Questions tagged [wing]

For questions on an airplane's main wing

Filter by
Sorted by
Tagged with
3 votes
0 answers
59 views

What is the aerodynamic impact of the curved/crescenteric wing of the Boeing 787?

From certain angles (see pictures below), the wing of the Boeing 787 seems almost curved/crescenteric in shape, particularly closer to the wing-tip. While the Boeing 787 makes use of "raked ...
user avatar
1 vote
2 answers
76 views

Does tip dihedral have lesser increase in lift over a full dihedral wing?

I have read some articles mentioning that a full dihedral reduces the lift produced by a wing. So what about a tip (or cranked) dihedral that has the angled part starting from the mid-wing rather than ...
user avatar
0 votes
0 answers
23 views

How would I draw the Max Thickness Sweep Angle on a wing from a Top View?

I have the Max Thickness Sweep Angle, Wing Tip and Root Chord Length, and Max Thickness to Chord Ratio defined. However, I am having trouble drawing the Max Thickness Sweep Angle on the wing because I'...
user avatar
4 votes
1 answer
106 views

How does Condensation Affect Lift?

Here are two pictures of condensation happening above the wing: The condensation happens because the pressure drops above the wing which in turn causes the temperature to drop. When the temperature ...
user avatar
4 votes
2 answers
228 views

Besides forward swept wings, which are the other most unstable wing configurations?

I know that forward swept wings are unstable and all, and that's one of the reasons they aren't vastly used in planes in general. However, I would like to know more about other types of wing ...
user avatar
  • 453
1 vote
2 answers
102 views

What methods are used to calculate the geometry needed to obtain a bell-shaped lift distribution?

In aerodynamics, what methods do people use to calculate the geometry of a wing (and body) needed to obtain a bell shaped lift distribution? Please go into as much detail as possible for a stack ...
user avatar
8 votes
2 answers
746 views

Why does the hardpoint mechanism on sweep wings produce a contact trace in front of the axis?

The basic structure and photos have already been explained on this site and on Wikipedia: How does a variable-sweep-wing aircraft keep wing-mounted payloads straight? Variable-sweep wing, Wikipedia ...
user avatar
2 votes
1 answer
74 views

Airfoil Sections orientation on a Swept Wing

The swept wing on a typical airliner consists of multiple airfoil sections. Are these sections oriented perpendicular to the wing leading edge, or parallel to the longitudinal axis of the fuselage? ...
user avatar
4 votes
1 answer
264 views

How to estimate the ribs spacing?

I would like to know what is the general logic behind the choice of the rib spacing in the thin-walled load bearing structure of a straight or swept all-metal wing? Is it the global or local ...
user avatar
8 votes
1 answer
195 views

Improvements in supercritical airfoil design from 1980 - 2000

I originally asked a question (Comparisons between the A340 and 747-200 wing: sweep angle and span) about the technological developments which allowed the Airbus A340 to have a wing with greater ...
user avatar
3 votes
3 answers
143 views

How to calculate sink rate from wing measurements

First of all, sorry to bother you when I am coming from a bird rather than aircraft background. I have two questions that I'm struggling to get an answer for. Firstly, how is sink rate calculated (...
user avatar
1 vote
1 answer
123 views

What naca airfoil is the closest to airfoils used by modern airliners?

I know boeing and airbus use propietary airfoils, but is there a single naca airfoil that is fairly representative of what modern airliners use?
user avatar
  • 2,252
-1 votes
2 answers
111 views

Are these units correct for Hp/W

using the table provided, and how it says the Velocity should be in mph, is it correct to say that the units of Hp/W from this table is mph also?
user avatar
  • 9
0 votes
2 answers
139 views

How to actually draw a wing properly

I’ve been trying to draw a wing with data such as Ctip, Croot, b, lambda (Taper ratio) and S What I’m struggling with is how to actually start with this if we don’t know the angle created by the ...
user avatar
  • 21
0 votes
2 answers
54 views

Does slipstream on a single engine aircraft create a slight difference in wing strut loads during TO and Climb Out?

If right rudder is used to counter yaw caused by propellor slipstream that hits the fin, does that same slipstream try to lift the left wing and push down on the right wing? If so are the strut loads ...
user avatar
-1 votes
1 answer
44 views

Aerofoil Lift curve [closed]

so I’m trying to identify if my aerofoil of choice, 24xx can generate enough lift. I’ve been trying to find a Clmax against angle of attack curve online but I can’t seem to find one? Anyone know any ...
user avatar
  • 13
2 votes
2 answers
151 views

How do I calculate where a wing is most likely to break?

