Questions tagged [takeoff]
Takeoff is the first phase of flight, when an aircraft lifts off from the runway or other surface.
395
questions
0
votes
0answers
78 views
Is that second B-52 suffered Wake turbulence? [closed]
Here is the moment on the video when to large B-52 departs together . Second aircraft is taking off right behind the first one and produced erratic move. Is that second B-52 hit the pockets of ...
0
votes
0answers
25 views
headwind, tailwind, weight, density exponents for DR400/180
I am trying to build a ground roll chart for Robin DR400/180 following the procedure described
http://www.eaa1000.av.org/technicl/takeoff/topaper.htm#References. Does anyone know the tailwind, ...
0
votes
0answers
34 views
Vortices from the landing gear [duplicate]
Some time ago I was flying with my instructor on a C152. After take-off he said to me to push the brake pedals to stop the wheels rotating in order to reduce the wake from it. I have never heard about ...
1
vote
0answers
84 views
What does a ski jump takeoff feel like?
Some aircraft takeoff from aircraft carriers using a ski jump. What does it feel like to takeoff this way? Does it feel like an alpine ski jump? How does the feeling compare to catapult takeoff?
0
votes
2answers
52 views
Is Assumed Temperature used in conjunction with a Derate in the B737 NG?
When using an Assumed Temperature for Takeoff, is it common operational practice to also use a Derate?
2
votes
1answer
45 views
In a B737 NG, when a TO is flown with an Assumed Temperature N1, is the subsequent CLB N1 also adjusted (lowered) accordingly?
The Title is my question. Because I think that if one uses a very high Assumed Temperature, the subsequent Max CLB N1 maybe higher that the TO N1.
6
votes
1answer
1k views
What should the pilots do when fire is detected during the takeoff roll at high speed?
Let us say fire or smoke is detected during a takeoff roll when the speed is so high that the pilots can not make a full stop using the remaining runway. What is the best option: using full brake to ...
14
votes
2answers
2k views
Did I witness an engine test for a 757 at MAN?
A while ago (Summer 2020) I was walking near MAN airport (UK) and saw a 757 taking off. There was a peculiar event during takeoff and I'd love to know what it was.
Once airborne at about 1000 feet (...
3
votes
1answer
535 views
Is a magnetic assisted takeoff feasible? [duplicate]
I have seen that there are many companies working toward hybrid electric aircraft. It is very exciting some of the ideas.
The primary reason seems to be for limiting CO2 emissions acceleration, ...
0
votes
1answer
75 views
Should “Thrust Reduction” and “Acceleration” heights be the same for the Boeing 737 NG?
Should the Thrust Reduction height be the same, lower or higher than the Acceleration Height?
In other words, what is their "correct" sequence.
I am referring specifically to the B737NG, if ...
7
votes
2answers
509 views
How does an inoperative Anti-Skid affect V speeds?
I am trying to figure out why is it that when you have an inoperative anti-skid system, the calculated V Speeds are lower?
I'm trying to see this from a performance perspective, could this be due to ...
-2
votes
2answers
264 views
9
votes
1answer
253 views
When was the concept of V1 introduced?
When was V1 speed first introduced? Was it the result of a particular accident or series of accidents?
1
vote
1answer
98 views
How can I calculate the minimum thrust to weight ratio required for a given takeoff distance?
I am building a plane and I have a take-off distance of 50ft, is there a way for me to estimate the thrust-to-weight ratio required for this constraint (even if it was in terms of say wing loading)?
3
votes
2answers
78 views
What do we mean by taking the lowest of ZFW; TOW and LW to determine the maximum takeoff weight of the day?
Firstly, I understand that the maximum permissible takeoff weight can be limited by landing weight because landing weight plus trip fuel gives us one take off weight. We obviously do not want to be ...
0
votes
2answers
190 views
What could I do to a give a plane an emergency boost of power for takeoff?
For some reason the pilot has to take off in an emergency or is on a runway too short or maybe they just want more places they can land and takeoff. The single engine plane is already light on fuel ...
