Noise Level Prediction for Small Single-engine Propeller Fixed-wing Aircraft

LIU Long

doi:10.7643/issn.1672-9242.2026.09.007

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Equipment Environmental Engineering ›› 2026, Vol. 23 ›› Issue (9) : 67-73. DOI: 10.7643/issn.1672-9242.2026.09.007

Special Topic—Structural Dynamics of Aviation Equipment

Noise Level Prediction for Small Single-engine Propeller Fixed-wing Aircraft

LIU Long

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Abstract

The noise characteristics are one of the important features for evaluating whether civil aircraft meet airworthiness requirements and environmental protection requirements. Finding appropriate methods to achieve airworthiness certification noise prediction enables engineers to identify potential noise certification risks during the aircraft model design phase, make timely improvements and optimizations, reduce the probability of repeated flight tests and the risk of model design failure in the later stages, and save related costs. A study was conducted on the semi-empirical noise level prediction and verification method for small single-engine propeller fixed-wing aircraft. By selecting sample aircraft models, the undetermined parameters in the prediction model were iterated and determined based on the key parameters and measured noise results. The model was used to predict the airworthiness noise level of the target aircraft. An airworthiness noise prediction result based on the prediction model was obtained, and the predicted results were compared with the measured results, with the prediction error below 6%. The accuracy of the model in predicting the airworthiness noise level of small single-engine propeller fixed-wing aircraft is ultimately verified.

Key words

small aircraft / single-engine aircraft / fixed-wing / propeller / noise prediction / noise certification

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LIU Long. Noise Level Prediction for Small Single-engine Propeller Fixed-wing Aircraft[J]. Equipment Environmental Engineering. 2026, 23(9): 67-73 https://doi.org/10.7643/issn.1672-9242.2026.09.007

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