The 670 is the original Scarab, designed back in 1996 and is still popular today. Originally designed to use a second hand Hobie 18 rig, the drawings also show an alternative slightly larger sail plan. The centreboards are asymmetric and housed in the floats. The Scarab 670 was built using marine plywood and epoxy resin with aluminium ring frames at the beam supports

Scarab 670
Built by Kari in Finland now owned by Stephane in France. Photo taken by Louis DeLassus

Scarab 670

This boat "Scarab" was built by Ray Kendrick using Gaboon plywood covered with glass and epoxy resin. The rig, sails and trailer was from a Hobie 18. The total cost in 1997 was $13,000 AUD with $4,000 of the total for the Hobie 18.
Accomodation options for this design are 2/3 single berths or 1 double + 2 singles with seating for 4
This boat has a large single bunk forward with single port and starboard bunks. These two bunks can be converted to a double at the step level.
The main hull has no fin case inside which allows for more useable space. The asymmetrical pivoting fins are in the floats reducing the stress of sailing in thin water.

Scarab 670

Length Overall................................... 6.77 m
Length Water line.............................. 6.3 m
Beam Overall..................................... 5.64 m
Beam Folded..................................... 2.5 m
Draft Board up................................. 270mm
Draft Board down............................. 900mm
Weight (bare, empty)........................ 400Kg
Sail area (Hobie 18')......................... 23 sq m
Spinnaker/reacher........................... 17 sq m
Auxilliary power............................... 4hp LS outboard
No winches required
Asymmetrical fins (pivoting) in the floats
Construction: Multichine stitch and glue plywood, epoxy resin and fibreglass. Beams are fibreglass.

Scarab 670
This boat built by Bruce in Brisbane

Scarab 670
This boat built by Kari in Finland

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 39 drawings, Material list and a Building guide in PDF format emailed within 24 hours. If you purchase the back up CD it will be sent by airmail.

Study plans $15 AUD
Full plan set $150 AUD
Full plan set with back-up CD $160 AUD

* If your emailed order has not arrived within 24 hours check your spam box. If it is not there contact us

The Scarab 670 folding trimaran is designed to be built in plywood

Buying plans