be available to one engine in the event the other engine should break down.

Electrical System

Two 90-amp hour batteries with isolating selector switches are fitted as standard.  Power circuits are protected by circuit breakers mounted in the instrument console. Standard electrical equipment includes:
•    Two 2-speed pantograph wipers
•    Horn
•    Navigation lights
•    Anchor light
•    Cockpit light
•    Six LED interior lights. Red night lights are optional
•    Two fuel gauges
•    Electric bilge pump with float switch
•    A 240 volt ring main with two power sockets
•    240 volt microwave cooker.

Fore Cabin

Access to the forward cabin is through a oak door from the wheelhouse now with a sliding hatch overhead that significantly improves the access, headroom and visibility in this area.
The cabin includes two V berths 6′ 2″ in length with a table that is also used as a berth infill.  A deep shelf surrounds the whole of the forward area giving ample stowage space. A bulkhead at the forward part forms the chain locker fitted with a watertight access hatch.
The ‘no gas’ galley unit with improved stowages is fitted to starboard and now includes an Avonite worktop fitted with a neat ceramic diesel fired hob and inset stainless steel sink with Avonite cover. The fuel supply to the diesel hob is connected direct to one of the main fuel tanks. A 240v microwave cooker is fitted as standard. Power for the microwave is via the ring main shore supply connection.
An inverter/charger is available on the optional extras list that will enable the microwave and ring main to be used when shore power is not available.
The new fully moulded heads compartment is to port containing a marine WC, hand basin and a cold water tap. Hot water is an option.
Ventilation is by way of two vents fitted on the coach roof, a deck hatch and six opening port lights.


The wheelhouse now allows 2” increased headroom over the older models. It is fully enclosed with two side and two aft slide opening windows and a stable type door giving plenty of fresh air.
Entrance to the wheelhouse is from the cockpit via a stable type door arrangement.   The steering, engine controls and main instruments are all mounted in a new ergonomic GRP console moulding. A chart table/stowage locker is fitted to starboard with a hanging locker beneath.  Padded seats are fitted each side for the helmsman and navigator. These seats are fitted with adjustable sliders and turntables and are mounted on adjustable height pedestals.
The helm position is on the port side and can be fitted with the optional innovative and unique sit/stand helm position.
There is a pair of stowage lockers outboard of each of the wheelhouse seats. There is space available behind each seat for stowage of things like life raft and cool box.
There is a desk locker to starboard and there is a useful teak hanging locker underneath.


The cockpit is fully self-draining by way of drains through the transom fitted with non-return flaps. The sole has a built in camber sloping slightly downwards at the aft end to ensure full drainage.  There is easy access to the engines through the forward cockpit seats that have hinged tops, and access to the steering gear and fuel system under the aft seat locker that comes with a lift out stowage box.
There are lockers fitted port and starboard for general stowage.
The cabin table can be easily transferred and set up in the cockpit area for al fresco dining or when entertaining.
The engine covers form seats that optionally may be converted to form two extra berths. This is achieved by way of a pair of infills fitted between the engine covers and aft cockpit seats. When not in use, the infills are made to stow away under the forward cabin shelf.
A tonneau cover is supplied as standard with the Seaward 25.
A versatile full canopy with three zipped openings and 6 windows is supplied as an option with the Seaward 25.
The canopy is designed to be used in the up position in bad weather to provide a cosy shelter from the elements. In sunny weather the canopy sides can be removed separately and with the rear section rolled up the canopy turns into a sunshade. The hinged stainless steel support frames allow the canopy to be unclipped from the wheelhouse and folded down to stow on the aft coaming.
Standard fittings include:
•    Heavy duty bow roller
•    Stainless steel pulpit
•    Three stainless steel mooring bollards
•    Hand rails on wheelhouse and coach roof
•    Chain pipe
•    Two fairleads forward
•    Mast
•    Four fender eyes each side
•    Anchor chocks
Grab handles are also fitted on the aft wheelhouse capping, to assist access from the cockpit to the side decks. An optional pilot type inboard handrail system or an extended pulpit are available as variations to the standard layout.


The craft is finished with oak veneered bulkheads and oak trim. Side and flush fitting overhead linings in the wheelhouse and cabin are of foam-backed vinyl. The shelf in the cabin is carpeted. Foam cushions are provided for the V berths and aft cockpit seat. The cabin sole is carpeted and covers are supplied for the port lights.  Owners are given choice of materials for interior and cockpit upholstery.


The following items are included as standard in addition to the equipment already mentioned.
•    Fire extinguishers:1-DP Manual + 2- FE1000 Automatic in engine spaces
•    Oak book rack
•    10kg anchor with 10 metres of 5/16 chain
•    55m length of anchor warp
•    4 x fenders with ropes
•    Set of mooring ropes
•    Steering compass
•    Slide opening wheelhouse side and aft windows
•    120 litre fresh water bag tank
•    Hand bilge pump (to back up electric pump)
•    Gaff and flag halyards
•    Teak flagpole with deck socket
•    Boarding ladder
•    Sacrificial anode (2 on twin engine models)
•    12m long shore power lead
•    Red antifouling with white boot-top
•    Tonneau cover

Safety Features

All Seaward 25’s are fitted with a number of outstanding safety features:-
•    Twin diesel engines
•    Each engine fully independent with it’s own stainless steel fuel tank, fuel filter and start battery
•    Conventional shaft drive with twin rudders
•    Emergency fuel link valve to divert both fuel tanks to supply either engine in case one engine should break down.
•    Twin batteries with facility to start either engine on either one or both batteries together or both engines off one battery.
•    Emergency steering
•    Automatic bilge pump with bilge alarm warning light
•    Contra rotating propellers with 3/4 length deep keel ensure the best possible course holding and manoeuvrability.
•    The boat will rotate within its own length in either direction with one engine ahead and the other astern.

