Questions tagged [maneuver]

Questions about controlled changes to the flight path or a series thereof.

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86
votes
1answer
7k views

What is this plane flying in overlapping circles pattern doing?

I have seen this Beechcraft Super King Air coming from France near Valenciennes and flying in circular patterns over a zone of Belgium for 2 days in a row now. What is it doing, some kind of aerial ...
57
votes
3answers
15k views

Did we get closer to another plane than we were supposed to, or was the pilot just protecting our delicate sensibilities?

Yesterday, April 28, 2019, I was flying on Alaska flight 557 from LAX to PDX. About an hour into the flight (near the California/Oregon border) I was looking out the window and saw a jet travelling ...
34
votes
8answers
11k views

Why do airplanes bank sharply to the right after air-to-air refueling?

Whenever I see videos on YouTube they bank really sharply to the right after disconnecting from the tanker. Why wouldn't they do a more shallow 30-degree bank? See this video for reference:
30
votes
3answers
21k views

What is the difference between a barrel roll and an aileron roll?

I was going through social media and I came across this GIF image that showed a plane doing some sort of roll. It was labeled "Barrel Roll" but in the comments to the post, someone said that it was ...
21
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7answers
5k views

As a plane gets slower, why does a certain bank angle make you turn faster?

In the video "Maneuvering during Slow Flight" the narrator states that while flying slow the airplane will be less responsive to aileron and other control inputs. He also says that the plane will turn ...
20
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6answers
6k views

Can a plane bank without turning?

Can planes bank without turning, and if so, how is it possible? A plane's wing is designed to naturally create lift; the explanation for that is that the greater speed of the air moving over the wing ...
18
votes
2answers
2k views

When does the use of afterburners save fuel?

An afterburner uses a lot more fuel for a little more thrust (rule of thumb: 50% more thrust for 5 times the fuel flow with full dry power). Is a flight maneuver possible where using the afterburner ...
16
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4answers
11k views

Why is Russian super-maneuverable thrust vectoring more prevalent than American?

Based on the sheer number of super-manouverable thrust vectoring Russian fighter jets, it seems that Russia has put more effort into developing thrust vectoring for enhanced maneuverability than the ...
16
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3answers
2k views

Does adding flaps during ground roll perform better in short-field takeoff?

In most POHs, the flap configuration for short-field is usually recommended as partial flaps, for instance 10˚ for C172. I remember the arguments are that full flaps would reduce the acceleration ...
15
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4answers
12k views

How can an aircraft hover almost vertically?

(Source: https://fat.gfycat.com/) The aircraft in this GIF (although being an RC plane) seems to be flying vertically, just meters above the ground. How is this possible? How is it possible to control ...
14
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5answers
7k views

Why did my LGA-ORD flight make an S-shaped turn round the time it was passing a storm?

On a recent United UA1709 flight into Chicago (hit by a heavy storm at the time), I felt a noticeable descent, combined with two wide banks around 1 hour before landing. Looking at the flight path, I ...
14
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6answers
2k views

Is it possible to perform a spin recovery in IMC?

In other words, after some training, is it possible to recovery a spin solely by relying on instruments? If using a vacuum-pump traditional attitude indicator, I assume the answer is no, since there ...
14
votes
1answer
3k views

Are 0g pushovers in a C172 safe/legal?

I see YouTube pilots do it all the time, but I’m wondering how safe this maneuver really is given the fuel is a gravity fed system. Also, is it legal?
13
votes
6answers
14k views

What is the difference between a forward slip and a side slip?

I am having a hard time understanding what differentiates the two types of slip. I understand that in a forward slip, the longitudinal axis is tilted with respect to the flight path, whereas in a side ...
13
votes
2answers
5k views

Why is this plane flying a circular track?

Came across this on flighradar24 recently. It shows a jet making a very strange pattern. I would normally expect it to be some sort of aerial survey but seems unlikely in such a large aircraft at such ...
13
votes
1answer
4k views

What is this turn called and how is it performed?

I've found pictures and videos of jets rotating 90 degrees so that one wing points straight down to the ground and the other is straight up, then they suddenly turn away from their course while ...
13
votes
3answers
1k views

Is a slip an intentional consequence of a cross-control?

In flight training, you're always told not to cross-control, (for example, rolling right aileron, and stepping on the left rudder), but it seems to me that is exactly what a slip is doing. Is it that ...
13
votes
1answer
665 views

How does an airplane do a Kulbit manoeuvre?

