Scarab 650 folding trimaran
This design is for the beginning builder. Some experience with tools is needed.
The Scarab 650 Sport is a brand new design incorporating many of the desirable features of the previous Scarabs and the new Scarab 18. This boat has all the good features of the Scarab 18 but is a longer more powerful boat. These pictures were supplied by Dani who recently launched his boat in Switzerland.
A double berth and two quarter berths, plenty of stowage space with a porta-potti
stowed under the cockpit make up the accommodation. An offset centreboard (housed in the starboard settee riser) eliminates
the problem of the centreboard case taking up cabin space. The plans are detailed for foam sandwich construction with
notes covering marine plywood construction if builders wish to build in ply.
The design calls for a rotating rig and a fixed extending prodder. The working sail area of 26 square metres
(280 sq ft) combined with the lightweight of the boat will ensure lively performance. The pivoting centerboard is offset
from the centreline and housed in the starboard settee riser and the rudder is also pivoting eliminating the stress of
hitting bottom.
The Scarab 650 Sport has accommodation for four. A double berth up forward and two settee/quarter berths in the main area of the cabin. The quarter berths may also be utilized for stowage or galley equipment if required. For a crew of two the ideal setup will be to use the forward berth for stowage and sleep on the settees, a divided cushion on one side will facilitate a galley unit being slid out from under the cockpit seat. A portapotti can be stored under the cockpit.
The Scarab 650 may be moved short distances with the outboard motor when folded. When folded, the Scarab 650 is a very compact unit, which is within the legal trailering width. The mast is supported by a post at the front of the trailer and a lightweight aluminium beam fitted to the aft beams. The boat may be used for accommodation when on the trailer.
SPECIFICATION.
Length Overall.................................. 6.5 m (21' 4")Beam overall unfolded)..................... 5.58m (18' 4")
Beam overall folded)...................... 2.48 m (8' 2")
Mainsail area.................................. 18 sq m (194sq ft)
Jib area........................................... 8 sq m (86sq ft)
Total working sail area.................. 26 sq m (280 sq ft)
Screecher area.............................. 18.5 sq m (200sq ft)
Draft (board down)........................ 1.2 m (4' 0")
Draft (board up)............................. 300 mm (12")
Approximate weight...................... 450 kg (990 #) includes rig
Displacement to DWL.................. 800 kg (1760#)
Outboard motor............................. 4-5 hp long shaft
Buying plans
Study Plans: sent in PDF format within 24 hours. Study plans are provided to show a dimensioned general layout and sail plan, accomodation and a basic material list. Some other details may also be included. The boat cannot be built from the study plans but are provided for information and basic pricing.
Plans: the full plan set is required if the you want to build this boat. It contains all the information and dimensions required. The plans are presented in PDF format. These can be printed on your home printer on A4 size paper or sent to a photo copier to enlarge to A3 size. Plans consist of 54 drawings in PDF format emailed within 24 hours.
DXF cutting files: these are only required if the builder owns or has access to a CNC router or laser cutter. the information given describes the finished component. The operator will have to offset the outline for the toolpath suitable for the chosen tool.