5
votes
1answer
215 views
Is it possible to increase available take-off distance for a seaplane by turning?
In the video below an A5 had an accident after takeoff. The final cause of the accident seems to be a sharp increase of AOA above stall.
Do sea planes have an ...
1
vote
2answers
147 views
How much thrust is produced on an A320 at takeoff and during cruise?
Where can you get the drag polar of the A320 at cruise and TakeOff?
1
vote
2answers
614 views
Is “takeoff distance” measured over the ground, or to a point in the air?
I read that takeoff distance was the distance for which the airplane is on the runway, as well as the distance for which it ascends to 15 meters off of the ground.
Does it get measured as the ...
-1
votes
1answer
141 views
How does the location of the undercarriage affect 'Nosing Over'?
"The location of the undercarriage and the height from the ground of the aircraft’s centre of gravity have a very important
role in the design of aircraft. In the case of a “tricycle ...
3
votes
1answer
194 views
Are aircraft pilots required to fly runway heading for a certain distance?
If an aircraft rotates off the runway relatively quickly (runway mid-point for example), do pilot's need to continue on the runway heading for a minimum distance before turning based on departure ...
0
votes
1answer
83 views
How to use a set of Pressure Transducer to mimic pitot static tube for VTOL vertical airspeed indicator?
May i know if i have 3 pressure transducer, 1 facing upwards and the other downwards to measure the vertical velocity of a VTOL (Vertical Takeoff and Landing aircraft) and another 1 on the nose of the ...
0
votes
1answer
69 views
Will a quad fan arrangement on an aircraft help with pitching moments during VTOL flight transition?
The phenomena of ducted fan assemblies inducing pitching moments whilst in transition from vertical to horizontal flight paths is a problem I have seen mentioned by many designers and engineers of ...
7
votes
2answers
2k views
Could an airliner abort a landing after using the brakes system while landing?
Everyone knows that doing a go-around is a normal procedure, although the go-around happens usually before applying the brakes system (spoilers, ground/air brakes, and/or thrust reversers), but, could ...
5
votes
3answers
561 views
Do all single-engined aircraft experience torque that cause a turning tendency during the takeoff roll?
I've been flying the Cirrus Vision SF-50 for quite some time on my X-plane 11.
Having a single turbofan engine mounted near the V-tail, I expected the requirement of at least a little right rudder. ...
0
votes
1answer
113 views
What is takeoff power? [duplicate]
I Am asking about the takeoff power here not how the aircraft takes off.
What do I need if I want to calculate the power required by an aircraft to take off?
What parameters should I consider?
2
votes
0answers
84 views
Why can't you operate packs on HIGH during take-off, approach and landing on a 737-800?
It's in the FCOM Limitations Chapter and I think that these phases are critical phases of flight and I don't want to reduce my engine performance by purposely creating a high demand for bleed air from ...
1
vote
1answer
264 views
What runway has the steepest climb requirement on take-off?
What runway has the steepest climb-out requirement upon take off?
This would probably be due to the need to avoid some natural obstacle, such as a mountain.
0
votes
2answers
125 views
Could a plane take-off at 20,000 feet above sea level if the temperature is above freezing?
I’ve read that “humans have survived for two years at 5,950 m (19,520 ft, 475 millibars of atmospheric pressure), which is the highest recorded permanently tolerable altitude” and that “Daulat Beg ...
-2
votes
3answers
185 views
Can any modern commercial airliner currently in service take off vertically? [duplicate]
I saw a video of a Boeing 787 taking off 'vertically' at the Paris Air Show.
How is that even possible? It was to my prior knowledge that only fighter jets had the capability and maneuverability to ...
2
votes
2answers
158 views
Is “balanced field” defined with or without an engine failure?
I’m wondering what exactly means a balanced field in terms of aircraft performance. From what I know it means that TODR=ASDR, also it is minimum field length required. But I do not know whether this ...
11
votes
3answers
3k views
What is the name of the movement which is carried out by plane beginning from the runway and ending at takeoff?
