Specifically the last worked very well on this one fan that would get noisy after a while. I had 1/2 liter left of synthetic engine oil and tried a drop of that and its now been 1 year and fan is ...

MODANE, FRANCE—Wind tunnel evaluations are giving Safran confidence about meeting the targeted noise levels of the RISE open-fan engine demonstrator, company executives said during a visit to an ONERA ...

I think you can safely set the minimum speed of your fans to about 20%, this shouldn't result in any additional noise but will give you a baseline minimum level of airflow, which is good to keep any ...

When temperatures drop, the viscosity of the engine oil increases, meaning it becomes thicker. This change affects lubrication within the engine and its components, leading to increased friction among ...