I want to make a delta wing out of carbon fiber, but I do not know how many carbon fiber layers would be needed to prevent the wing from breaking due to shear stress. What would be the calculations ...
user avatar
23 votes
1 answer
3k views

How would a belt sander wing perform?

This is a theoretical question, the belt sander is an analogy to help visualize. How would a rectangular wing that is able to make its outer skin circulate around the airfoil perimeter perform? ...
user avatar
  • 4,023
-1 votes
2 answers
152 views

Why airflow travels faster on upper wings?

I have been looking for solutions and come up with two popular explanations: Conservation of mass / Continuity For a positive-cambered wing, the streamlines would be compressed/converged at the ...
user avatar
3 votes
6 answers
167 views

How does the vertical height of the wings on a plane affect flight relative to its position? E.g., how does a higher high wing affect flight?

I think I understand how a high wing differentiates from a mid wing or a low wing; what I am asking is how, for instance, a very high high-wing makes itself unique in flight from a very low high-wing. ...
user avatar
1 vote
3 answers
196 views

How has Computational Fluid Dynamics improved commercial airliner wing design?

Starting the 1980s, extremely powerful computational fluid dynamics software has been used to design wing sections and whole wings. I am going to focus on the Boeing 777 as an example of CFD applied ...
user avatar
1 vote
1 answer
110 views

Is a wing lift distribution smooth in the presence of a prop?

Wings designed to minimize induced drag have a smooth distribution of lift from root to tip. Whether elliptical for span constrained wings or more bell shaped to minimize structural weight, ideal ...
user avatar
  • 16.6k
9 votes
2 answers
3k views

How have engineers managed to increase commercial airliner wing aspect ratios over time?

Over time, the wing aspect ratios of commercial airliners have increased. For evidence ,see the following data: 1980s: Boeing 747-400: 7.91, Boeing 757-200: 8.0 Boeing 767-300: 8.0 Airbus A310: 8.8 ...
user avatar
0 votes
0 answers
44 views

What is the effect of aspect ratio on cruise velocity?

Does the Aspect ratio affect the Maximum cruise velocity please? I was thinking it wouldn’t as Aspect ratio= b^2/S. If I wanted to go quicker I could just increase my span and decrease S?
user avatar
3 votes
1 answer
184 views

What are the benefits of using spoilers/airbrakes for lateral control as opposed to ailerons on the Rockwell B-1b?

The Rockwell B-1b uses pairs of airbrakes/spoilers on each wing in replacement of ailerons for the lateral control of the aircraft. Was there a particular advantage to this because of its variable ...
user avatar
  • 187
1 vote
1 answer
132 views

Aspect ratio of an elliptical wing

I am looking into elliptical wings at various aspect ratios and my intuition tells me that an elliptical wing with aspect ratio of one is a circle, meaning the chord and the span will be equal. But, ...
user avatar
  • 11
3 votes
1 answer
145 views

What is the NACA Series of the Rockwell B-1b's wing design?

I can't find any information about the airfoil of the Rockwell B-1b. It's listed as a NACA 69-190-2, which doesn't follow the conventional format of the 6-Series airfoils. I'm assuming its a design ...
user avatar
  • 187
0 votes
2 answers
82 views

How does forward sweep of a wing affect the formation of shock waves?

I understand that sweeping a wing back reduces the component of velocity perpendicular to the wing and can allow it to travel at subsonic conditions, and reduce the formation of shock waves, even if ...
user avatar
6 votes
2 answers
2k views

Why are there no high wing Canard airplanes?

Just had a thought about canard airplanes while looking at the Tu-144 that features a canard surface on the top of its fuselage. Are there any high-wing aircraft with a top or bottom mounted canard? ...
user avatar
  • 715
14 votes
1 answer
3k views

What are these paint patches on this 787-8?

What are these paint patches on this British Airways 787-8 (G-ZBJB)?
user avatar
  • 6,467
7 votes
6 answers
2k views

Can induced drag be negative?

For an aircraft in straight and level flight, lift-induced drag is the horizontal component of the force perpendicular to the wing chord. Positively cambered aerofoils generate lift starting at small ...
user avatar
-1 votes
1 answer
138 views

which is better for stability between the delta and rectangular wing designs? [closed]

building a minuscule version of an airplane and need to know between delta and rectangular designs which would be better. I don't need any other designs, just delta and rectangular. Tailless. Which ...
user avatar
1 vote
1 answer
106 views

Could the center of pressure be not on an aircraft?

I have created the outer mold line of a blended wing body drone and have put it through Ansys Fluent. Using SST k-omega turbulence model and 40 m/s of airspeed. However, the output from the program ...
user avatar
26 votes
6 answers
6k views

Do airplanes really expose their internal wires and electronics like this on the wings when braking?

