• Question Cagtegory: Aeronautics
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• ## How urban air mobility work?

How urban air mobility work?

Asked on 13th December 2021 in
• 433 views
• ## What are form drag and profile drag ?

What are form drag and profile drag ?

Asked on 8th September 2021 in
• 377 views
• ## Find and compare the lift slopes for a straight wing and a swept wing with a half-chord line sweep of $$30^{\circ}$$.

A finite wing with an elliptical lift distribution has an aspect ratio of $$6$$. The airfoil of the wing has …

Asked on 12th August 2021 in
• 290 views
• ## Considering, $$\tau = 0.1$$, find the angle of attack for the wing. Also, find the induced drag for the airplane, if span efficiency factor is $$0.6$$.

An airplane is cruising at $$50\,m/s$$ at standard sea level in straight and level flight. The airplane has a wing …

Asked on 12th August 2021 in
• 271 views
• ## Find the coefficient of lift and induced drag coefficients for this wing at an angle of attack of $$6^{\circ}$$.

A finite wing has aspect ratio of $$6$$ and taper ratio of $$0.8$$. The airfoil constituting this wing has a …

Asked on 11th August 2021 in
• 287 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
• 420 views
• ## Find the velocity of air in the test section of a low speed open circuit subsonic wind tunnel which has an inlet -to-throat area ratio of $$10$$.

Find the velocity of air in the test section of a low speed open circuit subsonic wind tunnel which has …

Asked on 15th June 2021 in
• 325 views
• ## Find the lift and wave drag coefficients for an infinitely thin flat plate.

Find the lift and wave drag coefficients for an infinitely thin flat plate at an angle of attack of $$8^{\circ}$$ …

Asked on 26th March 2021 in
• 327 views
• ## Find the gliding distance of an aircraft.

Find the gliding distance of an aircraft flying at an altitude of $$1500\,m$$ with a maximum lift to drag ratio …

Asked on 3rd February 2021 in
• 331 views
Find the total drag of an airplane flying at a velocity of $$90\,m/s$$ with $$L/D$$ ratio maximum. Airplane is weighing …