What is a wet oil sump pump, apposed to a dry oil sump pump? We all know the engines we fly need a constant amount of oil used for lubrication and cooling during operation. But after we deposit the oil into the engine what happens next? With a wet sump system this oil flows over the engine components and is stored at the base of the critical parts as an oil pan. An oil pump then transfers the oil back to the necessary areas allowing the oil to spill down again to the oil pan. Everything stays wet and happy during the process.
The dry sump actually takes the oil out of the engine casing after its process is complete to a reservoir on the outside casing as an accessory box, and injecting oil back to the engine from the reservoir.
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