Why doesn't rain impede the function of jet engines?

Modern jet engines get their high efficiency by combusting the fuel at very high pressure, and then expanding the resulting gasses a great deal. The larger the expansion ratio, the more mechanical work can be extracted from the gas. read more

Rain can indeed cause problems in engine functions if the situation is mishandled by the pilots. I can think of two major of those issues. One is icing and the other is a flame out. If you fly a jet engine aircraft with improper icing equipment you can get into trouble. read more

Installing a wire mesh on the front of a jet engine will have following consequences- The mesh would interfere with the proper flow of air and will make it highly turbulent, which in turn will make the journey a bit uncomfortable (but not too dangerous except in rare cases of extreme turbulence). read more

While rain can have an influence on the function of a jet engine, it is typically not a significant effect. The majority of storms produce light rain or snow that has little if any impact on an engine. read more