Scope of the Item This Item provides a method for estimating the increment in wing drag coefficient at constant lift coefficient due to the deflection of a full-span plain flap at low speeds. Such data provide a necessary step in determining the total drag coefficient of a wing with a deflected plain flap.
ESDU 87024 C-2000 history
2000ESDU 87024 C-2000 LOW-SPEED DRAG COEFFICIENT INCREMENT AT CONSTANT LIFT DUE TO FULL-SPAN PLAIN FLAPS