TC 8.5m Racing Catamaran

Length................ 8.5m
Beam................. 5.5m
Draft................... 0.3-1.6m
Dry Weight......... 1200 kgs
Mast height........ 11.5m
Sail Area............ 48 m2 upwind

This design was produced in response to the New Zealand Multihull Yacht Club's Formula 28 rule. It is designed as a performance boat, with three beams and trampoline between the hulls. The cockpits in the hulls contain the sailing controls, while the halyards are left on the rotating, single spreader mast. A heavily roached mainsail will be matched with a variety of headsails, either overlapping or not. Masthead gennakers and 3/4 screachers are an option from the prodder.

The hulls are a development of other TC Designs, and also feature a spray rail and shallow forefoot to help with dynamic lift at speed. The rounded decks are good for aerodynamics and shedding waves.

The interior will feature four berths, and a basic galley in one hull. A sealable main hatch will keep the interior watertight.

The centre girder not only houses the outboard, but extend forward to support the forestay and roller furler screacher.

For other builders, cedar or foam cores can be used, with light E-glass, or even kevlar or carbon skins. The hulls are built in half, in vertically split female frames on their sides. This gives very good access to the hull interior, before joining the halves together. Nearly all of the TC design hulls are built in foam this way, and the method has been most successful.



TC Design Phone: 64 (0)274 858275 email: tcdesign@xtra.co.nz