Concept for BELLE

 

We are attracted to most of the features and characteristics of the established traditional narrowboat designs that have been adapted for residential use, so we will endeavour to achieve the same with BELLE whilst also incorporating our own key requirements.  Achieving a balanced solution has been far from simple and we have had numerous debates and there have been many iterations of the layout drawing and the specification.  On the whole, we believe that we have incorporated most, if not all of our requirements without causing any major impact to the external appearance of BELLE and we have avoided loading the cost and/or causing any maintenance issues and/or presenting the boat builder with any challenges, etc.

 

Our key requirements; the features that are important to us - follow this link if you want to learn some more about any of the design solutions:

 

*      Stowage for at least one, but ideally two motorcycles

*      Maximum living space and storage space whilst avoiding clutter

*      Adequate access / egress during normal use and in emergencies

*      Maximum width hatch at the stern - to facilitate two standees

*      Stern seating for two

*      Maximum security for doors, hatches and windows

*      Good thermal insulation and weatherproofing

*      Office workspace

*      High levels of natural and artificial lighting for the interior

*      Avoiding the ‘railway carriage’ effect [long, straight corridors]

*      Accommodation for occasional guests

*      Adequate on-board electrical, gas, diesel and water supplies

*      Adequate dry and wet waste retention

*      Creature comforts [e.g. TV, radio, DVD, telephone, etc. ]

*      Washer/dryer installation

*      Adequate room heating and water heating and ventilation

*      Own space when required [e.g. for watching different TV channels, reading, etc.]

*      Comfortable bed

*      Adequate work surfaces and appliances in galley

*      Adequate power and manoeuvrability

*      Maintenance friendly layout

*      Adequate auxiliary equipment

*      Wow factor!

 

We learned a few things en-route that should be considered for all narrowboat builds:

 

*      Compliance with the EU Recreational Craft Directive

*      Achieving the requirements of the Boat Safety Scheme operated by British Waterways and the Environment Agency

*      Assuring a satisfactory general standard of workmanship

 

 

Specification for BELLE

 

In our experience, the average boat builders’ specification is sparse.  If you get anything at all, then it is usually in the form of a one page bulleted list of the main features, accompanied by a very low quality sketch of the layout and a few photographs to give you an impression of the standard of fit-out you can expect.  There may be a choice of colours and a few optional extras [e.g. adding a bow thruster, roof hatch, or upgraded electrical supply, etc.).  If you have seen an example of one of their boats and it suits your requirements either directly, or with a few slight alterations and the workmanship appears to be OK and the price and delivery are competitive, then that is fine – go for it.

 

However, if you have your own requirements and your wish is to maximise your chances of getting the boat that you want rather than an ‘off-the-peg’ design, at the right price and with an acceptable standard of workmanship, etc., then there is no alternative to putting in the effort and driving up a reasonably detailed specification and scaled layout drawing for reliably conveying your requirements to the builder.  Discussing this specification and layout drawing with several builders and viewing their work will eventually lead to a decision on where you will get the best deal.

 

This specification has already been updated on numerous occasions as a result of meetings with boat builders, finding new information on other websites, magazine reviews, obtaining and comparing product literature from various equipment suppliers, bursts of inspiration, etc.  The version presented here forms the basis for the order for BELLE.  However, there are a few areas that still require definition - we have elected to finalise these particular areas during the build in the belief that it will be easier to do so at that stage and that the risks of it all going ‘pear-shaped’ are low.

 

It should be noted that, whereas this specification is quite detailed, the content is focussed on our key requirements – dependence has been placed in the boat builders’ correct interpretation and application of the EU Recreational Craft Directive and the Boat Safety Scheme.  Inevitably, there will be opportunities to physically check the work during the build and to express a view and/or any concerns that some feature or other may not be in accordance with the requirements, or for that matter, not following accepted sound engineering practice.

 

You can view the layout and livery drawing that forms the basis of our construction agreement for BELLE and the concept drawing for the removable gunwale sections at the bow here.

 

 

 

Narrowboat Specification                         “BELLE” 

Issue 07

16/01/2006

 

This specification is for a 65’ long traditional style narrowboat and it forms the basis of a construction agreement between the builder; Sandhills Narrowboats Limited and the purchasers; Mr & Mrs Wells.

1.0

General

1.1

The boat shall comply with the EU Recreational Craft Directive

<version to be agreed>

 

2.0

Boat Structure

2.1

Overall dimensions, interior and exterior layout and location/routes of all gas, diesel fuel, fresh water, waste water, heating and electrical services and equipment, windows, doors and hatches and access panels, lockers, cupboards and controls to:

Layout and Livery Drawing dated 16 January 2006 ***

 

Nominal Length           19812 mm       (65’-0”)

Nominal Beam            2083 mm         (6’-10”)

Nominal Height            2159 mm         (7’-1”)

Nominal Draft              559 mm           (1’-10”)

 

***Note that this drawing will be updated in due course to show more detail for the gas, diesel fuel, fresh water, waste water, heating and electrical services.

 

 

2.2

Steel to comply with BS EN10025 – S275

 

2.3

Hull base – 10mm thick steel minimum.

Step on centre line of boat at stern at water level.

 

2.4

Hull sides – 6mm thick steel minimum.

 

2.5

Bow deck – 6mm thick steel minimum.

All walking areas of bow deck to be diamond pattern steel tread plate.

 

2.6

Cabin walls – 4mm thick steel minimum.

To include stringers inside as an aid for fitting out.

 

2.7

Cabin roof – 4mm thick steel minimum.

 

2.8

Sacrificial anodes (x4).

Located 2 at bow and 2 at stern.

 

2.9

Wooden stable style cabin doors with glazed upper halves at bow.

Fitted with Yale type locks.

Lockable crossbar arrangement also to be fitted over doors.

Steps at bow (hinged) into saloon with storage under.

 

2.10

Cratch and cover at bow (x1).

Cratch to include opening glazed doors (x2).

Including all fixings and fastenings.

 

2.11

Stowage for motorcycle(s) at bow.

Slotted gunwale sections at bow (on both sides), each approximately 2’-6” long to provide roll-on / roll-off access between bow well deck and canal side/bank using a suitable ramp (aluminium / steel diamond pattern tread plate).

Ramp to be diamond pattern steel (or aluminium) tread plate stowed on roof when not in use.

See Drawing ‘Concept for Removable Gunwales’ dated 29 January 2006.

 

2.12

Fixing points for shackles (x4).

Located in bow well deck area (two on each side of boat) – to be used for attaching retention straps for motorcycle(s).

 

2.13

Cabin door at stern (x1).

Steel doors with maximum width sliding roof hatch.

To be fitted with Yale type locks.

 

2.14

Recessed cockpit sides.

<quote as an option>