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Unfortunately, noise is an inherent property of the propellers since it is moving air. There are methods that are used to make them quieter but usually this is for military applications and too costly. However, this is a hybrid plane so it acts like a quadcopter when it hovers vertically at a set point. It acts like a plane when its traveling long distances. Admittedly, RC planes can get pretty loud but it should be substantially quieter when it is coasting at constant altitude compared to a hovering drone.