Some time ago, I came across a GIF of a Russian military airplane doing a Kulbit manoeuvre (Probably for showoff). How, in terms of control surface movement, does an airplane to the Kulbit? Source: ...
12
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2answers
3k views

Why does the Sukhoi-30 MKI have both canards and conventional horizontal stabilizers?

I believe the Sukhoi-30 actually has 3 means of altering pitch and roll - canards, horizontal stabilizers, and thrust vectoring. Image courtesy www.mars.slupsk.pl What is the point of this? Does it ...
12
votes
1answer
1k views

What is the meaning of “Docile pitch behavior” in the context of Pugachev's Cobra?

In another answer on SE Aviation it is mentioned that the ability to perform Pugachev's Cobra in a non-thrust-vectored aircraft needs "docile pitch behavior of the airframe up to approx. 110° angle ...
11
votes
1answer
1k views

Is it possible to “take a bullet [missile]” for another plane as shown in the movie Air Force One?

In Air Force One a fighter jet maneuvers between a missile and the president's plane, as shown in this clip. Is such a maneuver possible? If not, what could be done in that situation?
11
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2answers
1k views

How do pilots make rudder inputs during negative G flight?

During negative 'G' flight, the forces on the pilot (or pilots) will tend to push their legs up and away from the rudder pedals on your airplane. Needless to say, this is not conducive to making ...
10
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3answers
1k views

How does turn radius change with velocity between Vm and Vs, as in a 180 degree turn in a canyon?

I just heard a briefing on mountain flying, and it was stated that the first thing, or the most important thing to do in the event you are unfortunate enough to find yourself in a blind canyon with no ...
10
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2answers
2k views

How does a fighter “thump” an intercepted aircraft?

In P&E Never Again: A Thump on Final, commercial pilot Mike Mercer describes an encounter with an F–16 shortly before rounding out to land. Without warning, the Baron abruptly yawed 15 degrees ...
10
votes
2answers
2k views

What is a “departure” in the context of flight testing / maneuvers?

I was reading about the F-35 flight tests and it mentions a "departure" at a couple of places. What does that word mean in this context? I understand spins and stalls but what's a "departure"? AF-...
9
votes
1answer
712 views

How tight should my orbits be?

I'm flying VFR circuits at a towered aerodrome, and the circuit is quite busy. With traffic ahead of me to land, the tower calls on the radio and asks me to orbit on downwind. I know it's good ...
9
votes
1answer
1k views

How do uncoordinated turns (skid, slip) affect a helicopter's turn radius?

Is a helicopter's flight path (track made good) an arc of constant radius regardless if it's a coordinated or uncoordinated turn? (Assume nil wind conditions and that the pilot maintains the angle of ...
8
votes
4answers
474 views

Why does elevator input move the turn coordinator ball in steep turns?

When practicing steep turns, I'm running into an unusual phenomenon. If the airplane is losing altitude in coordinated flight and I apply aft stick pressure to pitch up and correct, I notice that the ...
8
votes
3answers
841 views

How did this F/A-18's execute a “low-boom maneuver”?

The Engadget article NASA will publicly test quiet supersonic technology in November says: The administration plans to conduct a series of public tests around the coastal city of Galveston in ...
8
votes
2answers
1k views

Are snatch pickups used today?

John T. Downey, who spent 20 years imprisoned in China, was captured when his plane was shot down during an attempted "snatch pickup". The spy they were supposed to retrieve had been turned by the ...
8
votes
2answers
2k views

How is the steepness of turn bank properly defined?

In aviation we often refer to the bank of a turn as shallow, medium or steep. I remember reading somewhere that the definition is not universal as to how many degrees it is, but it has to do with the ...
7
votes
2answers
2k views

Why should the ball be centered during steep turns?

I was taught to make steep turns with the ball centered, but this seems wrong to me. Shouldn’t the ball actually be held slightly to the inside of the turn? My thought is that by using some cross-...
7
votes
2answers
1k views

What does it mean to move a single flight control to its full deflection?

It is the speed below which you can move a single flight control one time, to its full deflection, for one axis of airplane rotation only This is part of the explanation of maneuvering speed. What ...
7
votes
1answer
1k views

How does the canard plan of the Dassault Rafale work?

