Questions tagged [declared-distances]

Declared distances are used to determine takeoff and landing performance for aircraft. It bridges the gap between aircraft performance calculations and runway design criteria.

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What are Runway Declared Distances?

Perusing through the A/FD in the United States I see that some runways have declared distances while others do not. What is the meaning of: TODA TORA ASDA LDA
9
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1answer
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Why is “clearway minus stopway” used in V1 adjustments?

Illustrations and/or satellite imagery to explain the difference between clearway and stopway and explaining how they are used by turbine aircraft would be great. From B787 FCOM.
9
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1answer
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How do pilots use stopway, EMAS, clearway and displaced threshold?

I noticed in Why is “clearway minus stopway” used in V1 adjustments? that a stopway and an EMAS are both indicated by yellow chevrons: Same Opa-Locka stopway on the left, and San Diego EMAS on the ...
7
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1answer
493 views

What does the runway distance mean under “Additional Runway Information” on Jeppesen plates?

See my previous question What are Runway Declared Distances? On Jeppesen 10-9 or 10-9A charts, there is a section dealing with Additional Runway Information. Does these distances correspond to the ...
6
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1answer
1k views

Can TODA ever be shorter than TORA, under any circumstance?

I've always been told that TODA* = TORA† + Clearway. I can't really imagine what a negative clearway would be, so that leads me to think that it is required that TODA >= TORA. Interestingly, a ...
5
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1answer
2k views

Does Jeppesen display runway declared distances on their charts?

I noticed that Jeppesen includes additional runway information on their 10-9 or 10-9A charts. Are these listed values consistent with FAA runway declared distances?
3
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1answer
169 views

Can the clearway be located on a lake?

From the FAA AIM: All 14 CFR Part 139 airports report declared distances for each runway. Other airports may also report declared distances for a runway if necessary to meet runway design standards ...
1
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2answers
4k views

How do runway declared distances affect my takeoff distance?

See these questions. What is balanced field length? What are runway declared distances? My multi-engine jet airplane uses a balanced field length concept. Most airports served by airliners have ...