D. N. HYLAN & ASSOCIATES, INC. BOATBUILDERS COQUINA STUDY PLANS LOA - 6' " BEAM - 6" DRAFT, " board up, 36" board down WEIGHT - with rig, 50 lb HULL TYPE - round bottom lapstrake CONSTRUCTION - glued lapstrake plywood or traditional cedar over oak SUITABLE FOR - Somewhat protected waters TRAILERABLE - Yes SKILL REQUIRED - Skilled amateur LOFTING REQUIRED - No PLANS - PLANS SHEETS - PLANS DETAIL - Very detailed PLANS COST - $00.00 plus $0.00 shipping in US ALSO AVAILABLE: Photo CD ($50.00 plus $5.00 S & H) and Study Plans ($0.00 plus $.00 S & H) OTHER REFERENCES - Herreshoff of Bristol, Bray & Pinheiro, pp. 50, 5, 6, 6. "Getting to Know COQUINA" by Maynard Bray, WoodenBoat Magazine, No. 7, p. 76. Under license from the MIT's Hart Nautical Collections, Doug Hylan and Maynard Bray have collaborated to produce a highly detailed builder's package for both amateur and professional builders, as well as students of Herreshoff's work. Nathanael Herreshoff designed Coquina for his own use in the winter of 9, and used her for may years, perhaps longer that any other of his personal yachts. Herreshoff wrote in some detail of Coquina in his later life: "I sailed quite often, both summer and winter." Surely such a boat, used so much and remembered so fondly by a man of Herreshoff's means and experience, must have applications for today's sailors. PLANS - are fully detailed, and consist of sheets including Herreshoff's original construction drawing. Other sheets include sail plan, lines plan, original construction, glued lapstrake plywood construction, spars & rigging plan, building jig, and four sheets of full sized patterns and plank layouts. 53 Benjamin River Dr. Brooklin ME 066 07-359-907
SAILMAKERS NOTES DIMENSIONS ARE TO EXTENDED CORNERS OF SAIL HISTORICAL NOTES NO ROACH OR BATTENS IN EITHER SAIL MIZZEN SHOULD BE CUT VERY FLAT N. G. HERRESHOFF USED AT LEAST TWO OTHER RIGS FOR COQUINA. THIS DRAWING SHOWS THE SAILPLAN THAT HE FINALLY SETTLED ON. PARREL LINES SHOULD BE SLACK ENOUGH TO ALLOW GAFF, BOOM, AND BUNDLED SAIL TO SWING UP AGAINST MAST FOR STOWING. SAIL LACING, PARREL & THROAT CRINGLE LINES -- /" MAINSAIL THROAT DETAIL SCALE: 3" = ' MIZZEN SIMILAR EXCEPT FOR SINGLE PART THROAT HALYARD. LIGHT SAIL CLOTH IS RECOMMENDED -- 3.5 TO 5 OZ. THROAT CRINGLE SHOULD BE MOVED IN FROM CORNER TO PREVENT WRINKLE IN SAIL. SAIL STOPS -- PROVIDE 7 AT 0" AND TWO AT 50" AS NEITHER THE ORIGINAL RIG, OR ANY DRAWINGS FOR SPARS OR RIGGING