I'm quite puzzled after seeing some videos of the Dassault Rafale. When pulling the stick, the canard plan should move as in this video (low speed, high angle of attack, stick pulled backward on ...
7
votes
1answer
1k views

What are good strategies for the “impossible turn”? [duplicate]

For reference, I fly a Cessna 172. I've read about a couple of different strategies for the impossible turn (attempting to turn back to the airport after engine failure at low altitude). The first ...
6
votes
3answers
901 views

How will a prolonged series of steep turns produce a stall in subsequent level flight?

In Stick and Rudder, the author warns pilots against the unreliability of judging airspeed and hence “buoyancy” — his term for how far the airplane is from aerodynamic stall — by throttle position, ...
6
votes
2answers
621 views

Are sudden turns and descents a standard emergency procedure?

First, I'm not looking for speculation on an accident, I just want to know if pilots are trained to make certain maneuvers in response to an emergency. In reading about the jet that just went down in ...
6
votes
1answer
1k views

Why are yaw rate and pitch rate obtained by these equations?

I am reading "Introduction to Aircraft Aeroelasticity and Loads" by Jan R. Wright and Jonathan E. Cooper. The book said: In steady bank turn (as shown in picture below), The rate of turn is given by:...
6
votes
1answer
927 views

Where can I find detailed steps on how to perform all ACS maneuvers?

All the maneuvers outlined in the Airman Certification Standards (slow flight, power on stalls, short field, etc.) have been taught by my instructor to me but on no occasion have I received reference ...
6
votes
3answers
2k views

How would one define or explain the term “unloading the controls?”

I've heard people say "unload the controls" or "unload the wing/propeller." What does this mean exactly? It is usually followed by releasing back pressure on the elevators or starting/ending a turn.
6
votes
1answer
175 views

Is a forward slip considered a “normal maneuver” under 91.175(c)(1)?

After an instrument approach in IMC, 91.175(c)(1) requires, among other things, that operations below the DH or MDA must allow for a "normal rate of descent using normal maneuvers." Can ...
6
votes
1answer
2k views

What regulatory load cases drive the structural design of aircraft?

What I am looking for here is a sort of a list gathering the manoeuvres and/or load cases imposed by regulation that lead to the sizing of a part of an aircraft. For instance, vertical gust load is ...
5
votes
2answers
1k views

What is the derivation of 15 and 11.3 used for computing pivotal altitude?

Pivotal Altitude Explained: Teaching eights on pylons the easy way at AOPA repeats a common formula for pivotal altitude. To estimate pivotal altitude, square the groundspeed and then divide by 15 ...
4
votes
3answers
579 views

How do planes respond aerodynamically when bringing them into inverted flight by rolling?

For the sake of the question the plane is fully capable of inverted flight, no problems with engines etc. Background of the question is the observation that the airflow around the wing must also ...
4
votes
4answers
2k views

Why did this aircraft do a ‘spiral’ before landing?

There was this WizzAir flight two days ago, from BUD to PMI, and right before landing it did a ‘spiral’ like maneuver. I’ve attached a screenshot. Why did it do that? It looks strange.
4
votes
2answers
381 views

Is there a universal departure recovery procedure?

Let us say you're in a non-fly-by-wire tactical aircraft (say a F-15 or an A-4) doing maneuvers in the local MOA, and you manage to depart the jet in some non-spin fashion. Is there a standard ...
4
votes
4answers
992 views

Is there a relationship between control surface deflection and a particular turn radius or bank angle?

I am making a project which includes automation of aileron, rudder and elevator deflection. Is there a quantifiable relation which can tell me the amount of deflection required for any radius of ...
4
votes
3answers
656 views

Is the Falling Leaf maneuver used for UAV recovery?

The Falling Leaf maneuver is a way to lose altitude by descending like a tree leaf. Is this maneuver used in the recovery of UAVs? Source.
4
votes
1answer
264 views

How do groundspeed and IAS change during eights on pylons, and how should I manage them?

When performing eights on pylons I know that groundspeed (GS) reduces as we fly into the wind and increases as we fly with (or away from) the wind. This is the direct cause for the need to constantly ...
3
votes
3answers
589 views

How to determine the traffic avoidance manuver?

Scenario A: I started the takeoff roll and then noticed another aircraft is crossing the runway in front of me, how could I determine what is the best avoidance maneuver, like full braking to abort ...