Robinson 16 Dibley Marine

Robinson 5000

Repeat client, John Robinson, commissioned us to design a new beach tri for his personal use. John lives on a cliff edge, overlooking Stanmore Bay in the Whangaparaoa Peninsula, just north of Auckland. This Bay has one of the best beaches around Auckland and John wanted to have a fast, fun, easily rigged trimaran that he could have fun with over the summer.

Robinson 5000, Mk I

And just as important, he wanted the outer hulls (Ama’s) to hinge back towards the mainhull (Vaka) so he can trailer his Tri back home to the cliff top. The result is the Robinson 5000.

Robinson 16 trimaran plan

The Robinson 5000 is easily rigged and sailed by one person. All controls are within reach of the helmsman and the rudders effortlessly flip up when coming into the beach. The Ama’s have a length-to-beam ratio of 14:1 and enough buoyancy to lift the main hull out of the water, but not so much that drag and performance become an issue.

Robinson 5000, Mk II


Built by professional builder Richard Edlin, who runs a yard out of his property in Matakohe, Northland. His property lies on the edge of the Kaipara Harbour, and is as pretty a place as can be found on the west coast of North Island. The carbon fibre spar and other carbon fittings were built by Alex Valling, of C-Tech, who runs his very successful factory out of Auckland. (www.c-tech.co.nz)

Robinson 5000, Mk I on trailer


Robinson 5000, Mk I

Sails are by Doyles NZ, and all deck gear is supplied by Harken NZ.

SPECIFICATIONS AND PRINCIPAL DIMENSIONS

LOA 5.000 m 16’ - 5”
LWL 4.890 m 16’ - 1/2”
Beam (Sailing) 3.000 m 19’ - 10”
Beam (Trailering) 1.096 m 3' - 7"
Displacement (Sailing) 155 kg 342 lbs
Displacement (Lightship) 75 kg 165 lbs
Sail Area 13.24 sq.m 142.5 sq.ft
Disp/L Ratio 37
SA/disp Ratio 46.6



Robinson 16 Trimaran Sail Plan

21/01/2021
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