HAVE BEEN FOUND, THE DETAILS SHOWN ON THIS DRAWING ARE BASED ON BEST GUESSES. DOWNHAUL & TACK CRINGLE LINES -- /" MAINSAIL TACK DETAIL SCALE: 3" = ' MIZZEN SIMILAR 3 SQ. FT. SMALL BRASS STRAP EYE HALYARD TURNING BLOCKS MAINMAST ONLY LEATHER LOOPS FASTENED W #6 X " WOOD SCREWS THRU FINISH WASHERS 7 SQ. FT. MIZZEN SHEET BRIDLE SEIZED AT THIMBLE BRONZE STRAP EYE (OMIT IF STEERING TACKLE IS INSTALLED UNDER DECK.) HOLE TO LEAD STEERING LINE THROUGH TRANSOM TRANSOM DETAIL SCALE 3" = ' PLANS DRAWN BY D. N. HYLAN RESEARCH BY MAYNARD BRAY /3/005 SAIL PLAN SCALE: " = ' OR AS NOTED SHEET OF
3/" PLYWOOD FASTENED TO BOTTOM OF LADDER FRAME FOR BRACING & TOOL TRAY. 36 " 6 0 6 TRANSOM REFERENCE LINE 9 7/ 0 " 0 " 9/6 " TRANSOM ALIGN X 6 TRANSOM BRACES ON THIS ANGLE. USE THESE LINES TO MAKE A TEMPLATE FOR LOCATING POSITION AND ANGLE OF TRANSOM. MOLD AT FRAME 0 LEAVE TOPS OF LADDER RUNGS /" DOWN TO ALLOW ROOM FOR CENTERLINE STRING & PLANING TOPS OF RAILS. NOTES ON LADDER FRAME & SETUP BUILD LADDER FRAME FROM DRY X X 6' STOCK. MOLDS AND FRAMES ARE CENTERED ON THE FRAME ASSEMBLE FRAME, SQUARE BY MEASURING DIAGONALS, STATIONS AND THE SAME HOLES USED FOR TEMPORARY AND ATTACH PLYWOOD END BRACES TO HOLD SQUARE. PLANK FASTENINGS WILL BE USED FOR FRAMES, WHERE APPLICABLE. POST FRAME OFF FLOOR TO CONVENIENT WORKING HEIGHT, THEN SHIM AND PLANE TOP OF RAILS TO BE STRAIGHT AND CUT SLOT FOR CENTERBOARD AFTER HULL IS PLANKED, LEVEL ACROSS. FASTEN SECURELY TO PREVENT MOVEMENT BUT BEFORE IT IS TURNED OVER. DURING SETUP AND CONSTRUCTION. FRAMES, FLOORS AND CENTERBOARD TRUNK ARE INSTALLED ATTACH A CENTERLINE STRING TO LADDER FRAME, AND AFTER THE BOAT IS PLANKED AND TURNED UPRIGHT. FIT MARK STATIONS ON TOP OF RAILS, MAKING SURE THEY AS MANY FLOORS AND FRAMES AS POSSIBLE BEFORE ARE SQUARE TO STRING. REMOVING MOLDS. PRICK THROUGH DRAWING WITH SHARP AWL ONTO PLYWOOD PATTERN. CUT OUT AND TRIM END TO FRAME STATION. SET THIS EDGE ON TOP OF LADDER FRAME WITH FORWARD END ON FRAME STATION. FRAME STATION /0/05 BUILDING JIG SCALE: /" = ' SHEET 7 OF
TOP EDGE OF PLANKS INNER STEM TOP OF SHEER STRAKE TRIM TOP OF INNER STEM TO THIS LINE LAMINATE STEM TO THIS LINE, PARALLEL TO PARTING LINE TOP OF LADDER FRAME FRAME STATION # FORWARD END OF KEEL THIS LINE CORRESPONDS TO THE HEIGHT OF THE SHEER AT THE INSIDE FACE OF THE TRANSOM. IT SHOULD BE SET 9 7/" ABOVE THE PLANE OF THE TOP OF THE LADDER FRAME. PINE STOPWATER FRAME STATION # CENTERLINE OF MAST TOP EDGE OF PLANKS