Design 160
24'0" EasyBuild Sloop

160
Preliminary Specification
LOA (inc. bowsprit) 7.670 m 25' 2"
LoD 7.315 m 24' 0"
LWL 7.000 m 23' 0"t
Beam 2.530 m 8' 4"
Draft 1.000 m 3' 3"
Displacement on dwl 2180 kg 4806 lbs
Ballast 780 kg 1720 lbs
Mainsail 15.13 sq m 163 sq ft
100% Foretriangle 13.13 sq m 141 sq ft
Furling Genoa 16.88 sq m 182 sq ft
Headroom – saloon 2.000 m 6' 6"
Headroom – galley 1.750 m 5' 9"
Headroom – WC 1.600 m 5' 3"
Headroom – Fo'c'sle 1.500 m 4' 11"
Yanmar Inboard Engine 6.7 kw 9 hp
Outboard (in well) 4.5-11.0 kw 6-15 hp
More specification info ...

Designed with cruising comfort in mind, the EasyBuild 24 can utilize all the benefits of the EasyBuild system to full advantage.

Click the thumbnails below to see more detailed plans – they will open as PDF's in a new window.

160 interior plan
Interior
160 sail plan
Sail Plan
160 lines plan
Lines Plan
160 visual
Concept

Design 160We are also modeling this design in 3D, building our virtual boat directly from models of the various components as they are drawn for CNC cutting. Stages of the modeling process are shown here. Extra images will be added as the process continues.

The boat is built on nine simple ring frames which are made sandwich-style from 12mm ply pre-cut parts. The parts are located accurately and easily by short lengths of dowel rod pushed through pre-bored holes. The layers are epoxy-bonded together, easily held down by weights or clamps.

The system gives a smooth finish to the inside edges of the frames and a stepped bevel on the outside edge to suit the hull, deck and superstructure angles. The little steps are easily filled by the epoxy bonding the skin panels on.

The longitudinal elements – backbone, stem, shelves, chines, carlings, and similar – are made sandwich-style like the frames, mostly on-the-job, and again with a stepped bevel on the outside edges.

The skin panels are joined into full lengths off-the-job using our proprietary finger jointing system which ensures accuracy and strength. They are located on the frames through pre-cut slots which fit over pre-cut nibs on the frames and hardened down by a wedge through a slot in the nib. Once the epoxy has cured, the wedges are removed and the excess nibs cleaned down flush with the skin.

Other elements such as the cockpit sole, sides and seats, engine beds, the interior furniture items, soles and so on, are located and fitted in a similar way, using slots or locating nibs.

Now let's take a look at some of the principal features of the design:

Comfortable Civilized Accommodation at Sea and in Harbour:
  • Full standing headroom (2.000m, 6' 6") in the main saloon.
  • Good headroom in the galley (1.750m, 5' 9") and WC compartment (1.600m, 5' 3").
  • Pretty good headroom in the fo'c'sle (1.500m, 4' 11")
  • Good visibility out when seated in the main saloon.
  • Separate private fo'c'sle with hanging locker; v-berths can make a double with simple infill.
  • Great sea-going galley with sink, refrigeration and plenty of lockers.
  • Separate WC compartment with toilet, washbasin and good lockers.
  • Spacious main saloon with good handholds and comfortable settees – designed with both harbour and at-sea use in mind. Settee's can convert to a double berth if required.
  • Comfortable quarterberths – absolutely the best berths when at sea.

Simplicity, Safety and Stability:

  • Easily accessible diesel auxiliary for safe and reliable power.
  • Optional – as an alternative – outboard motor can be mounted in well in cockpit.
  • Fixed ballast keel gives permanent stability with reasonable shoal draft
  • Transom-hung rudder is economical, simple and easy to maintain.
  • Straightforward no-hassle modern rig is simple, fast, easy to handle and effective.

Construction:

  • Soft-chine hull gives all the performance benefits of a chine hull aft with the sea-kindly easy-riding round-bilge hull forward.
  • All developable panels so everything can be cut from flat ply sheets.
  • Components CNC cut from 12mm ply gives fast build, accuracy, simplicity, economy and a professional finish.
  • Proprietary joining and assembly methods give super-fast and accurate set-up and build.

The accuracy of the pre-cut parts is the key to assembling the boat quickly and easily. Once the hull is formed, other parts mostly slot into place without a lot of complicated measuring and levelling. Most often, if something fits it is in the right place; if it doesn't, then it's not.

The parts will usually be "nested" by the CNC cutting company. This means that they nest parts together to get the most economical usage out of the material. This is also why we design each boat as far as possible to use one thickness of ply. So parts are not necessarily arranged in logical groups. Originally we thought this might be a problem, but somewhat surprisingly, it didn't turn out that way – parts are mostly easily recognizable and can be extracted one by one from their sheets of ply as needed. Parts can be labelled by the CNC cutting facility but this is usually quite expensive and we have found it not to be necessary. Our DXF files are arranged in logical groups, so you don't necessarily have to get everything for the whole boat cut at once, which does make part identification easier.

Note: This design is currently (June 2016) on hold as my colleague who is carrying out the modeling has had to take a break because of a career change. We will be returning ti the design as soon as we can.