Questions tagged [takeoff]

Takeoff is the first phase of flight, when an aircraft lifts off from the runway or other surface.

Filter by
Sorted by
Tagged with
76
votes
6answers
29k views

Why does the B-52 take off without rotating?

In the answer to this question it is noted that the B-52 takes off without rotating and climbs out in a nose-down attitude. Why was it designed this way?
69
votes
3answers
10k views

Why would seaplanes use a curved takeoff run?

I came across this interesting factoid in another SE Aviation answer (How flat does a runway need to be?): seaplanes often use a curved takeoff run. I'm trying to imagine why but cannot come up ...
51
votes
4answers
19k views

Why are the F/A-18 rudders deflected in opposing directions during takeoff?

Looking at some videos and photos of F/A-18 Hornets and Super Hornets taking off from carriers and from airfields, I recognised that the left rudder is pointing right, and the right rudder pointing ...
50
votes
9answers
9k views

Could airliners use a steam or electric powered catapult for take-off?

This would have the obvious benefits: Less runway needed to take-off Fuel savings Faster turn around times for airlines Could this be implemented in busy airports?
49
votes
6answers
18k views

Has an airplane ever been launched from a submarine?

Airplanes are routinely launched from ocean going vessels, namely carriers. Missiles are routinely launched from submarines. Has an airplane ever been launched from a submarine? From questions ...
46
votes
2answers
9k views

Why are bird strikes on approach or landing not as common as on takeoff?

I've heard about lots of bird strike incidents that occured during a takeoff roll or the early phase of takeoff climb but hardly heard of bird strikes on approach or landing. Are bird strikes much ...
42
votes
5answers
16k views

Why did my flight climb so sharply on takeoff?

I was on a Ryanair flight this morning that seemed to perform an incredibly aggressive takeoff from London Stansted on a 737-8. Takeoff was fairly fast, but the climb was the steepest I ever ...
39
votes
9answers
16k views

Why don't short runways use ramps for takeoff?

Say you had a runway for light aircraft, but only 700 meters or so of runway. Wouldn't it help to end the runway with a ramp that is ~40 meters above ground and slightly facing the sky at a gradient ...
39
votes
1answer
5k views

What is the guy in green showing to the F/A-18E pilot before catapult launch?

In the following frames, you can see a guy in green showing a panel-like device with numbers on it to the pilot of the Super-Hornet that is about to launch from the carrier USS John C. Stennis. What ...
37
votes
2answers
14k views

What do jet pilots say during the takeoff as they are speeding down the runway?

I was watching a documentary on youtube and the pilots always say something that sounds like "B1E" when they have enough speed to take off. What exactly are they saying, and why do they say it?
36
votes
2answers
10k views

Is an Airbus A319 allowed to fly with a missing flap track fairing?

During a recent flight from Copenhagen to Milan in an Airbus A319, one of the flap track fairings were missing from the wing. I saw this during takeoff, and notified a flight attendent as soon as the "...
32
votes
6answers
18k views

Can jet airplanes operate on 'rough' airfields?

A question I've always wondered is: can jet aircraft - not turboprop in this case - operate from 'rough' airstrips. My definition of 'rough' is grass or maybe a smooth mud airfield. I know that there'...
32
votes
3answers
8k views

Why can't runway 18 at Frankfurt Airport accept takeoffs or landings in the opposite direction?

Runway 18 at Frankfurt Airport is one example of a runway which is numbered on only one side. Aircraft can only takeoff in the 18 direction, and cannot takeoff in the 36 direction, nor land in any ...
31
votes
8answers
9k views

Why don't B747s start takeoffs with full throttle?

Why does the 747 start takeoff with partial power and increase to full throttle later down the runway, when the A380 for example starts on full? Source This is not the same question as: Is it ...
31
votes
6answers
7k views

What is the proper procedure after a bird strike in a single engine plane during takeoff?

First, let me set this up and then ask a general question. I'm just trying to give some context as to why I'm asking. I'm working on my private pilot license and was practicing with my PC simulator (...
30
votes
2answers
9k views

Why don't helicopters always takeoff from a hover out of ground-effect?

I've read enough crash reports to see that helicopters discovering too late in takeoff that they lack the power to fly out of ground-effect is a serious problem. I am wondering why the following isn'...
28
votes
7answers
8k views

Why tap the brakes on take-off in fixed gear aircraft?

