Gas engines looked promising but remained constrained by fuel and shipboard practicality. William Siemens predicted in 1882 that producer gas might replace the complex and dangerous steam boiler, yet the machinery still had to prove itself at sea. Rattler's 1907 installation paired a producer with a 500-horsepower five-cylinder engine, years after turbine warships had appeared. A contemporary assessment judged the system most suitable for small vessels working from fixed bases rather than as a general replacement for steam. The growth of the petroleum industry provided a more convenient fuel and opened the path from spirit and lamp-oil engines toward heavy-oil compression ignition.
Notable Point · 5:45-9:50
From producer gas to oil fuel
The early engine story follows producer-gas experiments such as Rattler before petroleum made oil engines more practical for ships.