Waller TC 670 by Mike Waller Yacht Design

22 ft multichine ply. trailerable catamaran with cabin

Length overall22'6.7 m
Beam8' 1"2.47 m
Draft2' 11"0.9 m
Draft (cb up)11"0.29 m
Weight1698 lbs770 kg
Displacement2363 lbs1072 kg
Sail area248 sq. ft.23.00 m2
Hull construction Plywood

URL: http://wallerdesign.com.au/tc670.html


Our most popular catamaran design, the WALLER TC 670 was designed as an easy to build and sail multi-hull yacht, which could also be trailed by the average family car without the need for demounting or expensive collapsable trailers. Designed primarily for 2 people, the TC 670 is ideal for a couple, or a family with young children. The small cabin features a double berth, a good sized and easy to use galley, and a small table around which 3 can sit in comfort. There is also a chemical toilet beneath the foot of the double berth, and 2 children could bunk down in the cockpit under a boom tent. At anchor, the tent will turn the cockpit into a huge covered living area.It is also quite possible to add quarter berths in each hull under the cockpit seats for children.

The multi chine hull (flat bottom with 2 chines) is constructed from sheet ply over plywood, with minimal timber framing. Construction employs the timber / epoxy building technique, is very strong to stand up to the rigors of trailing, and is simple and straightforward with the entire shell built as a single unit. When turned over, very little is required to complete the vessel.

This yacht features a single centre board and rudder placed on the center line. On small, narrower cats, this configuration has proven to be most effective and efficient, and the lack of board cases in the hulls makes construction that much easier and quicker

The rig is a simple 7/8 design, with simple spars and utilizing off the shelf fittings. The rig can be home built if desired.

Particular care has been taken to ensure that this boat is both a safe and reliable performer, with an efficient sail plan and low profile for windward performance. Note that its intended use is sheltered and semi sheltered waters, and not open water.

All sails can be reefed in a blow, and the yacht features removeable 'hobbie' style out-rider seats for sailing in stronger winds.For normal sailing these are unnecessary. The rig features an assymetrical spinnaker set from a bow pole, but a normal symetrical spinnaker could be used if desired.

Interior layout

Catamarans about same size as Waller TC 670

Janus   Janus
Simple 4 berth trailable cat with dory hulls

LOA: 21' 10"/6.65 m   compare
Wizard   Wizard
Folding trailable catamaran with central cuddy

LOA: 22'/6.7 m   compare
Strider   Strider
The "Classic" trailable catamaran

LOA: 24'/7.3 m   compare
Shadow   Shadow
A detuned Strider with LAR keels

LOA: 24'/7.3 m   compare

Questions? Suggestions? Contact us at: info@boatplans.cc