Linked Questions

28
votes
9answers
37k views

Can a large passenger aircraft recover from a stall?

In fighter aircraft, we know that they have good enough of maneuverability. But in case of a passenger airplane, if a stall happens is the aircraft maneuverable enough to recover from it?
19
votes
6answers
6k views

Is it practical to intentionally stall an aircraft to execute a fast, controlled descent?

An MD-11 had an onboard fire, but had to request more flying distance at least partly to execute a safe descent (and to dump fuel). It ended in tragedy. In another accident, an A330 descended 30,000 ...
31
votes
5answers
48k views

What are the advantages of a forward-swept wing over a rearward-swept wing?

What are the advantages of a forward-swept wing vs. a rearward swept one? Image credit: NASA Image credit: Paul Maritz / Wikimedia
17
votes
6answers
10k views

What is the reason of having an Angle of Incidence on an airplane?

I know that the angle of incidence is the angle between the chord line of the wing and the longitudinal axis of the fuselage. I know that it doesn't change in flight because it is fixed. And usually,...
19
votes
5answers
9k views

Is it possible to stall a plane so badly that the nose refuses to go down due to lack of airspeed?

So basically, a stall from a high AoA to the point that the entire plane just falls with the rear end pointing straight down? Because if wind is no longer passing over the wings, then this includes ...
28
votes
4answers
28k views

How do conventional and T-tails differ?

What design considerations go into the decision between conventional tails and T-tails? Functionally the horizontal stabilizer/stabilator are the same in both cases, providing negative lift, the ...
10
votes
4answers
2k views

Why do the C-141 and C-5 have T-tails?

Both the C-141 Starlifter and C-5 Galaxy have T-tails, where the horizontal stabilizers and elevators are mounted on top of the vertical fin rather than on the sides of the aft fuselage. T-tails are ...
10
votes
3answers
2k views

Why does the MiG-15 have a cruciform tail?

The horizontal stabilizers of the MiG-15 are halfway up the tail. This is called a cruciform tail. Why did they put them there? Why not a T-tail or the normal tail where the stabilizers are on the ...
8
votes
3answers
3k views

How is a wing designed to be stall or spin proof?

Yeah, it sounds like two questions, but I suspect the answers are very closely linked (or maybe even have the same answer.) I was told in this question that trainer planes are often designed to be ...
7
votes
1answer
2k views

Why are aircraft designed so that the wing stalls before the tail?

I read somewhere that conventional aircraft are designed so that the main wing always stalls before the tailplane. Why is that? My concern is that if the wing stalls, suddenly the tail will push the ...
7
votes
2answers
3k views

Why do F16's have anhedral tail wings?

I just wonder why F16's have anhedral tail wings? Is it kind of a design choice to increase maneuverability by compromising stability?
7
votes
1answer
2k views

Why do forward-swept winged fighters have the main wings in the back?

These are the only 2 fighter jets I know of with forward-swept wings. (Su-47 and X-29, they're both still experimental). As you can see, they both have their wings in the back, not the middle. Why is ...
2
votes
2answers
307 views

Is there some technology which will help in stall recovery?

Although rare, it seems that there has been a number of cases where airliners have crashed as a result of a high altitude stall. I tend to picture this as entailing a long, uncontrolled descent where ...
4
votes
2answers
307 views

What solutions are there against deep stalls?

What solutions are there against deep stalls? According to SKYbrary: Aircraft with a T-tail design are often configured with a Stick Pusher system to help prevent the mainplane angle of attack ...
4
votes
2answers
1k views

Stalls: which flight control surface is effective last?

In an aerodynamic stall, which flight control surface (limited to ailerons, elevators and rudder) remains effective for the longest period of time during the stalling condition? In other words, which ...

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