This site uses cookies to offer you a better browsing experience. By clicking Approve, you consent to the use of cookies on your device as described in our privacy notice.
The cowl (from the Latin cuculla, meaning a hood) is an item of clothing consisting of a long, hooded garment with wide sleeves. Originally it may have referred simply to the hooded portion of a cloak.he cowl (from the Latin cuculla, meaning a hood) is an item of clothing consisting of a long, hooded garment with wide sleeves. Originally it may have referred simply to the hooded portion of a cloak.
The forward one-third of the nacelle, termed the inlet cowl, is the smoothly contoured opening that directs air into the engine's fan and compressor blades. While the inlet is primarily composite, the leading edge, referred to as the lipskin, is often metal because of the potential for damage from ground vehicles or debris kicked up during landings. The inlet cowl typically has a built-in de-icing system, heated by hot air from the engine to prevent ice buildup. Making up the middle third is the fan cowl, the cylindrical sleeve that covers the fan and compressor as well as the combuster portions of the engine.