Articles by Hasan Guclukaya

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Wing tip vortices

Wing-tip vortices are created by span-wise airflow over the upper and lower surfaces of a wing/aerofoil that meet at the wing tips as turbulence and therefore induces drag, especially on a swept wing. Span-wise airflow…


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Drag

What is drag? Drag is the resistance to motion of an object (aircraft) through the air. Deline the two major types ol drag and their speed relationship. Profile and induced drag = total drag Profile…


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What is Lift ?

Lift What is lift? Lift is the phenomenon generated by an aerofoil due to pressure differences above and below the aerofoil. Note: An aerofoil is cambered on its topside and flat on its bottom side….


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Forces/Aerofoil

What are the forces acting on an aircraft in flight? Drag, thrust, lift, and weight. When thrust and drag are in equilibrium, an aircraft will maintain a steady speed. For an aircraft to accelerate, thrust…


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What is bypass ratio?

Bypass ratio in an early single- or twin-spool bypass engine is the ratio of the cool air mass flow passed through the bypass duct to the air mass flow passed through the high-pressure system. Typically,…