East style cruising outboard boat.
Draft at DWL:
DE23 is the long cabin version of our NV23. She combines traditional styling
with an efficient, easy to build planing hull. She is not a true lobster
boat of the double wedge type or a pure fast planing hull. The hull type
is similar to what is now frequently called a picnic boat; a seaworthy
planing boat but the topsides are more in the Down East cruising boat
style. We kept the deep forefoot of the modern fast lobster boat hull
but the underbody is a true monohedron. This means that the transition
to planing speeds will be smooth without any excessive change of trim
and without the wasteful suction of warped bottoms running at an S/L higher
(S/L ratio is speed in knots divided by square root
of WL in feet. Displacement boats are the ones with an S/L<1.3, planing
boats have S/L>2)
The Down East 23 will perform well at displacement speeds in
bad weather and run efficiently at moderate planing speeds with relatively
The Down East 23 has an enormous capacity: she can be loaded with up to
2,000 lbs of passengers, engine and gear.
provide 6' 2" (185 cm) of standing headroom in the pilot house, the
sole is lower than in our NV23. However, the cockpit floor is still well
above the waterline and self-bailing.
calculated top speeds with moderate load (displacement 2,600 lbs) are
50 HP: 25 mph
70 HP: 29.5 mph
100 HP: 35 mph
Compared to traditional lobster boat types, the Down East 23 hard-chine
vee bottom hull will not only be faster than the typical round bilge type
but also deflects spray more efficiently.
The reduced deadrise aft increases stability at slow speed or rest.
Compared to our HM19, the vee hull will pound less and give much better
tracking when running off a steep sea.
The soft riding vee hull requires more labor and materials to build but
this hull shape is required for more exposed waters.
She also differs from our faster planing hulls through her deeper forefoot
and generous skeg for stability and tracking.
boats transom is designed for a standard 20" shaft. The transom can
easily be modified to accept other shaft lengths.
New, August 2004: we added a closed transom version ot the plans package.
This allows to install the engine on a bracket and frees a lot of room
in the cockpit.
safe self-bailing cockpit is deep and wide: 5' long (1,5 m), 8' wide (2,40
m) and 28" deep (71 cm). The full height motor well bulkhead provides
excellent protection from following seas. The cockpit is self-bailing
but the cabin sole is lower than the cockpit. To keep the inside floor
dry, there is small step between pilot house and cabin, see the options
paragraph. The pilothouse offers standing headroom: 6' 2" in the middle
(185 cm), the forward cabin with two bunks has sitting headroom.
is room for a portable head under the vee berth. The dinette is can be
lowered to make a 34" (86 cm) wide berth.
The backrest of the steering seat can be hinged to extend the galley working
surface when lowered.
A sturdy samson post is welded to the forward bulkhead.
The Down East 23 is a composite epoxy-fiberglass-plywood boat. The
hull is build around a simple plywood core sandwiched between layers of
directional fiberglass in epoxy. This method produces a high quality fiberglass
boat using methods within the reach of any amateur builder. The hull is
assembled on a simple jig made from the bulkheads, frames and some temporary
a complete step by step description of the method here. The plans
show all necessary dimensions: all bulkheads, frames, molds and transom
dimensions plus accurate expanded plates dimensions for all hull panels.
No lofting, no need to measure from the jig as in plywood on frame construction.
We did all the calculations for you. The egg-crate structure is stronger
than traditional framing and the space under the sole, between the stringers,
can be filled with flotation foam to make the boat unsinkable.
cabin and pilothouse can be build from a sandwich composite if the builders
chooses that option.
There are several advantages to a foam sandwich superstructure. Lighter
topsides means better performance, improved stability and easier towing
on the road.
The plans show specifications for the two methods: cabin made of regular
plywood and epoxy and our sandwich panels. We can supply all the materials
for either method.
DE23 is easy to build: a plywood shell assembled the stitch and glue way
but fiberglassed on each side. No woodworking skills or special tools
are required. The plans include all dimensions and patterns to cut all
the hull parts flat on the shop floor. No lofting, no beveling, no scarfing:
the sides and bottom are cut from standard 4x8 plywood (122x244cm), joined
with a simple fiberglass seam. All seams are taped with fiberglass and
epoxy, see our "How To" section for details. These epoxy seams are much
stronger than the plywood. The DE23 is a large boat. She is not difficult
to build but we recommend to build a small boat first if only to become
familiar with the material and technique
There are so many possible options that we can not list them all.
outboard can be mounted as shown in a motor well or on a transom bracket.
show an open cockpit but the builder can easily add all kind of benches,
seats and other boxes.
pilothouse door can be modified to use a high drop down board and shorter
doors. This will allow to safely leave the doors open offshore in bad
is room for a small emergency outboard (kicker) on the transom.
plans show wide scuppers in the side but through transom scupper are
companionway can be left open or closed with doors.
pilothouse rear bulkhead can be left open and fitted with a roll up
canvas curtain bulkhead.
windshield can be hinged and lift.
and portholes are optional.
to the chain locker is shown from inside through a cut in the forward
bulkhead but the builder can also cut a deck hatch if he prefers.
capacity is ample with 34 gallons in one tank but there is room for
a second fuel tank.
DE23 can be made unsinkable with expandable buoyancy foam under the
sole and foam sheets glued under the gunwales for upright flotation.
August 2004: we added a closed transom version.
from our BOM)
BOM list materials based on our standard layout and includes a 15% waste
factor for fiberglass. For plywood, we use standard sheets 4' x 8' (122
x 244 cm). Please read the building notes and see the plans for detailed
specifications. Okoume or Meranti marine is preferred and cost starts at $ around
40.00 a sheet (1/4").
If the boat is fitted with an engine larger than 50 HP, the builder must
use marine plywood exclusively.
The plywood or foam for the pilothouse is not included in this BOM: add
4 to 6 sheets.
See our kits and add the cost of plywood bought locally.
The hull can be build in 80 hours but a finished boat will require 250
hours or more depending on the level of detail and the skills of the builder.
Visit our message board, help pages, tutorial pages and read our FAQ:
most questions are answered there.
Detailed drawings with all dimensions required to cut the sides, bottom,
bulkheads, deck, floors and all parts from flat plywood sheets: no lofting,
no templates required.
Nesting drawings for the best plywood layout with numbered parts.
drawings showing assembly and parts numbers for small hardware.
Plan and Profile
Full Size Pattern - Side Panel Tip
Typical Small Boat Electrical
building notes for this boat.
files reference list and more.
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7485 Commercial Circle,
Fort Pierce, Florida USA