Thomas E. Colvin, NA Design 48' Ocean Cruising Auxiliary
3-masted Junk. She has a 5' Draft, and dual integral
keel cooling. There is lots of headroom for a six-footer.
This is a big, stable, tough, easily maintained, operator-friendly
boat with a great deck layout, and a capacity to cruise
anywhere in the world. Design anticipates easy crewing
by a couple, and single-handed under sail or power
is a viable option.
It is reported, due to health reasons, the owner has
suspended the project. All major steel construction
has been completed, including grinding of all hull
welds. The ship has also been sandblasted and painted.
well over 6,000 hours of construction into the Chinese
Junk at this point. The hull, deck, bulwark, and cabin
plate are high-strength low-alloy Corten Steel. The
frames, keel shoe and t-bar are A-36. All steel is
certified, and from USA Plants.
were cut with plasma to preclude any warping. All
welding was done with modern, inverter-based welding
machines. The hull plate welds were triple welded
with very high-quality filler metal. Generally, the
interior welds were made with a dual shield mig process,
and the exterior welds were made with a traditional
of the work necessary to complete the project is primarily
inside carpentry, plumbing, sail making and wiring.
Almost all major parts, such as portlights, shaft,
propeller, hatches, windlasses, masts, rigging, etc.
are ready to bolt on to the hull now that the sandblasting
and painting have been completed.
Included in the Package:
Three masts approximately 11,000 pounds of
50-pound lead bricks custom-sized for the keel space.
22 Lewmar #1 Ocean Series Portlights with interior
trim and screens. Cam action lock and friction hinges
to hold at any angle. Approximately 8 3/8 inches by
16 1/2 inches overall (7x14), Lloyd's approved. ("Ocean
Series" is the top of the line, Lloyd's rated, heavy
duty equipment.) (Lewmar #398920500) Cabin is prepared
to bolt these on.
22 Lewmar Ocean Series Deadlights for the above portlights.
These deadlights attach from the inside to the portlight
frame. Great safety feature, no crawling on deck in
a storm to fit deadlights. (Lewmar #360053919)
Two Bomar 24 inch by 24 inch cast deck hatches. These
cast hatches are the top of the line, custom ordered,
Bomar units, double hinged, with the ability to open
from two sides so that you may ventilate whether the
wind is from the bow or from the stern: they include
6 dogs/latches and the ability to be opened or closed
from inside or on deck, as well as to be locked from
the inside. (Base unit is #173, with custom nomenclature
for extra latches, dogs, double hinges and inside/outside
capability: l, D,O,W.) Deck is ready to bolt these
Two Maxwell Model VWC 3500 pound capacity windlasses.
One unit is hydraulic and one unit is electric. The
electric unit includes a foot switch, remote roving
hand held unit, reversing solenoid pack, and the breaker
isolator panel. Each unit has a manual option in the
event of power failure. Either unit can be converted
to either electric or hydraulic power, and all parts
are interchangeable. The purpose of different power
sources is to provide options in the event of on-board
Three drums of ACCO hot dipped galvanized hi-test
chain (grade 4) sized for the chain wheels on the
Maxwell windlesses: One 600 foot piece of 3/8 inch
hi-test chain with big links at each end. One 350
foot piece of 1/2 inch hi-test chain with big links
on each end. One drum of four lead chains to use with
rope anchor lines. Again ACCO hi-test chain with large
Two heavy duty 1/2 inch rated Maxwell deck
mounted chain stoppers.
Four genuine BRUCE anchors, chosen because
they have an almost 100% probability of immediately
digging in when they are employed. Two 176 pounders
and two 66 pounders. Bow and stern roller fittings
have been sized to accommodate these units. These
anchors are considered substantially oversize by most
authorities, but the very heavy duty windlasses and
the welded-on anchor handling gear are designed to
make them very easy to use, and thus, another significant
safety factor. Roller fittings have been galvanized
and welded to the hull.
The bow has a fitting just above the waterline to
engage one, two or three nylon lines to act as snubbers
on a chain anchor line.
6 big Vetus type WKY cowl ventilators with
dorade boxes, screens, and positive mushroom cap closure
with controls to open or close from inside the boat.
