Linked Questions

116 votes
9 answers
33k views

Is there a maximum possible size for an airplane?

Is there any theoretical or practical limit to the maximum number of passengers - and therefore size - one can build an airplane for?
Deschele Schilder's user avatar
42 votes
2 answers
7k views

What type is this aircraft with "inverted" wings?

A friend of mine saw this plane at Tampa Bay International Airport recently: It has an odd combination of a negative dihedral and pylonless overwing engines, all traits I've seen individually but not ...
Timpanus's user avatar
  • 2,733
18 votes
4 answers
7k views

Why does rudder cause roll?

In the few rudder incidents with the B737, rudder-freeze caused the airplane to roll. From what I know, the rudder causes yaw while the aileron causes roll. Why in the case of these accidents/...
SMS von der Tann's user avatar
16 votes
2 answers
18k views

What is the reason for the poor low-speed characteristics of sweptback wings?

I know there are advantages of swept-back wings delaying shock-wave allowing a aircraft to fly faster. However, what are the disadvantages. I know one of them is that they have very poor low speed ...
Harry Wang's user avatar
15 votes
3 answers
13k views

Why do low wing aircraft have higher dihedral than high wing aircraft?

I have noticed and read in books that low wing aircraft have higher dihedral than high wing aircraft. Dihedral is design feature for lateral stability so should be needed for both designs. So why is ...
yankeemike's user avatar
13 votes
3 answers
11k views

What are the pro/cons of polyhedral cranked wings?

Dihedral wings seems to be very common (almost if not all low-wing airliners, many modern gliders,...). Polyhedral seems to be less common and mainly found in relatively old aircraft (F4 Phatom, F4U ...
Manu H's user avatar
  • 16.5k
13 votes
5 answers
5k views

Could a plane be constructed to be fly in fixed-stick roll-stable circles?

According to https://aviation.stackexchange.com/a/12511/973 it is not possible for a plane to aerodynamically recover from a roll disturbance. Is that an inherent limitation of how planes could be ...
supercat's user avatar
  • 483
8 votes
1 answer
2k views

What is this "Supersonic French" aircraft?

To celebrate Bastille Day, Ubisoft released the below (2D) in-game charm for their game, Tom Clancy's Rainbow Six Siege. Despite frantic searching on Wikipedia, I cannot for the life of me figure out ...
V-J's user avatar
  • 327
14 votes
3 answers
3k views

Why does the Falcon 900 have anhedral wings?

Why does it have anhedral wings and not "normal" wings? Many other similar aircraft with low-wing have dihedral wings. Source: DassaultFalcon.com Edit: This is about the Falcon 900, which apparently ...
user13197's user avatar
  • 11.4k
3 votes
4 answers
4k views

Do high-wingers have dihedral?

I know that high wingers have an inherent dihedral effect. Are there any examples of high wing aircrafts with a dihedral? If so, what is the reason behind it?
Zaber's user avatar
  • 359
5 votes
3 answers
6k views

Why is the wing of large commercial jet aircraft usually located below the fuselage?

When the wing of an aircraft is located above the fuselage, the aircraft is generally considered more stable. When the wing of an aircraft is located below the majority of the fuselage, the aircraft ...
End Antisemitic Hate's user avatar
10 votes
1 answer
2k views

Other than looking cool, what is the reason behind the TSR-2's anhedral wingtips?

Pretty much what the title says. What is the purpose of the TSR-2's anhedral wingtips? I've heard someone say that they use it to counter yawing I think but is this the true reason or is it something ...
BryBuriya's user avatar
  • 307
12 votes
1 answer
3k views

In a slip or skid, how does one wing have a higher angle of attack and more lift?

I've discussed this with my instructor numerous times, and I have the concept memorized, but from an aerodynamic point of view, I can't see how the angle of relative wind to chord line is different ...
Josh Toth's user avatar
  • 235
3 votes
2 answers
5k views

What is the moderate dihedral angle for a low wing airplane?

An increase in dihedral results in a decrease of the total lift produced by the wings. I would like to know the moderate dihedral angle (in degrees) for a low wing airplane, especially the amature ...
Martins's user avatar
  • 325
-2 votes
1 answer
3k views

Is the Boeing AC-25A Banshee a real concept or a gimmick? [closed]

Could this be a feasible concept aircraft to replace the AC-130?
Dec Konroyd's user avatar

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