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Consider a finite wing of aspect ratio 4 with an NACA 2412 airfoil; the angle of attack is 5°. Calculate (a) the lift coefficient at low speeds (incompressible flow) using the results of Prandtl’s lifting line theory, and (b) the lift coefficient for \(M_{\infty}\). Assume that the span efficie
Consider a finite wing of aspect ratio 4 with an NACA 2412 airfoil; the angle of attack is 5°. Calculate …
Aircraft performance

Airplane design

lift and drag

Worldtech Asked on 13th November 2023 in Aeronautics.
- 445 views
- 1 answers
- 0 votes
Calculate lift, wave-drag and pressure coefficients of an infinitely thin flat plate which is in a Mach \(2.5\) freestream flow at an angle of attack of \(5^{^{\circ}}\), using linearized theory.
Calculate lift, wave-drag and pressure coefficients of an infinitely thin flat plate which is in a Mach \(2.5\) freestream flow …
Aircraft performance

drag coefficient

lift and drag

Supersonic airplanes

Worldtech Asked on 27th January 2022 in Aerodynamics.
- 949 views
- 1 answers
- 0 votes
What are form drag and profile drag?
What are form drag and profile drag?
drag

drag coefficient

drag force

lift and drag

Kumar59 Asked on 8th September 2021 in Aeronautics.
- 1K views
- 1 answers
- 0 votes
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. …
airfoil

lift

lift and drag

lift coefficient

lift force

Kisan Kumar Asked on 13th July 2021 in Aerodynamics.
- 2K views
- 1 answers
- 0 votes
Find the lift and wave drag coefficients for an infinitely thin flat plate at an angle of attack of \(8^{\circ}\) in a Mach \(3\) flow.
Find the lift and wave drag coefficients for an infinitely thin flat plate at an angle of attack of \(8^{\circ}\) …
drag coefficient

lift and drag

lift coefficient

Supersonic airplanes

Supersonic flow

Kumar59 Asked on 26th March 2021 in Aeronautics.
- 1K views
- 1 answers
- 0 votes
Find the gliding distance of an aircraft flying at an altitude of \(1500\,m\) with a maximum lift to drag ratio of \(8\).
Find the gliding distance of an aircraft flying at an altitude of \(1500\,m\) with a maximum lift to drag ratio …
Airplane design

drag force

lift and drag

lift force

techAir Asked on 3rd February 2021 in Aeronautics.
- 1K views
- 1 answers
- 0 votes
Calculate the lift, drag and moment coefficient about quarter chord per unit span of an airfoil which is at an angle of attack of \({7\, ^ \circ }\) with a flow velocity of \(40\, m/s\) at standard sea level conditions. The airfoil has a chord length of \(1\, m\).
Calculate the lift, drag and moment coefficient about quarter chord per unit span of an airfoil which is at an …
Aircraft performance

airfoil

Airplane design

airspeed

lift and drag

Kumar59 Asked on 4th January 2021 in Flight mechanics.
- 1K views
- 1 answers
- 0 votes
What is flaps and what are they used for?
What is flaps and what are they used for?
Aircraft performance

airfoil

Airplane design

airspeed

lift and drag

techAir Asked on 2nd December 2020 in Flight mechanics.
- 1K views
- 1 answers
- 0 votes
What is the difference between static and dynamic stability of an aircraft?
What is the difference between static and dynamic stability of an aircraft?
aeroelasticity

Aircraft performance

Airplane design

lift and drag

Worldtech Asked on 18th November 2020 in Flight dynamics.
- 2K views
- 1 answers
- 0 votes
Poll Induced drag is minimum for which type of a wing planform
Induced drag is minimum for which type of a wing planform
Aircraft performance

Airplane design

drag coefficient

drag force

lift and drag

Kisan Kumar Asked on 17th November 2020 in Aerodynamics.
- 715 views
- 4 answers
- 0 votes

Poll Induced drag is minimum for which type of a wing planform

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