Classic Boat — November 2017

10 9 8 7 6 5 4 3 2 1 0m -1 -2

12 11 AP 9 8 7 6 5 4 3 2 1 FP -0.5

dwl

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2

1

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CL

Thisdrawingistheproperty of G.L. Watson & Co. Ltd. It may not beusedin any other contract or project.It must bereturnedtoG.L.Watson& Co.Ltd.immediatelyuponrequest andany electronicversionsdeleted. Thereceipt andacceptanceof thisdrawingimpliesthat theseconditionsasstatedareaccepted.

Thisdrawing, itscontentsandany information receivedwith it may not becopiednor disclosedtoany3rdpartywithout expresswrittenpermissionofG.L.Watson& Co.Ltd.

Martins Building Water Street Liverpool L23SXUKT: +44 (151) 6018080 F: +44 (151) 6018070

http://www.glwatson.com

G. W. N L ATSO

Issue Date Status Notes

270 Britannia

Client Approval

Scale Date

RequestedBy

ApprovedBy Date Approved

Drawn By

Drawing#

DrawingTitle

Design# Project

Area

0 21-01-09Preliminary

JRG

1:75 21-01-09

LinesPlan

Exterior

CLASSIC BOAT NOVEMBER 2017 61

S

eeing a yacht in the flesh and sailing her in a

wide variety of conditions is enough to tell an

experienced mariner a lot about her character.

When the only information available is a

photo and a lines plan, things can be very different.

The image gives a general impression, but it’s the plan

that really dishes the dirt.

These days, the classic lines plan has fallen into

disuse for most amateurs. The reason is simple. In

contrast to the average craft designed before

World War II, the hull shapes of today’s production

cruising yachts are unsophisticated, delivering

good performance in fair weather by virtue of a

relatively low wetted area, a clean run, a deep fin keel

and a spade rudder.

The lines plan of such a boat is of scant interest

compared with the drawings of the deep-bodied,

REPRODUCED BY KIND PERMISSION OF GL WATSON AND CO LTD

CB353 How to read lines.indd 61 26/09/2017 12:57