Find the Right Boat for You

The Wharram Design Book is the best starting point if you are still exploring the full design range. It gives an overview of each self-build model, introduces the Wharram boat builder’s mindset, and helps you narrow down which boats may suit your needs, dreams and sailing plans. It is available as a digital download.

A Study Plan then takes you deeper into a particular design. With large plan sheets, design notes, photographs, performance information, article extracts, FAQs and a materials list to help estimate local building costs, it gives you a clearer sense of the boat before you move on to the full Boat Building Plans.

Study Plans are only available as digital downloads. You can print them at home if you wish.

The Mana 24 design does not have a Study Plan, comprehensive design information is freely available.

Discounts are applied automatically when you add multiple Study Plans to your basket:

  • Two Study Plans: 10% off
  • Three Study Plans: 20% off
  • Four or more Study Plans: 30% off
Islander 39 3D drawing

Pahi 31 Study Plan

£18.00

The Pahi 31 Study Plan is intended to help you decide if this design is for you.

Category:

Description

The first of the Pahis, designed in 1979 after the building of a 35ft prototype, which successfully sailed the 1978 Round Britain Race. The PAHI shape has proven itself in rough weather conditions, in speed potential and ease of motion. At only 31′ she is still capable of ocean voyages. Standing headroom is under a large raised hatch.

The original Pahi 31 rig is a Bermudan cutter, with low cut, anti-twist, loose footed mainsail, but now she is also available with the Wharram Wingsail Rig, giving more clear centre deck space as the mast is placed further forward.

Study Plan Contents

  • 2 x A1 Plan Sheets
  • 1 x A3 Colour Photo Sheet
  • Materials List
  • 5 x Pages of magazine article extracts

Design Data

Building Method: Ply/Glass/Epoxy/Laminate
Length Overall: 31′ 9.45 m
Beam Overall: 16′ 3″ 4.95 m
Waterline Length: 25′ 7.6 m
Draft: 1′ 8″ 0.5 m
Weight: 1.5 tons 1500 kg
Loading capacity: 1 ton 1000 kg
Sail area: 295 sqft 27.5 sqm
Building Time Estimate: 1500 hours

Visual Tour

Pahi 31 Photo Gallery Pahi 31 Videos