The Socata TB10 checklist indicates that you should touch the brakes after lift-off. I assume this is to stop the wheels from turning, but why? In a retractable gear aircraft this would make sense to ...
28
votes
10answers
8k views

Has someone with no experience at all ever taken off in a plane? Could they?

I was watching Mystery Science Theater 3000 and their showing of 1970 TV movie/pilot San Fransisco International. One of the plots in the movie involves a twelve (or so) year old boy, who, alarmed ...
28
votes
2answers
7k views

What are those hatches on the engines of a B-2 that are open during takeoff?

I just watched this drool-inducing video of Northrop Grumman B-2 Spirit, And noticed that there are a couple of hatches near each engine, which were open: I initially thought they were open for some ...
28
votes
3answers
44k views

Why do I get that funny stomach drop feeling right after takeoff?

Right after take off 1-2 minutes into flight I get this stomach drop "roller coaster" feeling for split second. It freaks people out thinking they are about to crash! Why is that??
27
votes
11answers
6k views

Is it possible to take off on an elevated short field by “falling”?

I understand this may be a dumb question to ask, but - in the opening sequence of Golden Eye - James Bond chases after a plane that has rolled off the side of a cliff in his motorcycle, and then ...
27
votes
4answers
8k views

When does an airliner switch from using the tiller to the rudder?

When does an airliner switch from using the tiller to steer to the rudder on takeoff? Same for landing- when does the pilot switch from using the rudder to the tiller? What is this process? Once a ...
25
votes
3answers
5k views

Why would a turboprop rev down just before going full throttle during takeoff?

The only turbprop I've travelled is the ATR 72. I've noticed that the props' rev go down (for like a second, the sound also goes down) just before engaging full throttle in order to takeoff. I've ...
25
votes
3answers
6k views

What are the effects of a rejected takeoff?

When a pilot is abandoning a take-off, what are the effects on the aircraft performance? Can a pilot vacate the runway normally or is extra time on the runway needed? Is immediate assistance provided ...
22
votes
10answers
10k views

Do pilots ever intentionally takeoff or land downwind?

Is there a reason a pilot would takeoff downwind or land downwind? Is it legal to do this?
22
votes
9answers
7k views

Why are winches not used for towing commercial planes up?

In this video a glider is pulled up by a winch on the ground, like this: (Source) I would say you could apply the same principles with bigger planes, possibly even using sustainable energy sources. ...
22
votes
4answers
21k views

Why do the engines seem to power down and then back up after take-off?

What is the phenomenon on a commercial airliner (say, a 737-800) where shortly after takeoff and before we reach 10,000 feet the engines feel like they slow down dramatically or even power off ...
22
votes
4answers
3k views

Should landing light be off during line up and wait position?

What is the proper position for the landing lights when on the runway in a line up and wait position?
22
votes
5answers
34k views

Should full flaps be deployed on takeoff?

Are full flaps ever used on takeoff? One flying book I read strongly discouraged anything more than quarter flaps on most planes due to the amount of drag produced. I was just wondering if there are ...
22
votes
1answer
2k views

How do hot air balloons get started (without burning the fabric)?

I have seen photos of hot air balloons aloft with fearsome looking burners shooting flames into the interior of the balloon. That may be fine for a fully inflated balloon. But what about when the ...
22
votes
3answers
3k views

Could fly-by-wire protect against a takeoff tail strike?

If the takeoff weight is underestimated, rotation will be done too early and may result in a case of tail strike. One example of such mistake is a 747-400 (F-HLOV) in 2006 (case 8 in this study). The ...
22
votes
1answer
2k views

Is it legal and safe to take off or land in zero visibility?

Is it legal for planes to takeoff and land in zero visibility? Is it safe?
21
votes
4answers
17k views

How does a large cargo plane like the C-130 Hercules take off and land in such a short distance?

So I was at an air show and saw a C-130J Super Hercules showcasing its capabilities. The take-off distance it covered was amazingly short (I guess equal to fighter jets), even though it uses ...
21
votes
2answers
13k views

Could the Boeing 787-9 near vertical takeoff demonstration be performed by Airbus A350 aircraft?

