Marine diesel adoption came through a sequence of increasingly convincing vessels rather than one sudden breakthrough. A 1902 French canal-boat installation led to engines for submarines, while Noble Brothers' Vandal used electric transmission because early diesels were not yet reversible. Reversible two-stroke and four-stroke engines followed, and Diesel could list roughly 300 motor vessels by 1912. Ramanga, Vulcanus, and the transatlantic Toiler widened the evidence before Burmeister & Wain's Selandia attracted British engineering attention on her 1912 trial voyage. Selandia's twin-screw installation, measured oil consumption, and 11-knot service performance made the economy and reliability of ocean-going diesel propulsion concrete. Lloyd's Register totals show that adoption was already broader than one celebrated ship.
Notable Point · 15:10-18:45
Early motor ships prove the marine case
The marine adoption section moves from a 1902 canal-boat engine to Vandal, reversible engines, and Selandia's ocean-going demonstration.