Updated December 2025

Mainly technical & theoretical aspects of Radio Sailing

I'm interested in radio-controlled racing yachts.  I campaign a fine wooden hulled Ravenna in the UK 6M class, shortly to be joined by an equally fine Romanza, both Bantock designs.  I have acquired a 36R Raptor and sail it approximately annually.  For some while I sailed in the International One Metre (IOM) class, most recently with a Pikanto, and hope to return 'real soon now'.  Previously I campaigned an Italiko IOM, and before that an Ikon, highlights being various mid-fleet placings at European and World championships.  In other classes, I have sailed a Marblehead Quark, a 10R Puzzle, and vane-sailed an A Class and a 36R.  For some years I also campaigned a Sword A Class, my highlight was 9th place in the World Champs at Gosport in 2005.  My "Bakers Dozen" A Class, built by Graham Bantock in Kevlar to Roger Stollery's design from 1983 and the RA National Champion of that year, has gone to a good home in Norway, courtesy of Øyvin Halle.

This site is aimed at technical and theoretical aspects of RC yacht racing. In particular, it has a number of spreadsheets to download. Although aimed at the IOM, they should be useful for any non-rotating fractional Bermuda sloop rig.

With a side hustle on experimental data analysis

Tutorials and conceptual explanations of the statistical data analysis of experiments mostly using analysis of variance (anova) techniques.  I've been consulting in this field for, oh, over 50 years, and have found that researchers in the relatively new fields of computer applications are unsure of the application of classical methods.

Site news & other interest

December 2025:  Multiple Choice Questions  Computer-marked assessment for education and training.  An Excel spreadsheet to assist marking and improving an MCQ test, along with some notes on the theory and practice of MCQs.

December 2025:  ICS File for Club Dates  An Excel spreadsheet that takes your Club calendar and constructs an ICS file to upload to your diary.  No more tedious typing!

Site content

The radio sailing content is classified into the three major headings of Design, Build, and Race.  Anything not fitting that scheme goes into Other Topics, including Links and Reports.  The data analysis content is listed under Data Analysis.

Commercial stuff

Some 3D printing of fittings and accessories under sub-contract to equipment suppliers.

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This Web site content is to be Attributed to Lester Gilbert.
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2025-12-13

©2025 Lester Gilbert