• Question Tag: airfoil
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• Find the lift per unit span and the circulation at an angle of attack of $$4^{\circ}$$, for this airfoil.

A NACA 4421 airfoil having a chord length of $$2\,m$$ is flying at an velocity of $$70\,m/s$$ at an altitude …

Asked on 22nd July 2021 in
• 24 views
• Find the location of the aerodynamic center.

An airfoil has a lift coefficient and moment coefficient of $$-0.35$$ and $$-0.050$$ about quarter-chord at $$-6^{\circ}$$ angle of attack. …

Asked on 22nd July 2021 in
• 25 views
• Find the angle of attack for this airfoil, if the lift per unit span produced is $$1400\,N$$.

A NACA 0012 airfoil having a chord of $$2.3\,m$$ is in an airstream velocity of $$70\,m/s$$ at standard sea level …

Asked on 22nd July 2021 in
• 24 views
• Can an airfoil fly upside-down ?

A positively cambered airfoil has a zero-lift angle of $$-3.5^{\circ}$$. The lift slope for this airfoil is $$0.12$$ per degree. …

Asked on 13th July 2021 in
• 51 views
• Find the coefficient of pressure at a point on the wing.

Find the coefficient of pressure at a point on the wing where the velocity is $$58\,m/s$$. The airplane is flying …

Asked on 14th January 2021 in
• 226 views
• Calculate the pressure coefficient at a point on the airfoil.

Calculate the pressure coefficient at a point on the airfoil where the pressure is $$8.9 \times 10^4\,N/m^2$$. Airfoil is …

Asked on 12th January 2021 in
• 289 views
• Calculate the lift, drag and moment coefficient about quarter chord per unit span of an airfoil.

Calculate the lift, drag and moment coefficient about quarter chord per unit span of an airfoil which is at an …

Asked on 4th January 2021 in
• 202 views
• Symmetrical and cambered airfoil

What is the difference between symmetrical and asymmetrical /cambered airfoil ?

Asked on 17th December 2020 in
• 669 views
• Airfoil terminology and NACA series of airfoil nomenclature.

Define airfoil terminology and NACA series of airfoil nomenclature.

Asked on 10th December 2020 in
• 216 views