For more information, contact Shipyard Program Manager Jenn Kuhn at firstname.lastname@example.org or call 410-745-4980.
Click here to see our collection of photos covering CBMM’s shipyard programs.
Upcoming Shipyard Programs
January 20 – Family Boatshop
February 17 – Family Boatshop
March 10 – Family Boatshop
March 15-17 – Three-Day Bronze Casting
April 25 – Recommissioning Your Outboard Motor
April 28 – Recommissioning Your Inboard Motor
May 12 – Family Boatshop
Apprentice For A Day Public Boatbuilding Program
Runs most Saturdays and Sundays
Learn traditional boatbuilding under the direction of a CBMM shipwright. You can be part of the whole 24-week process or just sign up for those aspects of building a boat that you want to learn.
The current project is a private commission for a 12-foot Acorn skiff, designed by Iain Oughtred. This sailing rowing skiff will be lapstrake construction using glued Ockume. The program takes participants from lines and lofting to the final launch in July, 2018.
Journeyman Special: Choose any 4 classes for $150 for CBMM members and $200 for non-members Single classes: CBMM members $45 and non-members $55.
Class sizes are limited, with pre-registration needed. Must be 16 or older unless accompanied by an adult. To register or for more information, contact Shipyard Program Manager Jenn Kuhn at email@example.com or 410-745-4980.
Apprentice for a Day 2018 Schedule
6 -7: Lofting 12’ Acorn Skiff
13-14: Constructing the building molds
20-21: Constructing the building molds & stem
27-28: Stem & Keel
3-4: Stem, Keel, Transom
10-11: Stem, Keel, Transom, Planking
24-25: No AFAD
17-18: No AFAD
24-25: Planking, Fairing
31: Fairing & Flip boat over
1: No AFAD (Easter)
7-8: Quarter Knees & Breast hook
14: Floors, Gunwales
21: Floors , Gunwales
28: Daggerboard & Trunk
5-6: Daggerboard, DB Trunk, Seat Cleats
12-13: Floorboards, Seat Cleats, Thwarts
19-20: Thwarts, Stanchions, Mast Partner
26-27: No AFAD
2-3: Knees, Rudder
9-10: Rudder, Tiller, Brightwork
16-17: Spar Making, Bright work
23-24: Spar & Oar Making
30: No AFAD
1: No AFAD
7-8: Sailmaking, Rigging
Pintail is a 25′ Hoopers Island draketail built at CBMM and is now available for purchase.
The boat features a white oak duck walk, sapele coaming, sassafras-oiled floorboards, marine plywood battery box, and mahogany seats.
She also boasts a brand-new, two-cylinder 14 hp Yanmar diesel engine, electronics panel, steering gear, and systems hook up. Proceeds from her sale support the education, restoration, and exhibition programs of the non-profit museum.
For details and pricing, contact Jenn Kuhn at 410-745-4980 or firstname.lastname@example.org.
Each week we work on a specific topic which relates to the overall process of building a boat.
Full-sized drawing of the boat based on measurements or plans showing profile, half-breadths & body plan. Lofting details are the dimensions, shapes, and locations of all parts: stem, keel, expanded transom, molds as well as seats, mast centerboard, trunk and engine.
The body plan (cross-section) shapes are traced from the lofting to the mold stock. Molds become permanent frames in some boats, but often are temporary until the hull is complete. The expanded transom, keel and stem are built at the same time.
Accuracy and strength are vital. Level the strong-back, draw center and station lines, then fasten molds, stem, transom and keel.
Plank shapes are derived by lining off the erected molds, using battens to divide the area to be covered. Spiling is the process of measuring each plank from this shape. The shaped planks are dry fitted, smoothed and fastened in place.
AFTER BOAT IS UPRIGHT
Many components must be built and installed, such as knees, breast hook, in-wales, seat risers, seats, and centerboard trunk. Removable parts including spars, centerboard, rudder and tiller, oarlocks, oars, sails, hardware and rigging are all part of the process.
From the plans, the dimensions, the type of spars and rigging are determined. Timber for spars is milled, cut to dimension, assembled and then shaped. Many of these small, light sailing craft benefit from fitting a hollow wooden mast, which can be constructed using the “bird’s mouth” technique.
ADHESIVES AND FASTNINGS
Discussion of relative strength and durability of glues, caulking compounds and metal fasteners of all types helps us to determine the optimum combinations to ensure long boat life.
From the plans, we determine the overall dimensions of the sail, lofting it on the floor with the draft location and desired camber in mind. After adjusting each panel and sewing them together we adjust the outside dimensions adding curves and hollows where intended. Some of the final touches are hand sewn grommets and bolt ropes.