PATTERN FOR INSIDE (LARGER) FACE OF TRANSOM. FASTEN TRANSOM BLANK TO SETUP AND BEVEL USING A BATTEN RUN ALONG STATION MOLDS. FOR GLUED LAPSTRAKE PLYWOOD CONSTRUCTION TRANSOM MAY BE CUT TO SOLID LINES AND NO GAINS CUT IN AFT ENDS OF PLANKS KEEL LAYOUT -- FOR GLUED LAPSTRAKE CONSTRUCTION "A" "B" "C" "D" LENGTH HALF HALF HALF HALF FRAME ALONG BREADTH BREADTH BREADTH BREADTH NUMBER KEEL HOG HOG BEVEL KEEL TOP KEEL BOTTOM 0" /" 5/6"+ (STEM) /" (STEM) 0 /6" /6" 5/6" 5/" 3/" 30 /" 3/" 5/" /6" /6" 6 50 /" 3/6" 7/" /" 70 /" 3/6" 3/6" " /" 0 90 /" 7/6" /" /" /" 0 /" /" /" 7/6" /" 30 3/6" /" /6" /" /" 6 50 /" 3/" /" 7/6" /" 70 /" /" /" /6" /" STERN 3/" 0" /6" /" D C D FRAME NUMBER 6 0 6 STERN KEEL LAYOUT -- FOR TRADITIONAL CONSTRUCTION "A" "B" "C" "D" LENGTH HALF HALF HEIGHT -- TOP OF HALF ALONG BREADTH BREADTH KEEL TO INNER BREADTH KEEL KEEL RABBET RABBET LINE KEEL BOTTOM 0" 5/" 5/" (STEM) /" (STEM) 0 /6" /6" 5/" /6" 7/6" 30 /" 3/" /6" 7/" 50 /" 3/6" 7/6" 3/6+" /" 70 /" 3/6" 3/6" /+" /" 90 /" 7/6" /6" 5/6" 5/" 0 /" /" /" 5/6+" 5/" 30 3/6" /" 7/" 5/6+" 7/6" 50 /" 3/" 3/" 5/6" /" 70 /" /" 7/" 5/6" 3/" 3/" 5/" 5/6" /" FOR TRADITIONAL CONSTRUCTION CUT TRANSOM TO DASHED LINES AND CUT GAINS IN AFT ENDS OF PLANKS FULL SIZE PATTERNS FOR STEM & TRANSOM, ETC. TRADITIONAL STEM -- HACKMATACK KNEE SHEET OF //05 " B " " " B D PARTING LINE FOR LAMINATIONS SOME BUILDERS MAY PREFER TO LEAVE TRANSOM LARGE AT TOP EDGE AND WORK DOWN TO PROPER HEIGHT AFTER DECK FRAMING IS IN PLACE. TOP OF LADDER FRAME TOP OF SHEER STRAKE MAINMAST MORTICE /" WIDE 3/" DRAIN HOLE LAMINATED STEM MAY BE USED FOR EITHER TRADITIONAL OR GLUED LAPSTRAKE CONSTRUCTION MAST STEP -- SAME FOR EITHER CONSTRUCTION, LOWER FACE DADOED TO NOTCH OVER INNER STEM /" OUTER STEM CENTERLINE OF MAST FRAME STATION # #0 X.5" HOG KEEL FRAME STATION # #0 X.5"
# X /" #6 X 3/" " #6 X 3/" 3 33 DETAIL -- FULL SIZE DETAIL -- HALF SIZE 3 0 3 6 7 LOOKING AFT AT STATION 7 3 LOOKING FWD AT STATION 7 30 5 6 0 5 39 0 0 3 33 9 9 9 #6 X 3/" STATION 6 6 0 6 #0 X /" 30 DETAIL -- HALF SIZE 35 5 5 KEEL -- MAHOGANY OR DOUGLAS FIR, SIDED 3/". HOG -- MAHOGANY OR D. FIR, S. 5/". 3 3 7 6 3 5 6 7 STEMS -- LAMINATED MAHOGANY OR D. FIR, S. /". MAIN MAST STEP -- MAHOGANY OR D. FIR, S. 3". TRANSOM -- MAHOGANY, S. 7/". STERN KNEE -- MAHOGANY OR LOCUST, S. /". PLANKING -- MAHOGANY MARINE PLYWOOD, /". SHEERSTRAKES, MOLDED MAHOGANY. 