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Tuesday, April 10, 2007

Reading List: The Design and Construction of Flying Model Aircraft

Russell, D. A. The Design and Construction of Flying Model Aircraft. Leicester, England: Harborough Publishing, [1937, 1940] 1941. British Library Shelfmark 08771.b.3.
In 1941, Britain stood alone in the West against Nazi Germany, absorbing bombing raids on its cities, while battling back and forth in North Africa. So confident was Hitler that the British threat had been neutralised, that in June he launched the assault against the Soviet Union. And in that dark year, some people in Britain put the war out of their minds by thinking instead about model airplanes, guided by this book, written by the editor of The Aero-Modeller magazine and published in that war year.

Modellers of this era scratch built their planes—the word “kit” is absent from this book and seemingly from the vocabulary of the hobby at the time. The author addresses an audience who not only build their models from scratch, but also design them from first principles of aerodynamics—in fact, the first few chapters are one of the most lucid expositions of basic practical aerodynamics I have ever read. The text bristles with empirical equations, charts, and diagrams, as well as plenty of practical advice to the designer and builder.

While many modellers of the era built featherweight aircraft powered by rubber bands, others flew petrol-powered beasts which would intimidate many modellers today. Throughout the book the author uses as an example one of his own designs, with a wingspan of 10 feet, all-up weight in excess of 14 pounds, and powered by an 18 cc. petrol engine.

There was no radio control, of course. All of these planes simply flew free until a clockwork mechanism cut the ignition, then glided to a landing on whatever happened to be beneath them at the time. If the time switch should fail, the plane would fly on until the fuel was exhausted. Given the size, weight, and flammability of the fuel, one worried about the possibility of burning down somebody's house or barn in such a mishap, and in fact p. 214 is a full-page advert for liability insurance backed by Lloyds!

This book was found in an antique shop in the British Isles. It is, of course, hopelessly out of print, but used copies are generally available at reasonable prices. Note that the second edition (first published in 1940, reprinted in 1941) contains substantially more material than the 1937 first edition.

Posted at April 10, 2007 22:21