What is the name of the movement which begins after the plane lines up on the runway and takeoff clearance is received, and ends when the plane lifts off from the runway? Is it also called as 'taxiing'...
1
vote
2answers
1k views
How do I use the takeoff and landing distance charts in the C172 POH?
Can anyone explain how to calculate takeoff and landing distances using the chart for C172s, and please give me an example?
0
votes
1answer
190 views
Does an airplane has to take off from beginning of the runway or it can take off from displaced threshold?
I mean, if the airports declared that there is a displaced threshold of runway ; and airplanes use this length for landing but how about for takeoff?
2
votes
2answers
162 views
Are intersection takeoffs less common in the USA than in other countries?
On a recent trip through Australia I did a number of intra-oz flights. In at least three of the cases we performed intersection takeoffs, a couple at MEL/YMML and one at BNE/YBBN. I have at least a ...
4
votes
1answer
416 views
Why does the 737NG EGT drop during take-off?
I noticed that the EGT drops a bit when I hit TO/GA for take-off on a 737-800.
8
votes
4answers
3k views
RATO used to get civilian aircraft out of airports with inadequate runway length?
There are plenty of stories of large aircraft accidentally, or emergently, landing at airports that don't meet the plane's runway length requirements. The only solution to getting them out that I've ...
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 ...
3
votes
2answers
312 views
How does the Mi-26 tilt its rotor like this?
I watched this video on YouTube, which shows an Mi-26 taking off with its rotor tilted forward about 45 degrees. Is the video fake or is it real, and if it is real, how does the Mi-26 do such a thing?
3
votes
1answer
498 views
How does the Airbus auto takeoff system work?
Can you explain in a easy way, how the auto take off system of Airbus works? What is needed on a modern aircraft to perform the take off without help by a pilot?
4
votes
1answer
245 views
How do airports in hot climates handle extremely high temperatures?
In June 2017 dozens of flights were cancelled in Phoenix, Arizona because of temperatures exceeding 120 degrees Fahrenheit/48.9 degrees Celsius.1,2
Hot air at a given air pressure is less dense, ...
2
votes
1answer
126 views
Derivation of the Takeoff equation
I am trying to understand the derivation of some simple equations to calculate the neccecary takeoff speed for an airplane (under ideal conditions).
Which is taken from 15. Takeoff and Landing. My ...
5
votes
1answer
318 views
How much actual difference does fixed pitch propeller make in takeoff distance?
So it's possible to buy fixed pitch propellers which are either optimised for takeoff or for top speed. I guess most airplanes have a compromise.
Considering a training aircraft like a Cessna 152, ...
11
votes
3answers
2k views
Has the “Foote takeoff” technique really existed, and how did it work?
Reading The Crash Detectives: Investigating the World's Most Mysterious Air Disasters by Christine Negron, I came across the following description, in relation to some early de Havilland Comet ...
0
votes
1answer
105 views
Launch control equivalent while take-off
What is the proper term used when the plane is stopped and the engine is ramped up and after a certain thrust is reached, it suddenly starts off with a jerk.
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 ...
9
votes
2answers
3k views
What are the disadvantages for using short-field take-off technique?
It is obvious that using the short runway takeoff method(hold the brake till engine get full power) could get the aircraft in air within a shorter runway distance.Then why it is not used for every ...
15
votes
4answers
5k views
Why does the Eurofighter Typhoon pitch up on brake release?
In the video here of an airshow take-off, it's noticeable that when the brakes are released there's a brief but pronounced fluctuation in pitch as the aircraft accelerates.
This is something you see ...
7
votes
4answers
983 views
How to use Rudder during takeoff in single engine propeller aircraft? e.g. Cessna 172
Background: I am a complete beginner on Flight Simulator X: Steam edition, using a simulator setup with rudder pedals with realism set to the max (to simulate more realistic flying).
I understand ...
6
votes
1answer
392 views
What Is a “Fully Stalled” takeoff?
Reading this article (on the Boeing 737 MAX saga; irrelevant), I found the following excerpt:
Boeing ultimately accepted Davies recommendation and, we understand,
halted production of the 707 for ...
