Jahazi

Jahazi

Introduction

"If you want to build a ship, don't drum up people to collect wood and don't assign them tasks and work, but rather teach them to long for the endless immensity of the sea"
Antoine de Saint-Exupery

With that in mind one may think that anybody with a passion for the sea can build an ocean going yacht. But be warned! It is not something that can be taken lightly. It takes time and dedication.This project was started in 2004 with the purchase of plans for the Didi 34. Although almost finished, it is still ongoing.

The Didi 34

The Didi 34 is a modern offshore cruiser/racer designed by the marine architect Dudley Dix. The design is aimed at home builders who want to build a simple and fast boat built by the radius chine plywood method.  This building method is simple, strong and uses no fancy materials or parts and is designed for home/kit construction.
 The Didi 34 is a great boat for weekend excursions, club and offshore racing. Although not a classical heavy long-keeled cruiser, she is best on longish offshore courses and with her interior layout will perform well on occasional cruising. She is easily handled with a crew of just two, is a remarkably dry on a beat with little pounding and off the wind is quite steady and fast. It is possible to sail her single-handed assuming a roller-furling headsail, tiller-pilot and stackpack on the main.
She sails at her best at 12-15 knots and wants the 1st reef at about 20 knots. She is a capable and fast boat on all points of sail with reaching being her strong point.
The Didi 34 is a fantastic all-rounder with impressive performance, cabin space, safety, good handling, and great looks. If you saw a Didi 34 at the dock you would not guess that she is build and shaped from flat plywood panels.




Interior layout




Specifications
LOA: 10,50m
LWL: 9,60m
Beam: 3,40m
Draft: 1.5m or 1,90m
Displ to DWL: 4300kg
Ballast: 1730kg deep keel, 1960kg shallow keel
Waterplane area: 17.07sq.m
Immersion rate: 175kg/cm
Wetted surface: 24.4sq.m
Sail area (main + 100% fore triangle): 49.8sq.m
Sail Area/Wetted Surface: 2.04
Sail Area/Displ: 18.7
Displ/length: 135
Prismatic coef: 0.56
Block coef: 0.43
Fineness coef: 0.66
Righting Moment @ 30 deg: 2908kgm
Righting Moment @ 60 deg: 3912kgm
Righting Moment @ 90 deg: 2952kgm
I: 12,24m
J: 3,62m
P: 12,50m
E: 4,5m
Mainsail (excl roach): 28,13sq.m
Foretriangle: 21,70sq.m
150% Genoa: 38,28sq.m
Powering 15-25hp diesel
Headroom aft: 1.87m
Headroom at mast: 1.76m
Fuel: 150 litres
Water: 600 litres



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