TORA TODA ASDA LDA Explanation - [Stopway, Clearway and Displaced threshold]

The TORA, TODA, ASDA, and LDA are takeoff and landing declared distances.
In order to understand in full these distances, we have to know what a Stopway a Clearway, and a Displaced Threshold are.
Every Airport has 2 different runway directions for takeoff and Landing.
The TORA, TODA, ASDA, and LDA can be different from one direction to the other on the same runway.
The stopway, the clearway, or the displaced threshold may be present on one side only, on both sides, or on neither side of the runway.
So, for example, if you have the stopway on one side of the runway only you have two different ASDAs depending on the takeoff direction.
The TORA (Takeoff Run Available) is the available runway length useable for the ground run of the aircraft during takeoff. It is the distance from the threshold (or displaced Threshold if available) to the other end of the runway or the end of the stopway if available.
The TODA (Takeoff Distance Available) is the length of the TORA plus the Clearway if available, this distance is used to start the takeoff run and transit into the initial climb phase.
The ASDA (Accelerate Stop Distance Available) is the length of the TORA plus the stopway of available. The ASDA is calculated in case of a rejected takeoff.
The LDA (Landing Distance Available) is the length of the runway useable for landing and it goes from the threshold to the end of the runway or the end of the displaced threshold if available.
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👇To watch the video regarding the V1 decision Speed click the link below👇
• V1 Takeoff Speed - [de...
👇To watch the video about the ILS categories click the link below👇
• ILS Categories - [Lear...
👇To watch the video about the Displaced Threshold click the link below👇
• Displaced Threshold Ex...
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Disclaimer:
THIS VIDEO IS FOR ENTERTAINMENT PURPOSES ONLY.
NOT FOR REAL-LIFE OPERATIONS.
PLEASE REFER TO THE OFFICIAL MANUAL AND DOCUMENTATION.
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[@syedata7092]

whenever i want to refresh my lesson i see your video.... great job

[@PILOTCLIMB]

Thank you very much!

[@miguelmarrufoel]

Hello Captain! I'm a student pilot and I'm flying to a different airport tomorrow. XC flight with my instructor. This video was excellent. Subscribed!

[@PILOTCLIMB]

Hey, many thanks for watching and for the nice comment, don't hesitate to ask questions when watching the rest of the videos. How was your XC flight? Have a great day!

[@miguelmarrufoel]

@@PILOTCLIMB Sadly I got grounded due to the weather! This week's the charm, I hope. Thanks a lot for the response, interacting with the audience is key! Keep it up Captain

[@PILOTCLIMB]

@@miguelmarrufoel You are welcome!! You will do your XC next time 👍!! Let me know if you have any questions!! Have a great day

[@peteallennh]

Brilliantly explained! Thank you for this! Short, sweet and to the point 🙂

[@PILOTCLIMB]

Thanks for the support!! You are very welcome!

[@gabrielkastoun2048]

Great video i had a problem with those but now i understand them keep it up

[@PILOTCLIMB]

Awesome!! I'm glad the video helped you!! Have a great day!!

[@umutgulmez83]

Best explenation I have encountered. Tenx

[@PILOTCLIMB]

I'm glad you like it! You are very welcome

[@michaelfarano3476]

At university we have taught that... 1/2 of TORA < CWY then you adopt it... BUT IF 1/2 of TORA > CWY... Then you use the existing CWY...

[@Capt-th6ym]

well done video; the different colored markings help to keep it simple.

[@PILOTCLIMB]

I'm glad you liked the video!! Thanks for watching!

[@Iamaware111]

Best video ever

[@PILOTCLIMB]

Thanks for watching and the support!

[@PILOTCLIMB]

Thanks for watching and the support

[@nabielharlyansyah7202]

it makes me refresh my knowledge for interview tomorrow, thanks Capt!

[@PILOTCLIMB]

I wish you the best for tomorrow!

