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Lilou 2 - Structure assembly – 26 January 2019 – rev 1 1 1 rev Structureassembly Lilou-2appendix – 4– Lilou 2 - Structure assembly – 26 January 2019 – rev 1 2 : Bulkheads are not bevelled Important edges in upper parts Glue the trims protecting the plywood Bulkheads preparation: Lilou 2 - Structure assembly – 26 January 2019 – rev 1 3 Bulkheads preparation: for the fore locker shutter. Glue the batten/cleat 22 x 22 as shown. Glue the rabbet on the mast bulkhead (fore face) Lilou 2 - Structure assembly – 26 January 2019 – rev 1 4 Glue the batten/cleat 22 x 22 as shown. Fore Fore bulkhead, aft face: Lilou 2 - Structure assembly – 26 January 2019 – rev 1 5 Aft bulkhead, fore face: Glue the batten/cleat 22 x 22 as shown. Lilou 2 - Structure assembly – 26 January 2019 – rev 1 6 Note the motor support and the doubler glued inside the buoyancybut the The compartment.doubler is glued now, support will be screwed later according to the actual motor. Buy them in advance to make the cut-out before assembling of these parts (it will be more difficult to cut at a later stage). and sides of the motor well) are fitted with dinghy type watertight hatch covers. Overall diameter is maximum 250 mm. The The bulkheads of the buoyancy compartment (fore bulkhead Lilou 2 - Structure assembly – 26 January 2019 – rev 1 7 before the panel is glued down. Maximum Maximum overall diameter is 220 mm. ballast and the bilge pump suction space. Cut-out may be done at a later stage, just Dinghy hatch covers give access to the water Lilou 2 - Structure assembly – 26 January 2019 – rev 1 8 assembly ties. bulkheads ends and the gunwales. Re-drill (4 diameter)mm the holes for the The The transom is made of two glued The layers. inner layer has mortices to receive the motor well Lilou 2 - Structure assembly – 26 January 2019 – rev 1 9 alignment in the same level. about 50 mm out of the joint. Hull Hull strakes are made of three parts. identifying each strake (o for strake 1, 1 for strake 2, etc.). Indents are located at the aft The ofnumber end. indents allows Sheath the joint area on the inner face (300 g/m² cloth) extending Use temporary planks to sandwich the glueing zone to get a perfect Lilou 2 - Structure assembly – 26 January 2019 – rev 1 10 temporarily inserted dry. Add also temporarily inserted dry. and spacers of the centreboard case. The screws will be at first It is essential to glue these layers on a perfectly flat surface. Use screws to avoid any slippage of the parts when glueing. screws in the more stressed areas, in particular into the posts : in in the centreboard area. Outer layer (in pink) which double the intermediate layer Intermediate layer (in green) with a vertical cut for the centreboard pivot, Outer layer (in blue), interrupted in the centreboard area, This ensemble is made of 6 layers Assemble the backbone, including the centreboard case. Lilou 2 - Structure assembly – 26 January 2019 – rev 1 11 Assemble the cradle intended to support the hull during assembly. Lilou 2 - Structure assembly – 26 January 2019 – rev 1 12 » garboards and then to open book-folded them. along along the centre edge. It is recommended to wire stitches on the « on the cradle. The overhang aft is 1 062 mm, measured Lay down the garboards (lower hull strakes) Lilou 2 - Structure assembly – 26 January 2019 – rev 1 13 starboard strakes. As a rule, do not tighten too much the ties, as you will have to insert epoxy putty later. described in sheet 51. At the stem, stitch together the port and Stitch the hull strakes as per the method Lilou 2 - Structure assembly – 26 January 2019 – rev 1 14 », glue : when we write "epoxy fillet", or it means the same mix of epoxy and fillers used for various uses. Note "epoxy putty", or simply "epoxy" or « to close the remaining void spaces. A small to closeA the remaining void spaces. patch of cloth may also be added. the sheer-strakes to join at the stem. An epoxy fillet will be added at a later stage The The overlap width is 20 mm about. It is stitched with Atties the like fore- the others. end, the strake 3 is simply cut-out to allow The The last strake (sheer-strake) is of the clinker type, overlapping the previous one. Lilou 2 - Structure assembly – 26 January 2019 – rev 1 15 bulkheads 2 and 3. of bulkhead 1, and between Mark the cut-outs for the backbone, aft strakes to give some reservation for the epoxy filler to be done at a later stage. Keep Keep a 2 spacemm between transom and the outer face of the transom by 2 mm about. Do Do the same for the The strakestransom. extend check that the bulkheads may be inserted