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.

Filter by
Sorted by
Tagged with
0 votes
0 answers
159 views

How to calculate take-off and landing distances for a light plane?

I cannot find a generic takeoff chart for the 850 lbs BD-5B Micro-plane. How can I find, generate, or calculate the takeoff and landing distances needed? I did find this chart below and included the ...
Justintimeforfun's user avatar
8 votes
1 answer
962 views

Why do we calculate 25% more of TODR?

In general aviation aircraft, we are being told to calculate TODR (takeoff distance required) using AFM and TODR x 1.25. Why do we need the value with 25% added?
Krishna Kanth's user avatar
4 votes
1 answer
364 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 ...
user avatar
4 votes
1 answer
5k 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?
wbeard52's user avatar
  • 12.6k
10 votes
2 answers
11k views

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.
user avatar
6 votes
2 answers
2k 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 ...
GeneralMike's user avatar
1 vote
2 answers
6k 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 ...
wbeard52's user avatar
  • 12.6k
7 votes
1 answer
762 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 ...
wbeard52's user avatar
  • 12.6k
12 votes
2 answers
17k views

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
wbeard52's user avatar
  • 12.6k