[@pilotsabin7702]

Great Video, Capt. Keep up the good work. I'm am an Airline Pilot from Nepal (First Officer).

[@PILOTCLIMB]

Hey, I hope you are doing great!! I'm very glad to see you liked the video!! What type of aircraft do you fly? If I can ask... I wish you a great day! Gabriele Pilotclimb

[@pilotsabin7702]

@@PILOTCLIMB I'm currently Flying Dornier -228( We fly to mountains region of Nepal ) also known as Short Take off, and landing sectors.

[@PILOTCLIMB]

@@pilotsabin7702 Very nice plane!! You must have been having great time time flying there!! Welcome on board to the pilotclimb community!! I wish you a great day Gabriele Pilotclimb

[@raccoonair]

This explanation is very clear; very well done sir!

[@PILOTCLIMB]

Many thanks for watching and for the kind comment!! Don't hesitate to ask any quesitons you might have! Have a great day!

[@Larkano]

Superb Captain - cannot be explained any better than this.

[@PILOTCLIMB]

You are very welcome!!

[@sivakumaran1981]

Fantastic job! Captain!!! Started to follow your channel

[@PILOTCLIMB]

That's great!! I'm glad you like it!

[@muhammadsultanularafin8846]

Crystal clear! Thank you.

[@PILOTCLIMB]

You are very welcome!

[@ivaivanov6535]

Finally I understood all this boring stuff😁, thanks Captain!

[@PILOTCLIMB]

That's great!! Thanks for watching!!

[@syedata7092]

Nicely educating explanation. thanks

[@PILOTCLIMB]

You are very welcome! Thanks for watching!

[@fewscattered]

Keep your helping up captain. you're the best

[@PILOTCLIMB]

Many thanks!

[@dogukangumus8190]

Thank you it was great.

[@PILOTCLIMB]

Hey, I'm very glad the Video helped you!! Don't hesitate to ask any question in the future.. I wish you a great day!

[@ahmedsmart1120]

Some ideas for videos -why dewpoint is important? Why in the metar Dewpoint is always to be considered? What does dewpoint tell and what different changes happen when dewpoint increases or decreases? -RAAS Runway Awareness and Advisory system How do you read weather charts and how do you know how to plan fuel? Without software help.

[@PILOTCLIMB]

Hey!! I hope you are doing great!! Many thanks for your great ideas, I will make some videos explaining the above points soon... So, consider subscribe, if you haven't already, so you don't miss the videos!!! Are you a Private Pilot, a Simulator Pilot or a Commercial Pilot?? I wish you a great day!

[@tonydavis1305]

Dew point is always given adjacent to temperature..(temp/dp).(30/26). The closer the dew point is to the temperature the saturation point is closer...leading to chances of precipitation .

[@Aviatorpassion]

Thank you captain your explanation very useful and great

[@PILOTCLIMB]

You are very welcome!!

[@bahamdan1977]

Good job

[@PILOTCLIMB]

Many thanks for watching and the comment!! Don't hesitate to ask me any questions when watching the rest of PILOTCLIMB channel videos

[@roberthatcher2773]

Great explanation as always, thank you so much for all your excellent informative videos!

[@PILOTCLIMB]

You are welcome! Thanks for the support

[@husseinelmletti8068]

Thanks a lot , great video

[@PILOTCLIMB]

Thank you for the kind comment really appreciated it, I'm glad you liked the video! Welcome onboard the PILOTCLIMB community!

[@luizhrmachado]

Very nice vídeo man

[@PILOTCLIMB]

Glad you like it!! Thanks for watching!

[@Alex-cu5eu]

Great video captain! Hopefully will help me pass my operational procedures PPL exam :)

[@PILOTCLIMB]

For sure!! I wish you the best for your exam!!

[@Alex-cu5eu]

@@PILOTCLIMB Passed the exam with 91% :) There was a question on clearways!