correctly into the hull. necessary to put down all This ties.task aims to give the position of these bulkheads. It is not stitched with existingties.The holes into the hull Lay down the five main bulkheads, temporarily Lilou 2 - Structure assembly – 26 January 2019 – rev 1 16 Mark the bulkhead position and take them off. Take out all hull ties. Take Weld also theWeld planking to the transom, inserting the putty carefully on the full width of the transom. between each tie. "Weld", with epoxy putty, the hull strakes "Weld", with epoxy on putty, the outer side, Lilou 2 - Structure assembly – 26 January 2019 – rev 1 17 inside the water ballast. Sheath (300 to 400 g/m²) the garboards to improve the overall stiffness and give better protection to layallow down of the sheer-strake at a further stage. strong one inside the stem. Let free the last 50 atmm top, and a stronger one at the fore-end. Make a good epoxy fillet between transom and hull, and a clinker joint, make just a discreet epoxy fillet into the joint, these joints a glass For the tape, sheathed with epoxy. angles are very opened, their Add thicknesson is small. Make epoxy fillets on the insideAs facethe of hull joints. Lilou 2 - Structure assembly – 26 January 2019 – rev 1 18 Open the edges in V shape to be able to fill in with epoxy putty. backbone, which includes the centreboard case. Open the cut-out into the hull for the Lilou 2 - Structure assembly – 26 January 2019 – rev 1 19 thickness ofjointsThe hull.have to be opened in V previously. hull hull is located correctly and square to the backbone. Fill-in carefully all joints on the full of the cradle. Apply a thickof the cradle.coat of glue where required and lay down the hull. Check that the Sand, if required, the bottom of the hull, where the backbone will be glued. Mark the position of the hull on the cradle. Lift the hull and lay it aside. Lay down the backbone into the notches For For this task, you need some helping hands. Insertion of the backbone. Lilou 2 - Structure assembly – 26 January 2019 – rev 1 20 box has to be watertight. Coat inside (three coats epoxy) as it will be difficult to paint inside. Prefabricate the box which is located into the fore locker to stow the oars (and a pole ifThis any) on the cockpit floor. Lilou 2 - Structure assembly – 26 January 2019 – rev 1 21 You may have to drill some holes plugged by the sheathings.You Add epoxy fillets with the inner backbone. Insert the oars box with both end bulkheads. with the removeThen ties.the ties and finish glueing. Lay down the bulkheads glued to the hull with epoxy fillets. Glue first Lilou 2 - Structure assembly – 26 January 2019 – rev 1 22 Prefabricate the mast box. Glue it in place with care to keep the fore compartment watertight. Lug yawlLug version. Lilou 2 - Structure assembly – 26 January 2019 – rev 1 23 This sketch shows the yawl lug version with some mortices aiming at receiving the mizzen mast step. Note the doubler allowing to screw the motor supports. Make careful epoxy fillet, ensuring watertightness. oars box, it is better to insert it with the aft bulkhead. well well and the aftAs for buoyancy the compartments. Lay down the longitudinal bulkheads between the motor Lilou 2 - Structure assembly – 26 January 2019 – rev 1 24 according to the actual outboard motor. Add Add both 12 mm plywood parts, making a small quantity of water in the motor Seewell the motor support arrangement, which will be installed only watertight compartment, which aims at reducing the Lilou 2 - Structure assembly – 26 January 2019 – rev 1 25 bulkhead. as possible. Drill the holes before laying down the endThese plugs bulkhead. have to be located as low Drain plugs (in red) are fitted into the water-ballast aft both sides of the centreboard case, are inserted into mortices into these case cheeks. same way as the main bulkheads. Half bulkheads, on Lay down the secondary bulkheads (in blue) is the Lilou 2 - Structure assembly – 26 January 2019 – rev 1 26 aiming aiming at draining the watertight cockpit. Lay down the small longitudinal bulkheads Lilou 2 - Structure assembly – 26 January 2019 – rev 1 27 the water-ballast. Make carefully watertight epoxy fillets. Lay down the longitudinal bulkheads closing Lilou 2 - Structure assembly – 26 January 2019 – rev 1 28 and coat the plywood edges. thePlane off strakes ends around the transom. For For the clinker sheer-strake, fill-in the opened joints taking care to get a fair hull. joints are not finished! Complete all the epoxy joints It is now time to turn over the hull with care: the hull Lilou 2 - Structure assembly – 26 January 2019 – rev 1 29 ends.