9 0 37 9 36 6 0 6 LEAD 3 LB 3 LEAD LB 3 9 FRAMES -- MAHOGANY OR LOCUST, LAMINATED OR STEAM BENT, S. /6, M. /". FLOORS -- MAHOGANY OR D. FIR, S. /6", FITTED ON TOP OF FRAMES. 30 BREASTHOOK --MAHOGANY, /", CL SEAM SPLINED WITH /" PLYWOOD, FLAT ACROSS BOTTOM, CROWNED ON TOP. 0 SOLE BEAMS -- D. FIR OR LOCUST, S. /6", M. ", POSTED NEAR MIDDLE WHERE NECESSARY. 3 3 SKEG -- MAHOGANY OR D. FIR, S. ", TAPERED TO 3/" AT BOTTOM. CENTERBOARD TRUNK SIDES -- /" MARINE PLYWOOD. 3 RUDDER -- 3/" MARINE PLYWOOD TAPERED TO 3/" AT TRAILING EDGE. CENTERBOARD BEDLOGS -- MAHOGANY OR D. FIR, S. 7/", M. 3/" IN MIDDLE. 33 AFT DECK MOLDING -- MAHOGANY, /" X /". 3 CENTERBOARD HEAD LEDGES -- MAHOGANY OR D. FIR, " SQ. 9 3 AFT DECK SHEATHING -- LIGHT CANVAS SET IN EPOXY RESIN. CENTERBOARD -- 3/" MARINE PLYWOOD, FWD EDGE ROUNDED, AFT EDGE TAPERED TO 3/". 35 TOWING HOLE -- LINED WITH /" OD COPPER TUBING. 5 CENTERBOARD SLOT -- 7/" THROUGH KEEL & HOG, " IN TRUNK & CAP. 36 BILGE PUMP -- WHALE COMPAC 50, BP0350. 6 7 SOLE & MARGIN BOARDS -- 7/6" CEDAR OR FIR, SPACED ABOUT /". THWARTS -- 3/" MAHOGANY, 9 /" WIDE, SLIP THWART 7" WIDE. KNEES -- LAMINATED LOCUST OR ASH, S. /6", M. 5/". 37 3 BALLAST BAGS -- HEAVY CANVAS FILLED WITH 5 LB. LEAD SHOT, TWO OR THREE RECOMMENDED. HOLES FOR TILLER LINES -- LINED WITH /" OD COPPER TUBING, FLARED ON BOTH ENDS, SET INTO BULKHEAD AND TRANSOM. 9 INWALES -- D. FIR OR SPRUCE, S. 7/", M. 3/" TAPERED AT BOTH ENDS. 39 FAIRLEAD FOR MIZZEN SHEET, BRONZE. 0 DECK BEAMS -- D. FIR OR SPRUCE, S. /", M. 7/". 6 0 STEERING LINE -- 3/" ROPE SEIZED TO ENDS OF STEERING TACKLES, LEFT SLIGHTLY LOOSE. AFT DECK -- /" MARINE PLYWOOD, WITH MAHOGANY EDGING. PIVOT PIN -- 3/" BRONZE ROD. 3 SIDE DECKS -- BUTTERNUT, CEDAR OR MAHOGANY, S. 7/6". COAMINGS -- MAHOGANY OR LOCUST, /" X 5/". BULKHEAD & DOOR -- /" MARINE PLYWOOD. 7 0 3 KEEPER PLATES -- /" BRONZE, 5/" X ". CHAFING GEAR -- 5/" BRASS HALF OVAL INSTALLED FROM STEM HEAD TO END OF SKEG, DOUBLE AT CENTERBOARD. AT STEM, FILE TO SAME WIDTH AS STEM FACE. 5 6 7 9 MIZZEN MAST THWART -- D. FIR OR SPRUCE, " X 3 /". MIZZEN MAST PARTNER -- LOCUST OR OAK, S. ". MIZZEN MAST STEP -- MAHOGANY OR FIR, W PLYWOOD GLUED TO TOP. MAIN MAST PARTNER TOGGLES -- 3/" LOCUST OR OAK, SPRING LOADED. AUX. MAIN MAST STEP -- LOCUST OR OAK, " X ". /" /" /6" " " " " DECK CAMBER STATION SCALE 3" = ' 5 3 #0 X /" DETAIL THRU CENTERBOARD PIN HALF SIZE #6 X 3/" INTERNAL STEERING TACKLE -- MAY USE MODERN LIGHTWEIGHT BLOCKS. /9/0 CONSTRUCTION PLAN FOR GLUED LAPSTRAKE PLYWOOD SCALE: /" = ' OR AS NOTED SHEET 5 OF