Illustrations of the 25 ft. long, by 5 ft. beam, by 2 ft. 6 in. depth steam launch fitted with a simple inverted vertical 5 in. by 5 in. stroke engine operating on steam supplied by a steel vertical boiler; the launch, engine and boiler were built by Messrs. Forrestt and Son, of Limehouse, for the Belgian Association for the Exploration of Central Africa.