While watching a video today about airplanes and how they have little thingies on their wings to make them come to a stop much quicker than otherwise, I noticed something very odd: Are those cables ...
user avatar
-2 votes
2 answers
100 views

Could ramjets be implemented on sub/super-sonic aircraft wings due to the shockwaves generated by them?

Well, I'm a ignorant on aerodynamics and such, but let me explain first: In this video (it could be just a video, but) it is said that wings are angled backwards to avoid supersonic shock waves ...
user avatar
  • 185
5 votes
1 answer
367 views

Why did Concorde have a large anhedral?

Why does Concorde and many other deltas have their wings bent down?
user avatar
  • 910
3 votes
2 answers
140 views

Once pressure distribution is established, why soft wing at zero AoA without battens can't maintain shape?

Imagine we have soft wing with curved battens installed in wind tunnel set at zero AoA.Wing has camber,so it produce lift. If we remove battens from wing during wind tunnel test when wing produce lift,...
user avatar
  • 1,134
3 votes
1 answer
110 views

Does use of flaps or ailerons affect the aerodynamic forces distribution on the wing area before them?

Assume I want to use the flaps or ailerons at a specific altitude for some maneuevers on an aircraft. We know that the overall aerodynamic forces like lift and drag on an aircraft wing will change ...
user avatar
1 vote
1 answer
428 views

How should I decide on the type of stringer to be used in an Aircraft's wing and fuselage?

I am trying to add stringers on the skins of an aircraft's wing as well as fuselage, for the same reason why they are present in most of the aircrafts i.e. to resist bending (and a possible buckling ...
user avatar
0 votes
2 answers
156 views

How is the wing's longitudinal position determined?

What I mean is, for example the MD 80 aircraft have a wing placed way back near the engine why not put it on the center? but the Boeing 737 have a centered wing. I'm asking this because I love to make ...
user avatar
  • 1
0 votes
1 answer
152 views

Does the nacelle strut experience reaction forces due to lift, drag, thrust, weight of engine during cruise flight?

Cruise flight indicates that total lift and weight of aircraft cancel and thrust forces generated cancels with total drag forces. However, I am looking closely at the nacelle instead of the whole ...
user avatar
0 votes
1 answer
176 views

Why aren't HLFC panels mounted on wing?

I watched The Insane Engineering of the 787 by Real Engineering. He just gave short detail about the HLFC(Hybrid Laminar Flow Control) panel and mentioned their purpose isn't available online. I found ...
user avatar
  • 1,475
1 vote
2 answers
409 views

What is the typical wing twist angle at the wing tip for a commercial jet?

I'm trying to find this information for commercial jets. It is nowhere to be found. Does anyone know typical values?
user avatar
2 votes
2 answers
189 views

Spar-rib-stringer spacing and their thickness in relation to the wingskin thickness

I am solving a wing structure for normal modes using SOL103 in NASTRAN. Since I am beginner, I started with just the wingskin (lower and upper wingskins) but that results were far from what was ...
user avatar
  • 21
1 vote
1 answer
176 views

Can buckling of wing skin panels occur without external compressive loads?

State whether True or False: In general, the buckling of thin and slender structures occurs under applied axial compressive stresses. In the case of wing skin panels, they can fail in buckling even if ...
user avatar
0 votes
2 answers
218 views

What is the minimum engine hp needed to fly a light aircraft with an adult [closed]

And also the wing size, propeller sizer, body size, ruder, elevator needed. I might sound stupid; I am a beginner and I just want to these basis.
user avatar
1 vote
1 answer
217 views

Wingwalking at cruise on a jetliner [closed]

I have always wondered what the minimal equipment and best strategies would be for an average person to survive as much time as possible in cruise on a standard jetliner. Assume temperature is 20 c. ...
user avatar
1 vote
1 answer
312 views

What is the dihedral angle of the A380?

It is understood that the A380 has a sweepback angle of 33.5 degrees and a taper ratio is approximately 0.3. However, what is the dihedral angle of this aircraft?
user avatar
  • 103
0 votes
0 answers
147 views

Does the A220-300 use supercritical airfoils in its wing?

I'm curious about whether or not this modern airliner uses supercritical aifoils in its wing, or just conventional NACA-style airfoils.
user avatar
1 vote
0 answers
74 views

Wing and horizontal/vertical tailplane airfoil type and relative thickness?

I've been searching for data on the airfoil type (namely if they are supercritical, aft-loading etc.) and relative thickness (average or in different positions) of the empennage (both horizontal and ...
user avatar

1
2 3 4 5
14