Some JOHN DEERE Marine Diesel Engine Operator's Manuals PDF above the page.
John Deere ICEs are the common form of engines, they're used in cars, boats, ships, aircraft and trains.
They named as such because the fuel ignite to work inside the engine.
This done with a piston or with a turbine. A John Deere ICE that uses a piston is called an intermittent combustion engine, while an engine that uses a turbine is called a continuous combustion engine.
The difference in mechanics is obvious because of the names, but the difference in usage is less obvious.
The John Deere ICE piston engine is extremely responsive compared to the turbine and is also more economical at low yields.
This makes them ideal for use in vehicles as they also start faster.
On the contrary, the turbine has an excellent power-to-weight ratio compared to a piston engine, and its design is more reliable for continuous high performance.
The turbine also performs better than a naturally aspirated piston engine at high altitudes and low temperatures. light weight, reliability and high altitude capability make turbines the engine of choice for aircraft.