For the first time in the history of British civil aviation, a series of maps has been issued by the Ordnance Survey Department employing the metric system as the basis of measurement. This is the result of an effort for uniformity in air maps used by different countries. Up to the present they differ in scale /symbols and neral style of preparation. This one of the problems discussed at the Conference of the Federation Aeronautique Internationale two months ago, The new maps are being issued under the terms of the Convention of the International Commission for Air Navigation, and are intended for use in all but long distance flights. On these new maps the kilometre takes precedence over the nautical mile and the English mile scale, Altitudes are marked in metres instead of feet, the contour line being spaced at 100 metre-intervi Miss Mary
Text read from the printed page and cleaned; old type leaves the occasional error.