Linked Questions

1 vote
0 answers
468 views

How do you determine the lift coefficient of a finite wing using the coefficient of an infinite one? [duplicate]

How assuming I know the lift coefficient of an airfoil/infinite wing, how do I then use this value to calculate the lift coefficient of a finite wing? Please quote your sources. Many thanks,
user18782's user avatar
2 votes
1 answer
89 views

What are some features of a wing, which effects its lift coefficient other than its sectional view? [duplicate]

What geometrical features of a lifting surface apart from which airfoil it has, I mean the ones visible from the top and front view of a wing (for ex: its span, AR, sweep, dihedral etc.) effects its ...
Kozakov's user avatar
  • 467
30 votes
10 answers
10k views

What is ground effect?

We've all heard the "acts like a cushion of air" explanation tossed casually around by CFIs. There's also plenty of books and reference materials that give a detailed, accurate, and complete ...
Steve V.'s user avatar
  • 23.3k
18 votes
4 answers
39k views

What is the performance of a flat plate wing?

By flat plate I mean this: Source: Physics.SE Low performance indeed, but how much low? How would: The angle of attack, The speed range, The turn capability, The fuel consumption, Or other ...
mins's user avatar
  • 74.5k
17 votes
2 answers
6k views

Why is the coefficient of drag for straight wings at supersonic speeds lower than for swept wings?

Why is the coefficient of drag of a straight wing lower than the coefficient of drag of a swept back wing at higher supersonic speeds (above, say, Mach 2)?
Adder's user avatar
  • 1,452
5 votes
5 answers
8k views

How does the angle of attack vary in turns?

I read somewhere that when the aircraft banks to turn, its angle of attack increases.Since angle of attack is the angle between the relative wind and chord line, how does turning increase it? Is it ...
user2927392's user avatar
  • 2,359
6 votes
2 answers
2k views

Is there a parameter that links the areas of the fuselage and control surfaces? [closed]

Do aircraft designers look at the ratio of how much fuselage surface area can be loaded onto a given unit of wing and tail surface area including elevator, aileron, rudder etc? (Possibly, the surfaces ...
Krishnaraj Rao's user avatar
11 votes
2 answers
2k views

Why do delta wings generate less lift at a particular angle of attack compared to straight wings?

I simulated a delta wing and a straight wing in xflr5 with the same profile, wing area and airspeed (very low airspeed. around 10 m/s. it's for a model aircraft). The straight wing was operating at ...
Sherlock_Dumbledore's user avatar
8 votes
2 answers
786 views

How much does the fuselage of an airplane contribute to yaw stabilization?

Obviously considering that (almost) every plane has a vertical stabilizer, probably not, but for a relatively long aircraft does the fuselage measurably contribute to the yaw stabilization relative to ...
Shack de Shnaek's user avatar
3 votes
3 answers
3k views

Why stall on 2D faster than 3D?

why cl on 2D is better than 3D. and why cl 2D stall faster than 3D? what happens when CP continues to move forward on the wing. and what happens when CP continues to move forward on the elevator.
Ade Firmansyah's user avatar
6 votes
2 answers
1k views

How to trim in level flight when speed increases?

What is required to happen to control surfaces and trim tabs to remain trimmed in straight and level flight, as speed increases? (for a GA propelled aircraft) My manual tells me that the elevator ...
Ze Jibe's user avatar
  • 265
4 votes
1 answer
1k views

Why are the aerodynamic characteristics of a finite wing different from the properties of its airfoil section?

Why are the aerodynamic characteristics of a finite wing different from the properties of its airfoil section?
B737lover's user avatar
6 votes
1 answer
2k views

How does rudder size influence its ability to produce lateral lift?

Does anyone know how the area, height and width of a rudder affect how well it provides lateral lift? I've heard that the most effective rudders are around 35% of the vertical stabiliser MAC but is ...
Will Patterson's user avatar
2 votes
1 answer
4k views

What is the relation between the Lift Coefficient and the Angle of Attack?

I'm trying to understand the relation between the Lift Coefficient and the Angle of Attack using PEP software for the A320 IAE. However, I notice that often for a given Angle of Attack, there could be ...
Afe's user avatar
  • 1,501
4 votes
2 answers
2k views

What is the relationship between angle of attack and wake turbulence?

It is said that when the preceding airplane is heavy, clean, and slow, wake turbulence is much hazardous due to greater angle of attack is requried. However, why does increasing angle of attack result ...
Mun's user avatar
  • 1,837

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