I am an aviation enthusiast. A couple of months back I came to know about the difference between piloting Boeing and Airbus planes here. What are the main differences piloting Boeing vs. Airbus ...
21
votes
4answers
7k views

What is this smoke coming from an F/A-18 shortly before takeoff?

Watching a video of F/A-18 fighter-jets taking off, I noticed some sort of gas blowing out behind the canopy shortly before the start of the takeoff roll. Here's a screenshot: In some videos the ...
20
votes
1answer
2k views

What makes snow on the wings during take off so dangerous?

What is the cause of the widely known danger of snow on the wings of the airliner? Why does it require deicing before taking off? I cannot believe it just makes the plane too heavy, and it is not ...
20
votes
3answers
2k views

What is the procedure for a rejected Jet/Rocket Assisted Takeoff (J/RATO)?

Seeing the image of a Lockhead LC-130 doing a jet assisted takeoff in snow mentioned in this answer, I wonder: What is the procedure for a rejected takeoff when using JATO? Can the JATO rockets be ...
20
votes
1answer
4k views

Why do flaperons 'move down then up' on takeoff roll on a 787?

The flaperons on the 787 go through certain motions once the TO/GA is pressed. I've always seen it when the 787 is viewed from behind on takeoff. The motions are completely symmetrical, i.e., not ...
19
votes
2answers
2k views

Do seaplanes need to get clearance for takeoff?

Do seaplanes need to get clearance for takeoff? Do they have ATC? How do seaplanes get clearance to takeoff?
19
votes
3answers
18k views

What is a take off roll?

Reading about 737-900ER take off roll (3000 meters) from another question, I would like to know what this means. Is it intended that the aircraft needs 3000 meters before it can pitch up to take off ...
18
votes
8answers
21k views

If flaps are used on takeoff, when should they be retracted?

If a pilot uses a notch of flaps on takeoff, when do they get retracted? At that time, what changes (i.e. climb rate, speed, pitch)? NOTE: I have purposefully not specified the type of airplane.
18
votes
2answers
4k views

Would a takeoff be aborted if 'rotate' is not called out?

As captain of a Boeing 747 on a take-off roll I am expecting my co-pilot to call out V1, Rotate, but he does not call out rotate. Do I abort the take-off?
18
votes
7answers
2k views

Is lowering V1/VR (and runway length required) the only reason for flaps at take off?

I've read that some aircraft (examples include the Saab 340 and the Fokker 100) can perform flapless take offs, provided there is enough runway available. It's also my understanding that, in terms of ...
18
votes
3answers
8k views

How does the F-35B not flip over during transition?

As the engine nozzle rotates, the lift-fan cannot. Wouldn't this imbalance of moments around the center of gravity result in the F-35 pitching up onto its back? As can be seen at 5:14 in this video: ...
18
votes
8answers
3k views

Is it bad form to call “ready to depart” when you know you won't be cleared yet?

My local aerodrome is towered and has parallel hard and grass runways. Simultaneous parallel departures or landings are not normally allowed. On one occasion we had been instructed to "line up and ...
18
votes
1answer
69k views

How are take-off segments defined?

From take-off performance calculations I remember that the take-off and initial climb was expressed in a number of segments. Each segment had its own performance requirements. I presume they are ...
18
votes
2answers
2k views

Why is the takeoff decision point based only on speed and not time or distance?

The go/no go decision on takeoff for airliners is calculated as a V1 speed. The question is, why is there no time or distance for V1 calculated. In other words, if we don't reach V1 in X seconds or by ...
18
votes
1answer
2k views

Why is the DC-9-80 (“MD-80”) prohibited from taking off with a flap setting between 13 and 15 degrees?

A bit of digging into the 7Z9363 accident investigation has brought up some interesting information regarding the DC-9-80 ("MD-80")'s flap system: Flaps may be positioned in any of the six ...
17
votes
4answers
8k views

How high does the ground effect last?

Up to which height is the ground effect still significant enough to be taken into account? Would this height be sufficient to actually fly above the ground, overcoming at least trivial obstacles like ...
17
votes
3answers
11k views

In a 747 is it normal for the Vr (takeoff speed) to vary greatly depending on fuel load and ambient temperature?

I was reading one of the documents linked on this question, particularly I was reading case study number 8 of this particular document. In the conclusion the author notes that the aircraft flight ...

1
2 3 4 5
9