Takeoff is the first phase of flight, when an aircraft lifts off from the runway or other surface
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6answers
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Is it okay to take off with weight more than the POH max gross weight?
I wonder if I could take off with weight more than the gross weight stated in the POH of my aircraft as long as I take off with a higher speed?
I think I have done it once by mistake.
27
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3answers
4k 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 ...
0
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2answers
45 views
What does LNAV engagement exactly mean?
I notice the term LNAV engagement being frequently mentioned in aviation related discussions or in several FAA's relevant material. Take, for example, this quote from Order 8260.58A (PBN Instrument ...
3
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1answer
47 views
Under what circumstances can the Initial Climb Area extend more than 2 nautical miles?
While studying of FAA's Instrument Procedures Handbook, I noticed that on page 1-16 (Chapter 1: Departure Procedures) it defines the Initial Climb Area (ICA) as follows:
The ICA is the segment of ...
3
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2answers
254 views
gear down during takeoff for extended period of time
Normally when an aircraft departs, the landing gear is retracted shortly after the aircraft is airborne. While watching aircraft departing from an airport in my city, I noticed, that occasionally the ...
14
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2answers
3k views
Is it the tower's purview to recall an aircraft from the runway for loading the wrong cargo?
On August 17, Ryanair flight FR 11 entered the runway after already being delayed for 1.5 hours, only to exit at the first available opportunity. After being jokingly welcomed to Stansted from where ...
5
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2answers
249 views
Safety regulations for take off spectators around airports?
In a Greek island, an A320 blasted a child ten meters away, during take off. It was with his family outside the airport (Greek src).
I wonder what are the regulations, if any, for how much people are ...
10
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4answers
1k views
In light aircraft, non-instrument flight, apply (nearly) full aft elevator before beginning the takeoff roll or at some predetermined speed?
Consider a small, light, nose wheel tricycle aircraft, something along the lines of a C152 or similar, sitting at the end of the runway ready for takeoff, with no issues and with all pre-takeoff ...
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3answers
168 views
Definition of “Rotation Speed” vs “Lift Off Speed” vs “Fly Off Speed”
Is rotation speed and lift-off speed ever used interchangeably? (AMENDED Question) Is lift off speed and fly off speed the same? (See supplemental info below)
I thought I clearly understood the ...
2
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0answers
71 views
Does the “Climbing right turn” instruction of this SID violate the “Climb to 400 feet above DER before turning” requirement?
I was examining the LaGuardia Five SID, and I noticed that for runway 13 (Coney Climb) it gives the instruction, immediately after takeoff, "Climbing right turn heading 180 degrees to intercept CRI R-...
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0answers
37 views
Is there an equivalent of the Threshold Crossing Height for departure procedures?
The definition for the Threshold Crossing Height is, according to the sources that I have checked, "the theoretical height above the runway threshold at which the aircraft's glideslope antenna would ...
6
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1answer
123 views
What does the indication “ATC” in some Take-Off Minimums mean?
While studying FAA's Standard Instrument Departure Procedures, I came across the La Guardia Five Departure SID. Take, for example, the Take-Off Minimums for runway 13L:
Rwy 13 (Coney Climb): 400-2 ...
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0answers
114 views
Boeing 757-200 Fuel Burn
So up front, I'm aware of the high number of aircraft and environmental factors and how oversimplified my request is. After all, there is a reason that the aircraft manufacturers provide charts to ...
2
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2answers
219 views
What are my take off minimums?
Requesting for some clarification.
Part 91 operator. 0-0 visibility and ceiling minimums
Departing Rwy 15 at ADS
Can I depart with a standard 200 ft/nm cross DER 35 ft. since I don't need to ...
12
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1answer
3k views
Has a micro-burst or wind shear caused fatalities on takeoff?
Delta Flight 191 at Dallas-Fort Worth (1985), TANS Perú Flight 204 in Peru (2005), FedEx Express Flight 80 in Japan (2009), and Eastern Air Lines Flight 66 at New York's JFK, are all examples of ...