[@PILOTCLIMB]

@@Alex-cu5eu Congratulations Alex!! Well done!

[@Alex-cu5eu]

@@PILOTCLIMB Couldn't have done it without this video XD

[@SkySurfer-8Q]

Hi Captain... nice explanation, anyway i have a question here... I was thinking when would TODA, TORA, ASDA, and LDA be equal? ...thanks

[@PILOTCLIMB]

When you don't have displaced threshold, stopway and clearway. You are very welcome

[@salamonsalman]

thx capt

[@PILOTCLIMB]

You are very welcome!

[@luissol3964]

Thanks for all videos¡¡, one question, for the TODA, if a runway does have stopway, it should be considered like a distance for the take off, no? or it can have not the same area clear of obstacles for the initial climb than a clearway

[@PILOTCLIMB]

You are very welcome!! Stopway will improve your ASDA. Have a great day!

[@gabrielkastoun2048]

Hey just can you correct me if im wrong in the following sentences and thank you : TODA begins from the beginning of the takeoff roll until screen height And TORA is from the beginning of the takeoff roll until Vr?

[@PILOTCLIMB]

Hey, thanks for watching, the TODA is the distance that you have AVAILABLE for your acceleration from brake released to the screen height (TODR), so we can say that the TODA is the distance available for your TODR. The TORA is the distance available for your take off Run (Brake released to rotation). Let me know if you still have any question.

[@PILOTCLIMB]

Let me know in the comments below if you any question regarding runway declared distances! happy Landings...

[@jerinthomas6788]

great video sir, could you please confirm TORA distance includes displaced threshold also for rwy 09??

[@alexanderlayouni7301]

Thank you so much captain for the videos, very instructive and clear! would appreciate a video with an explanation of holding procedures and tricks, I am having an assessment, it will be very helpful an explanation on Boeing737 instrument. Thanks again!

[@PILOTCLIMB]

That's great!! You are very welcome!!I wish you the best for your assessment. If you need an help with your assessment check www.pilotclimb.com

[@conned]

Graphics awesome....how does he do it?.

[@koosweijers5928]

Great video’s! 👌 One question: why is the SWY in yr drawing not also part of the displaced threshold? Is there a reason why there are no arrows on SWY?

[@PILOTCLIMB]

Thanks! Swy is not always present on every runway

[@tonydavis1305]

Displaced runway surface load factor is exactly same as that of the remaining runway. Whereas the load factor of the SWY is not necessarily that of the runway.. Load factor is the load bearing strength of a surface.

[@heterodyne666]

Thanks! My local airport has a turnaround circle just before the 26 threshold which is included within the 26 TORA/ASDA but is NOT included within the 08 TORA/ASDA/LDA. Strange that it only counts in one direction.

[@PILOTCLIMB]

Hey, great question!! can you give me the ICAO/IATA code of the airport? I will have a look at it!👍

[@heterodyne666]

@@PILOTCLIMB It's Exeter, UK (EGTE). There is 40 metres of turnaround circle before (displaced) 26 threshold. My guess is that the turnaround circle is not certified for landing/takeoff but allows planes to line up on 26 with 40 metres more runway ahead?

[@PILOTCLIMB]

@@heterodyne666 I will have a look and I will let you know soon👍

[@heterodyne666]

@@PILOTCLIMB I think the answer is what I said above. Even if the turnaround circle were structurally capable for take-off/landing, it has a curved edge so the runway width is not maintained. Therefore this area does not count for TORA/ASDA/LDA at the 'stop end' of 08, but it does count for TORA/ASDA at the 'start end' of 26 because it allows an aircraft to line up 40 metres earlier.

[@tonydavis1305]

Are you talking about the runway dumbell..

[@nikadidebashvili3969]

Hello, capitan can you halp me with NOTAM decode. How to decode, can you give me links if you have videos about this topic. Thank you in advance.

