CASA 204/11 – Instructions under CAR 235A – minimum runway width for aeroplanes (Cth)

Instrument number CASA 204/11

I, GREGORY JAMES HOOD, Executive Manager, CASA Operations Division, a delegate of CASA, make this instrument under subregulation 235A (1) of the Civil Aviation Regulations 1988 (CAR 1988).

[Signed Greg Hood]

Greg Hood

Executive Manager
CASA Operations Division

30 May 2011

Instructions under CAR 235A — minimum runway width for aeroplanes

1          Duration

This instrument:

(a)   commences on 1 June 2011; and

(b)   stops having effect at the end of February 2012.

2          Application

This instrument specifies the minimum runway width applicable to an aeroplane or a type of aeroplane.

3          Instructions

I issue the instructions in Schedule 1.

Schedule 1          Instructions

1          Definitions

1.1     In this Schedule, an aeroplane’s reference field length is:

(a)   in the case of an aeroplane to which Civil Aviation Order 20.7.1B applies — the balanced field length; or

(b)   in the case of any other aeroplane — the take-off distance that the aeroplane requires for take-off;

in accordance with subclause 1.2.

1.2     For subclause 1.1, the balanced field length or take-off distance that an aeroplane requires for take-off is the balanced field length or take-off distance that, according to the aeroplane’s flight manual, the aeroplane requires:

(a)   on a level runway; and

(b)   at maximum certificated take-off weight; and

(c)   in still air; and

(d)   at sea level; and

(e)   in standard atmospheric conditions.

1.3     For the purposes of these instructions, the aerodrome reference code (code number and code letter) for an aeroplane is obtained from Table 1 as follows:

(a)   the code number for the aerodrome is the number in Column 1 for the aeroplane reference field length in Column 2; and

(b)   the code letter for the aerodrome is the letter that occurs later in the alphabet of the letters from Column 3 for the wing span in Columns 4 and the outer main gear wheel span in Column 5.

Table 1 — Aerodrome reference code (clause 1.3)

Column 1	Column 2	Column 3	Column 4	Column 5
Code number	Aeroplane reference field length	Code letter	Wing span	Outer main gear wheel span
1	Less than 800 m	A	Up to but not including 15 m	Up to but not including 4.5 m
2	800 m up to but not including 1 200 m	B	15 m up to but not including 24 m	4.5 m up to but not including 6 m
3	1 200 m up to but not including 1 800 m	C	24 m up to but not including 36 m	6 m up to but not including 9 m
4	1 800 m and over	D	36 m up to but not including 52 m	9 m up to but not including 14 m
E	52 m up to but not including 65 m	9 m up to but not including 14 m
F	65 m up to but not including 80 m	14 m up to but not including 16 m

Note   Table 1 is in accordance with Table 2.1-1 of the Manual of Standards Part 139 — Aerodromes, which addresses the use of ICAO aerodrome reference codes to specify standards for aerodrome facilities.

2          Minimum runway width for aeroplanes

     Subject to clauses 3, 4, 5 and 6, the minimum runway width for an aeroplane is obtained by using the aerodrome reference code (code number and code letter) applicable to the aeroplane type that is obtained from Table 1 and applying this code to the minimum runway width data provided in Table 2. The minimum runway width for the aeroplane is the intersection of the code number and the code letter.

Table 2 — Minimum runway widths (clause 2)

Code letter
Code number	A	B	C	D	E	F
1	18 m	18 m	23 m	–	–	–
2	23 m	23 m	30 m	–	–	–
3	30 m	30 m	30 m	45 m	–	–
4	–	–	45 m	45 m	45 m	60 m

3          Minimum runway width for certain aeroplanes

3.1     This clause applies to the following aeroplanes:

(a)   an aeroplane for which a narrower runway width than that applicable under clause 2 is specified in Table 3-1, 3-2 or 3-3 in Advisory Circular 150/5300-13 issued by the Federal Aviation Administration of the United States of America;

(b)   an aeroplane that:

(i)  has an aeroplane reference field length of less than 1 500 m; and

(ii)  for the purpose of taking-off or landing — has the crosswind limits specified in its flight manual reduced by 50%.

3.2     Subject to clauses 4, 5 and 6, the minimum runway width for an aeroplane to which this clause applies is the distance specified in Table 3 calculated in the same manner as described in clause 2 for Table 2.

Table 3 — Minimum runway widths (subclause 3.2)

Code letter
Code number	A	B	C	D	E	F
1	15 m	15 m	18 m	–	–	–
2	18 m	18 m	23 m	–	–	–
3	23 m	23 m	23 m	30 m	–	–
4	–	–	30 m	45 m	45 m	45 m

4          Minimum runway width for aeroplanes with maximum certificated take-off weight of not more than 5 700 kg

The minimum runway width for an aeroplane that has a maximum certificated take-off weight of not more than 5 700 kg and is taking off from, or landing at, a place that meets the requirements of paragraph 92 (1) (d) of CAR 1988 is 10 m.

5          Minimum runway width for an Airbus A380 aeroplane

The minimum runway width for an Airbus A380 aeroplane is the same as the minimum runway width, determined in accordance with clauses 2 and 3, for an aeroplane with an aerodrome reference code of 4E.

6          Minimum runway width for a Bombardier DHC8-400 aeroplane

The minimum runway width for a Bombardier DHC8-400 aeroplane is the same as the minimum runway width, determined in accordance with clauses 2 and 3, for an aeroplane with an aerodrome reference code of 3C.