Specifications
The N9.600 CR2 propulsion engine delivers a power output of 410 kW (557 hp) at the crankshaft with a displacement of 9 liters. It features a 6-cylinder inline configuration and operates on a 4-stroke diesel cycle. The engine has a bore and stroke of 118.4 x 136 mm and a compression ratio of 16.3:1. It achieves a rated speed of 2500 rpm and an idling speed of 650 rpm. The peak torque is 1966 Nm at 1900 rpm. The engine's dry weight is 948 kg, and it is based on a John Deere engine.

Fuel and Air Systems
The engine uses a direct injection fuel system with a high-pressure common rail that is electronically controlled. It is turbocharged with an air-to-seawater aftercooler for the air intake.

Cooling and Lubrication
The cooling system is closed with a heat exchanger, and it includes a gear-driven self-priming raw water pump and a coolant circulating pump. The lubrication system features a replaceable full-flow oil filter, oil dipstick, and oil cooler.

Electrical System
The engine is equipped with a 24V, 100A alternator and a 24V starter motor. It includes complete instrumentation with a key switch and alarms, and an extension cable harness with a plug-in connection.

Additional Features
Other features include a water-cooled turbocharger, water-cooled exhaust manifold, and flexible engine mounting. Optional equipment includes keel cooling adaptation, dry exhaust elbow, marine transmission adaptation kits, and additional instrumentation.

Rating and Performance
The engine is rated for up to 1000 annual operating hours with a load factor up to 35%. Full power can be used for no more than 30 minutes out of each 8 hours of operation, with the remaining time at or below cruising speed.

Performance Curves
The document provides performance curves for power at the crankshaft, torque at the crankshaft, and fuel consumption across various RPMs.

Compliance and Contact Information
The engine complies with IMO Annex VI, EPA marine Tier 3, and NRMM 97/68/EC emissions standards. For more information, contact Nanni Industries S.A.S. in France or Nanni Trading S.R.L in Italy.