Price List

Prices are afloat and in commission at Cowes including VAT @ 20%

The above boat prices includes as standard: bronze airfoil rudders, midship cleats (for springs), ceramic diesel fired hob, microwave cooker and shore power, two coats Hempel antifoul paint, full fuel tanks, launching, commissioning and free delivery by sea to any Solent port.

The Seaward 25 comes with a comprehensive standard specification. The following optional extras enable you to customise your vessel if you so wish. Apart from the items listed we are able to supply and install most types of Raymarine electronic navigation aids and safety equipment

 Options PricesValid from January 2018SEAWARD 25 
1Engine option 1Twin 4JH CR57HP£123,037
Engine option 2Twin 4JH CR80HP£128,410
Engine option 3Twin 4JH CR110HP£134,275
2MachineryRope CuttersPair of "Stripper" type rope cutters (includes for slightly longer propeller shafts) £1,356
Bow ThrusterVetus 35 kgf bow thruster with joystick control at the helm£3,970
3SystemsTrim TabsTrim tabs£1,312
Interceptor systemsVarious options availablePOA
WaterPressurised hot and cold water system via calorifier. Provides hot and cold water at heads and galley£1,043
Cockpit showerHot & cold cockpit shower facility (requires pressure water system to be installed).£234
Toilet options
Holding tankHolding tank system1, 61 litre holding tank, deck emptying facility and diverter valve from sea pump outIncluded
Holding tank system2, 61 litre holding tank, deck emptying facility, tank to sea hand pump out and diverter valve from sea pump out£405
Holding tank system3, 61 litre holding tank, deck emptying facility, tank to sea electric pump out and diverter valve from sea pump out£1,190
HeatingCabin heating via diesel hob blower lid£465
Eberspacher D2 Airtronic hot air heating system with two outlets.£2,280
4ElectricalCharger/InverterVictron 1600W/70-16 Multi-plus inverter/charger. Provides mains voltage on board when shore power is not available. Acts as a battery charger when plugged into shore power. Automatic operation installed with remote control panel£2,006
12v general purpose socket£90
BreakersSpare circuit breakers fitted and wired in each£70
Screen washScreen washers with electric pump.£194
Base Pack:1 x Radio/CD/MP3/Aux Socket.
1 x Pair Pioneer 17cm Speakers£416
Mid Pack:1 x Radio CD/Radio/USB/Aux
2 x Pair Pioneer 17cm Speakers£715
4.5Navigation and Communication equipment packs.Local PackPackage includes Raymarine 7 inch Es78 HybridTouch display this technology offers a choice of intuitive touch screen interaction with pinch-to-zoom or full keypad control with GPS, depth, speed & log i50 display & Ray50 VHF £4,472
Coastal PackPackage includes Raymarine 9 inch Es98 HybridTouch display this technology offers a choice of intuitive touch screen interaction with pinch-to-zoom or full keypad control with GPS, depth, speed & log via i70 colour display & Ray70 VHF with AIS Receiver£6,705
Offshore PackPackage includes Raymarine 9 inch Es98 HybridTouch display this technology offers a choice of intuitive touch screen interaction with pinch-to-zoom or full keypad control with GPS, Evolution autopilot system, 18 Quantum Radar, depth, speed, log & wind via i70 colour display, AIS Class B Transceiver & Ray60 VHF £12,824
5InteriorSoleTeak and holly laminated sole in forward cabin£557
Isotherm TB26 26 litre travel box type refrigerator. Low power consumption, only 2.5 amps£649
Leather seatsPair of K.A.B. suspension seats trimmed in leather£2,781
Seat lockerHelm seat to be locker mounted, with liferaft stowage etc£903
FridgeFridge mounted in locker under helmseat£756
FootrestSlide adjustable footrest with lock control£425
6ExteriorWindlassElectric reversing windlass with foot switch control from foredeck. Includes special self launch/ self stow bow roller, Bruce type anchor and 40 metres of 6mm chain£1,820
Keel shoeGRP keel shoe (necessary for craft that dry out on rough ground)£876
Legs'Yacht Leg' telescopic grounding legs including built-in stowaway£1,540
Stern platformDeluxe teak/stainless bathing platform with built in swim ladder£1,762
Plastimo teak/stainless bathing platform with built in swim ladder£1,169
DavitsWeaver snap davits for dinghy£917
Fender basketsFender baskets to hold 4 fenders£371
Rubber spray rails instead of teakNEC
Rail optionsExtended solid pulpit instead of standard foredeck pulpit£786
Pilot type handrail system instead of standard grab rails£683
Cockpit berthsConversion for twin berths in cockpit. Includes pair of stowaway extensions and engine box cushions£608
CanopyFull cockpit canopy instead of standard tonneau. Includes 6 windows and entrances from each side and the stern. Also serves as a sun awning£1,082
Rails and dodgersPair of cockpit rails with dodgers. (Tonneau cover is not supplied when this item is fitted)£854
Deluxe cushionsVinyl cockpit cushions, cream with navy piping, contoured high back and armrests£292
Large cockpit tableSupply extra large folding leaf cockpit table (nb, does not work as berth infill) £966
LiferaftFour person plastimo cannister liferaft in cradle on platform£1,550
Bow platePolished stainless steel bow chafe plate£349
Folding mastHinge down mast£321
7Paint and finishesFlexiteek pack.Margined Flexiteek to; Forward cabin sole, Forecabin stowage shelf, Sole in wheelhouse with two access hatches, Helm & crew footrest with Seaward 25 embossed, Cockpit sole, Engine boxes, rear cockpit seat locker and coaming steps£4,636

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