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2answers
159 views
Runway Number Landing and Departure Left Traffic Question [duplicate]
If I am "departing runway 36", what does that mean? I understand that runway 36 is at the north end of the runway (360 magnetic); So my question is does the aircraft start at the north end 36 and take ...
47
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6answers
15k 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 ...
12
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4answers
695 views
Has an airplane ever been launched from a train?
Presumably helicopters have landed and lifted off railroad flat cars.
Has an airplane ever been launched from a train?
(my artwork)
F-84 during project ZELL testing (info provided by jwenting)
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votes
3answers
269 views
Why is extreme cold weather a challenge at airports, since jets operate at extreme cold conditions in flight?
Wondering what specifically the issues are. Obviously, taking off and landing have more 'moving parts' but more curious about the actual extreme cold.
I assume the operating temperatures at cruise ...
0
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0answers
86 views
Why to keep window shutter open during takeoff? [duplicate]
I understand when they ask to close the window due to bright sunlight reflection on eyes during the flight but I haved noticed we are asked to open the window shutters and leave it open during the ...
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4answers
273 views
In which direction will an aircraft drift after taking off in a crosswind?
Assuming the pilot applies the appropriate crosswind flight controls (see below) during takeoff and rotation, and releases those flight controls after the aircraft leaves the ground, in what direction ...
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3answers
459 views
Could an aircraft be tied down, then throttle up and release for takeoff in order to use a shorter runway?
Could airplanes, in theory, be designed to takeoff by first tying the tail to a post, throttling the motors to full power, and then letting loose?
Could it even take off while tied, if the cable is ...
5
votes
2answers
170 views
How should you coordinate with traffic at non-towered airports?
I am a fairly new pilot. I recently flew to a non-towered airport in Quebec, Canada (Lachute, CSE4). There is a significant displaced threshold on each end of the runway. The airport has one taxiway ...
6
votes
1answer
310 views
How are procedures for curved-runway operations different for those for straight runways?
Runways having a significant curve between the two ends aren't exactly common, but they do exist, one good example being Elk City Airport's runway 14/35.
When operating to or from an airport with a ...
27
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2answers
4k 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 ...
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1answer
217 views
Is flying in ground effect dangerous?
The stall angle of a wing in ground effect reduces in comparison to the stall angle of a wing flying outside of ground effect. Doesn't this make soft field takeoff dangerous?
3
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1answer
129 views
What qualifies as a “takeoff” and “landing” in currency requirements?
I just met my night-time currency requirements at KONT.
Landing and taking off from a 12000 foot runway in a Cessna 152 got me to thinking (always dangerous, I know).
There's more than enough room ...
4
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3answers
621 views
How much rudder input does a Cessna 172 require during the take off roll?
I am part of an open-source project developing a simulation of a Cessna 172P. We are tweaking our flight dynamic model at the moment and we are looking for feedback from people with real life ...
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vote
2answers
139 views
Does angle of rotation during takeoff affect the g-force?
(Original)
When an airplane banks 60° during row, 2 g of force is induced. When an airplane pitches 60° during takeoff, is 2 g induced on the airplane?
Is the angle of rotation during takeoff ...
3
votes
1answer
169 views
How to interpret the term “standard” which is found in FAA's Obstacle Departure Procedures (ODP) and Standard Instrument Departure Procedures (SID)?
This might be obvious, but I find it difficult to interpret correctly the term "standard", when it refers to the takeoff phase of the flight.
Take, for example, the takeoff minimums for the La ...
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0answers
65 views
Different takeoff minimums between an Obstacle Departure Procedure (ODP) and a Standard Instrument Departure Procedure (SID)
It seems reasonable to me that an Obstacle Departure Procedure would include more "strict" rules (steeper climb gradient) than a SID, which is more "situational" and provides a specific direction in ...
3
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0answers
160 views
Where does the Departure End of Runway (DER) exactly begin?
I am having trouble understanding the concept of Departure End of Runway. Most sources state that DER is at the end of the portion of the runway that can be used for takeoff (which, as far as I can ...
12
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2answers
4k views
Do pilots reject takeoff if aircraft doors are not properly locked down?
This particular incident, the pilot rejected takeoff "due to a aft door indication".