(Approximately 6 inch deck opening/ 5 1/2 inch air
passage per unit.)
The following were to be used in a pilothouse,
which you may or may not wish to add:
Two Lewmar Ocean Hatches size 60, with trim and screen.
(Lewmar #s 39660070, 367660 552)
Four Lewmar Ocean Hatches size 70, with trim
and screen (Lewmar #s 39670070, 367670552)
are 22 portlight and deadlight sets. There are 19
holes cut into the deckhouse for these portlights.
Winches:Two Lewmar 44 CSTs (Self Tailing)
Two Lewmar 30 CSTs (Self Tailing)
Solid Hatch Hinged Rope/ Chain locker foredeck
hatch: BAIER 15" x 24' aluminum hatch in a steel frame
welded to the foredeck.
Solid Hatch Hinged hatch in Forward bulkhead
separating the chain & rope locker from the forward
cabin. BAIER 24' aluminum hatch in a steel frame.
Rigging: Complete rigging set by Brion Toss,
author of the Rigger's Apprentice. All rigging designed
and constructed for simplicity, longevity, and tradition.
7 x 7 galvanized wire rope, spliced, seized, served,
and double served on the soft eyes. Includes closed
turnbuckles and other necessary hardware. Should last
100 years with care and looks great. (Most of this
was imported from Britain or Scandinavia.)
Masts: Bolt-to-deck fitting, aluminum, tapered
masts by P&K poles. (Fittings have been galvanized
and welded to the deck at the proper angle.)
Sailcloth: Approx 575 meters of nominal 24"
(61 cm) Duradon Extra tanbark sailcloth. Approximately
125 meters have been hot-knife cut by the manufacturer
lengthwise to widths of 11", 8", and 5' to provide
edge tape, batten pockets and/or batten reinforcement.
There is enough sailcloth for one complete set of
sails and left over for any reinforcing or patching
as experience dictates.
Sail Hardware: All the necessary press-fit
rings (100s) for the sails, as well as the mobile
task-specific hydraulic press and dies. Should be
enough for all sail and canvas work, as well as spares
while voyaging. Junk sails are very easy to make because
they are completely flat, however, they have a large
number of fittings, primarily rings, due to the battens
and manner in which the sails attach to the masts.
The rings and fitting gear are of the highest quality.
Propeller Lunenburg Foundry Bronze 26 x 22
Propeller 1 3/4 inch 316 stainless (Lunenburg Foundry)
Thrust Aquadrive antivibration unit
Shaft Log: Custom, electrically isolated, unit designed
by Tom Colvin and constructed by Lunenburg Foundry
to be oil/grease lubricated from the inside to preclude
the problems of sand and silt in the common water
lubricated bearing. 316 stainless. (Lunenburgfoundry.com)
Stuffing Box & Bearings: Heavy duty bronze
units cast by Lunenburg Foundry
Rudder Shaft: Unique hollow shaft allowing upper and
lower bearings to be constantly pressure lubricated
from inside the boat.
Rudder Bearings. A primary top thrust bearing
"hangs" the rudder shaft just off the lower thrust
bearing under normal conditions. In case of hard grounding
causing damage, the lower and upper bearings are designed
to accept substantial movement and still operate in
a useable fashion.
Hydraulic Marol MRB-IOO totally enclosed Rotary Actuator
(no shafts to corrode)
Steering Marol HRP-60 helm pump for main wheel.
Gear: JC-IOO ball joints for MRB-IOO
Exhaust: Basic design is for dry exhaust to
preclude the normal engine problems associated with
wet exhausts. May be converted to wet "north sea"
variety at the owner's option. Dual dry-type 304 schedule
40 directional option stacks are included.
is not included
in this sale.
Please read Motors and Machinery Disclaimer.
and Machinery Disclaimer
No statement of condition can
be made regarding motors, engines or machinery, whatsoever.
A photo may appear of the engine compartment and machinery,
but it is entirely the buyers responsibility to inspect
and determine their actual condition.
Nationwide transportation is
available through CertifiedMarineTransport.com
Custom Cradles and shipment to port for overseas transport
also supplied. Call Robert or Brian at (508) 478-0200
for logistics and quotes.