Declared Distnaces

Question 1

Declared distances are calculated to the nearest?

Answer 1

Metre of foot for runway intended for use.

Question 2

What are the 4 declared distances?

Answer 2

TORA
TODA
ASDA
LDA

Question 3

What does TORA Stand for?

Answer 3

Take off run available

Question 4

What does TODA stand for?

Answer 4

Take off Distance Available

Question 5

What does ASDA stand for?

Answer 5

Accelerate Stopping Distance available

Question 6

What does LDA stand for?

Answer 6

Landing Distance Abilable

Question 7

Define a stopway

Answer 7

A defined rectangular area on the ground at the end of the Take off run available (TORA) prepared as a suitable area in which an aircraft can be stopped in case of an emergency.

Question 8

Define clearway

Answer 8

A defined area on the ground under the control of the appropriate entity, selected or prepared as suitable area over which an aircraft may make a portion of its initial climb out to a specified height.

Question 9

A clearway length cannot exceed?

Answer 9

Whichever is the least of either:
1) the distance to the first upstanding obstacle (excluding lightweight, frangible, mounted objects not exceeding 0.9 above ground level)

2)the distances the point where terrain projects through a 1:80 slope(code 3 or 4) or a 1:50 slope (code 1 or 2)

Question 10

What does RESA stand for?

Answer 10

Runway End Safety Area

Question 11

What is the purpose of a RESA?

Answer 11

Intended to minimise risks arising when an aeroplane overruns or undershoots a Runway.

Question 12

When shall a RESA be provided?

Answer 12

At each end of the strip enclosing runways code 3+4 and instrument runway code 1+2

Question 13

Is a RESA essential for visual runway code 1+2?

Answer 13

No

Question 14

What is the minimum length of a RESA for a code 3 +4 Runway?

Answer 14

90m

Question 15

What is the minimum length for a code 1+2 (instrument)

Answer 15

30m

Question 16

What is the usual limit of a RESA?

Answer 16

ILS localiser (or boundary fence)

Question 17

What is the width of a RESA?

Answer 17

Twice that of the associated runway symmetrically disposes about the extended centre line

Question 18

Is the surface the same standard or graded area of the runway?

Answer 18

No

Question 19

Define TORA

Answer 19

Length of runway available available and sustainable for ground run of an aeroplane taking off. (Most cases will correspond to the length of runway pavement)

Question 20

Define TODA

Answer 20

Length of TORA plus length of clearway. Where no clearway exists TODA=TORA

Question 21

Define ASDA

Answer 21

Length TORA plus length of any associated stopway. Where no stopway exists ASDA is equal to TORA

Question 22

Define LDA.

Answer 22

Length of runway which is available and suitable for ground landing run of an aeroplane.

Question 23

If a runway has a temporary obstacle within a runway strip what 3 things can be done?

Answer 23

1) Runway should be withdrawn
2) length and declared distances reduced(LDA reduced but TORA remains the same)
3) Runway downgraded to visual