My questions are:
Is it a such serious situation so as to reject take-off?
If the pilots had taken off, could the ...
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3answers
237 views
What is the average angle of attack of GA airplanes during takeoff?
What is the average angle of attack of GA airplanes during takeoff?
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5answers
2k views
What is the correct ATC phraseology in the US for an immediate - no delay takeoff?
Just wondering - what's the correct ATC phraseology for a takeoff where a plane does not stop first after lining up with the runway centerline before starting their takeoff roll?
Redwood five-two-six-...
0
votes
1answer
135 views
What is the lift-to-weight ratio during takeoff for an ultralight?
Lift to weight ratio at cruise is 1:1, what is the average lift to weight ratio during takeoff (rotation) of an ultralight with 2m/s as rate of climb?
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4answers
603 views
Why would an aircraft do multiple runway laps before takeoff?
During a recent Ryanair, Boeing 737 flight, the aircraft went up and down the runway several times before takeoff, whilst modifying the flaps.
Why would this have been? Usually, I thought flaps and ...
3
votes
2answers
68 views
Can an aircraft get certified for different runway lengths through the FAA based on the amount of payload it is carrying during said takeoff?
When certifying a new aircraft through the FAA, will they certify the AC for just one takeoff distance based on the max payload capacity, or can you get the AC certified for multiple runway lengths ...
25
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3answers
4k 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 ...
5
votes
1answer
166 views
About how many aborted takeoffs are there each year in commercial aviation?
Watching this sim of a 777 engine failure on takeoffs got me wondering about RTOs, and how often they occur.
The interest was further driven after reading a comment by N1755L that might underline ...
2
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2answers
205 views
Engines more powerful than the brakes?
This might be more of an anecdotal question, but are there any aircraft where under full throttle (with afterburner in worst-case) where the wheels wouldn't provide enough friction against the runway ...
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3answers
219 views
Could an ultralight hypothetically takeoff without power on if it were windy enough?
I don't know if takeoff would be the right term, but the wing should generate lift with any headwind.
2
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3answers
1k views
Why B-52 engines produce lots of smoke only during take-off? [duplicate]
During the flight it seems there is no smoke, it's only during takeoff. Here is an example
This question explains that smoke is caused by unburnt fuel but why is ...
0
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1answer
205 views
Have there ever been any JATO bottles using only kerosene?
I've been reading about the early rocket work during WW2. They tried all sorts of fuels, hydrogen peroxide, hydrazine, red fuming nitric acid...
Just in the scope of JATO/RATO, has there ever been ...
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2answers
412 views
How can I find out the reason for an aborted takeoff?
I was listening to ATC at LAX today and heard them cancel AA 253's takeoff clearance and instruct them to abort their takeoff; it sounds like they were already rolling down the runway when it happened....
3
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2answers
302 views
Why does one announce “Thrust Set”?
I have watched many aircraft takeoffs now where the flight deck announce 'Thrust Set', just after the engines are set to full.
Forgive the dumb question, but why does one announce that the thrust is ...
5
votes
1answer
321 views
Aircraft Carrier Launches: ABE Checks and Signals
Somehow I got hooked on videos of aircraft carrier flight deck operations, and have been binge-watching over the last couple of days. (Glad it's a long weekend...)
I've been able to understand many ...
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0answers
181 views
What is the optimum speed for takeoff flaps?
I took a 737 rating written test yesterday and one of the questions was:
What's the optimum speed for takeoff flaps?
V2
V2 + 10
V2 + 15
V2 + 20
Anybody knows the answer? I did some research and ...
13
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3answers
541 views
Why did the flight Osaka -> Frankfurt circle above the airport after taking off from Osaka International?
When departing form Osaka International (KIX) the Osaka city passed below twice, the second time much lower. Looks like our 747-400 was circling up in spiral before heading a long way over Russia to ...
8
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2answers
1k views
What flaps position should be used for taking off from a wet runway?
If I have to take off in a C152 or C172 from a runway that's 800-900 meters (2600-3000ft) long and wet but not contaminated, what flap setting should I use to get the shortest ground roll?
