Description
Please note: Current Classic Design Building Plans now include the Wharram Wingsail Rig plan sheets as standard, as well as the plan sheets for the original sail rigs.
The Tangaroa Mk IV was a design that evolved from the Tangaroa Mk I, James’ first design for which he drew Self-building Plans in 1965. The Mk IV has more graceful hull lines, wider hull beam, more freeboard over the bunks and a longer cabin with standing headroom, so it is not to be mistaken for the Tangaroa Mk I of which many are still sailing.
Tangaroa Design Data
| Building Method: | Ply/Timber/Epoxy/Laminate | |
|---|---|---|
| Length Overall: | 35′ 6″ | 10.82 m |
| Beam overall: | 19′ | 5.80 m |
| Waterline length: | 28′ 6″ | 8.69 m |
| Draft: | 2′ 1″ | 0.63 m |
| Weight: | 2 tons | |
| Loading capacity: | 1.5 tons | |
| Sail area: | 410 sqft | 38.1 sqm |
| Building Time Estimate: | 1800 hours | |
What’s In Our Plans?
In this video, we open up an example of a full set and walk you through the contents – from the large-scale technical drawings to the beautifully illustrated A3 sketchbook that guides you step by step through the build. If you’ve ever wondered about building your own Wharram, this video gives you a real, hands-on look at what to expect inside the plans.


