Scarab18Print

Scarab 18 folding trimaran
	The scarab 18 has been designed to fill a gap in the folding trimaran line-up between the 16 foot" Microcruiser and the new Scarab 650. The hull shape is very similar to both of those designs, and is relatively easy and economical to build. The design has been detailed for foam sandwich construction with notes for building in plywood if that is desired. As the name suggests the boat is 18 foot (5510mm) long and 15 foot 6 inches (4715mm) wide when extended / 6 foot 10.5 inches folded. The weight (fully rigged) is about 759 lbs (345 kg) in foam with a designed displacement of 1100 lbs (500 kg). The mainsail is 180 sq ft (16.5 sq m) and the jib 68 sq ft (6.3 sq m) an asymmetrical spinnaker can be used 162 sq ft (15 sq m). This will make the boat very easy to handle with no winches required.



The accommodation consists of a double berth with two settee/quarter berths. As with all small boats you will need to be very good friends if planning to stay overnight onboard, the best setup would be day sailing for 4 and over nighting for 2. A small one burner stove can be stored in one of the quarter berths an esky in the other and a porta potti stored under the cockpit when not in use. There is storage provided under the forward berth and under the settees for food, clothing etc. Under the cockpit seats there is storage for safety gear, tools, fuel and a stern anchor. The main anchor is stored in an anchor locker in the bow. A 4 hp long shaft outboard motor is all that is required for auxiliary power and is mounted on a bracket on the transom.
Study Plans $25 AUD Full Plan price $750 AUD