1results about How to "Improve starting performance" patented technology

The embodiment of the application provides a civil large-bypass-ratio turbofan engine windmill performance flight test method, and relates to the technical field of airplane engines. The civil large-bypass-ratio turbofan engine windmill performance flight test method aims at improving the problem that the windmill starting performance of the civil large-bypass-ratio turbofan engine needs to be further improved. The civil large-bypass-ratio turbofan engine windmill performance flight test method comprises the following steps: obtaining a windmill performance flight test point; controlling a test engine to perform a windmill performance flight test according to the priority of the windmill performance flight test point; and recording windmill performance according to the windmill performance flight test. Through the civil large-bypass-ratio turbofan engine windmill performance flight test on a flight platform, an engine overall performance windmill state model is checked and corrected, and the windmill starting performance of the civil large-bypass-ratio turbofan engine is improved.