What are cowl flaps and how to use them?
Cowl flaps are small doors located in the bottom of the engine cowling that allow for greater cylinder cooling during takeoff and climb.

Cowl flaps are found on high-performance aircrafts where larger engines with more horsepower generate lots of heat.

Cowl flaps are used during the take off and climb phases. Their use comes at the cost of increasing drag. Cowl flaps  should be closed during cruise, descent, and landing.

The pilot operates the cow flaps via a control within the cockpit.

Source: compiled and abstracted from various sources on the internet, for quick and easy reading.


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