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SENTINEL

Overview

Sentinel is a characterful 70ft traditional narrowboat built in 1976 by Brian Duvall and powered...

Sentinel is a characterful 70ft traditional narrowboat built in 1976 by Brian Duvall and powered by the much-admired Bolinder engine, perfectly complementing her classic lines and timeless appeal.

Stepping aboard from the bow, you are welcomed into a spacious saloon, followed by a well-equipped walkthrough galley featuring a freestanding cooker, washing machine, fridge freezer and ample storage. The light and airy main bedroom offers a comfortable retreat, while the impressive engine room houses the iconic Bolinder engine and generator enabling life aboard to be completely self sufficient. Completing the accommodation is a traditional boatman’s cabin with a single berth, full of charm and surprisingly spacious.

Sentinel is a rare opportunity to own a traditional narrowboat with an abundance of character and heritage.

Key Details

Length/beam 70ft No. of berths 2 + 2
Stern type Trad Engine Bolinder 1503
Hull builder Brian Duvall Last service January 2026
Fit out Not specified Blacking May 2024
Year 1976 Boat safety August 2030
Steel spec 10/6/6 Recent survey May 2024 (available on request)
CIN number:N/A
CRT number70584
License numberNot specified
Previous owners2+
Engine service historyJanuary 2026 (rebuilt in 1992)
Boiler service historyNot specified
SurveyYes – May 2024 (available on request)
BlackingMay 2024 – Needle gun preparation & 3 coats of bituminous protection
AnodesOk at last blacking – 18 fitted
Documentation availableBSS/Various user/installation manuals
Draft30in
Internal headroom5ft 10in (centre)
Saloon14ft 3in
Galley8ft 2in
Bathroom4ft 3in
Bedroom9ft 9in          Boatmans cabin: 8ft 3in
Engine room8ft 2in
EngineBolinder 1503 – rebuilt in 1992
HoursNot specified
GearboxBolinder
BowthrusterNo
WeedhatchQuick release under rear deck
Diesel tank capacity300+ litres
Extra/notes 
Central heatingNo
Solid fuel stoveYes – with back boiler supplying 2 radiators
Source of hot waterEngine & immersion heater
Water tankMild steel
Water tank capacity986 litres approx.
Extra/notesN/A
AlternatorSingle alternator
Batteries1 x starter 12V 80Ah & 6 x leisure 6V 225Ah
Lighting12V LED lights throughout 
Inverter/charger 1500W inverter & Victron 80Amp charger
Landline socketStern
Galvanic isolatorYes 
Extra/notesVictron solar panels 1055W/ Beta Marine 6.5KVA genset
Gas bottles3 x 13kg forward locker
AppliancesCooker only
Extras/notesN/A
InsulationSprayfoam
BallastConcrete slabs
Ceiling10mm T&G pine
Cabin sidesWhite painted ply
Hull sidesWhite painted ply 
FlooringOak effect vinyl
Side doorsYes – Saloon, bedroom & engine room
WindowsSingle glazed port holes 
Extras/notes 
Documentation available:BSS cert/various user & installation manuals
SALOON
Seating/furnitureSofabed
DinetteNo
Extras/notes42in Samsung Smart TV
GALLEY
CookerFreestanding New World 4 burner hob & oven/grill
Fridge/freezerFridgemaster fridge freezer 240V
MicrowaveNo
Washing machineYes – Indesit 7kg
Extras/notesShaker style kitchen with soft close doors & drawers
BATHROOM
ToiletPorti Potti – NEW
Waste tank capacityN/A
Bath/ShowerLarge shower with curtain screen
Vanity basinYes – with vanity cupboard, shelving & mirror
Extras/notes 
BEDROOM
Bed4ft fixed double  / Single bed in boatmans cabin 
DinetteNo
Extras/notesWardrobe & underbed drawers / 24in Sharp TV
TVSaloon 42in Samsung Smart TV in the saloon / 24in Sharp TV in bedroom
Covers 
  
Navigation equipmentVarious 

“PLEASE NOTE: The Boat Brokers are acting as Brokers only. Whilst every care has been taken in their preparation, the correctness of these particulars, is not guaranteed. They are not intended to, and do not form any part of any current or future contract. Prospective purchasers are advised to have an independent survey carried out by a qualified marine surveyor prior to completion of purchase.”