[@PILOTCLIMB]

Unfortunately I have not done a video about that.. I'll take your suggestion into consideration for a future content

[@bechirmzoughi320]

Why is the SWY not included in the LDA ?

[@normalbeete5746]

Explain ILS and VOR systems how does it work?

[@PILOTCLIMB]

Hey, thanks for watching I will take your request into consideration for a future video! I wish you a great

[@syedata7092]

Sir what is Runway End Safety Area ? it would be good if you could explain that...

[@vinodjadli8251]

Can TORA, from opposite direction , can be maintained more than LDA. If so, how take off climb surface will be established .

[@PILOTCLIMB]

Hey, many thanks for watching. Could you please elaborate a bit more your question?

[@vinodjadli8251]

Suppose due 3m penetration in first segment R 09 display by 150m. So in case of TORA R 27 that obstacle needs to be clear by 2% for Tk off climb surface {Ref Table 4-2 Annex 14} . Can we restrict TORA R27 =LDA R 09.

[@sivakumaran1981]

Captain for the LDA for RWY 09 in case of emergency and aircraft Is heavy can we use the SWY after passing the DISP THR? passing RWY 27. Why can’t we use it since it is meant for SWY.

[@PILOTCLIMB]

If you are in Emergency and you don't have better options you can yes!

[@tonydavis1305]

In an emergency do you have a choice...??

[@michkaling8840]

Situation: Displacement of threshold is due damage pavement. Hence, it is unusable. Question: Is the displaced distance still included in the computation of TORA, TODA, and ASDA? 2nd Situation, same question: How about if the reason for displacement of RWY-27 is that there is an obstacle to be hurdled near this end. Hope you could answer my questions.

[@PILOTCLIMB]

Hi!! If the displaced threshold is damaged it cannot be used at all and that should be taken into consideration when calculating the takeoff performance. The reason why we have displaced thresholds are multiple, one of them is to allow higher take off masses. I hope this answer you questions

[@michkaling8840]

@@PILOTCLIMB Thank you for answering. I hope you could make a part 2 of this topic with these situations because I have not seen this explanation in Annex 14. *Although it is common sense"

[@tonydavis1305]

It could be permanent or temporary, in which case it will be mentioned in the NOTAM.

[@AleksandraNitecka-rw8yz]

In what cases can TORA be different from one direction to the other on the same runway?

[@dasgeld]

What abou TODR captain? what is it then? What’s the difference between toda and todr?

[@PILOTCLIMB]

Hey, many thanks for watching and the comment. The TODR is the take off distance REQUIRED by your aircraft to reach an height of 35ft over the end runway (or over the end of the clearway if available) should an engine fail at Vef. The TODA is the take off distance you have AVAILABLE, the TODR must be equal or lower than the TODA. Let me know if you still have any questions. I wish you a great day

[@urke367]

Can a boeing 737-800 max on MTOW depart with 2000m TORA,temperature 14,qnh 1018?

[@PILOTCLIMB]

It depends on the wind and other factors. Check the Aircraft Flight Manual

[@gabrielkastoun2048]

And one more thing what is screenheight

[@PILOTCLIMB]

It is a define height. Normally is the height you should be at by the end of the runway or clearway if applicable. Let me know if you still have questions

[@tonydavis1305]

Screen height is that height over the runway where your speed reaches V2 kts after loss of one engine.

[@Vlad-fo1ic]

Why TORA could be different for the same runway ?

[@PILOTCLIMB]

Hey, usually the TORA is the same for both runway directions.

[@Baby_Boomer19]

The accent make it difficult to understand. But good effort by the captain

[@PILOTCLIMB]

Thanks for your feedback

[@IndianIdiot9]

HI.. when runway has only stopway beyond both thresholds, Does the TODA include TODA=TORA + Stopway or is it only TODA=TORA.. can u please explain this

[@PILOTCLIMB]

In case of no Clearway the TODA can include the Stopway, so TODA= TORA + Stopway