Courtesy, Rolls-Royce Rolls-Royce (RR) has completed testing of the latest version of its new two-shaft engine core. Tests included operation of a lean burn combustion system in simulated bad weather during which the core, known as Core 3/2d, operated safely and performed windmill re-lights in conditions equivalent to a tropical hailstorm. RR also carried out emission and performance measurements as well as functional tests. The tests—which are part of the efficiency, ...

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