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NO ENTRY sign
Note I.- The arrow stroke width, diameter of the dot, and
both width and length of the dash shall be proportioned to the
character stroke widths.
Note 2.- The dimensions of the arrow shall remain constant
for a particular sign size, regardless of orientation.
Arrow, dot and dash
Figure A4-2. (cont.)
APP 4-9
Annex 14 - Aerodromes Volume I
Table A4-1. Letter and numeral widths and space between letters or numerals
Preceding
Letter
A
B
C
D
E
F
G
H
I
J
K
L
M
N
0
P
Q
R
S
T
U
v
W
X
Y
z
b) Numeral to numeral code number
a) Letter to letter code number
Following Letter
Preceding
Numeral
1
2
3
4
5
6
7
8
9
0
c) Space between characters
d) Width of letter
8, D, E, F,
H. I, K, L.
M.N.P,R,U
Code No.
1
2
3
4
INSTRUCTIONS
Letter
A
B
C
D
E
F
G
H
I
J
K
L
M
N
0
P
Q
R
e) Width of numeral
Following number
1. To determine the proper SPACE between letters or numerals, obtain
the code number from table a or b and enter table c for that code
number to the desired letter or numeral height.
2. The space between words or groups of characters forming an
abbreviation or symbol should be equal to 0.5 to 0.75 of the height
of the characters used except that where an arrow is located with a
single character such as 'A +', the space may be reduced to not
less than one quarter of the height of the character in order to
provide a good visual balance.
3. Where the numeral follows a letter or vice versa use Code 1.
4. Where a hyphen, dot, or diagonal stroke follows a character or vice
versa use Code 1.
C. G 0,
Q,S,X,Z
Letter
1
2
3
4
5
6
7
8
9
0
Letter Height (mm)
200 300 400
Space (mm)
APP 4-10
205 274
229 304
178 267 356
137 205 274
171 257 342
137 205 274
A, J, T.
v, w, y
Letter height (mm)
200 300 400
Width (mm)
4. 7
2
2
2
4
2
2
4
2
2
2
1.5
48
38
25
13
170
137
137
137
124
124
137
137
32
127
140
124
157
137
143
137
143
137
4
2
3
2
3
3
2
2
2
2
3
4
2
2
2
2
2
2
2
4
2
4
4
3
4
3
2
1
2
1
2
2
1
1
1
1
2
2
1
1
1
1
1
1
1
2
1
2
2
2
2
2
2. 3. 6.
8, 9, 0
Numeral height (mm)
200 300 400
Width (mm)
Code number
2
2
2
2
2
2
2
1
1
1
2
2
1
1
2
2
2
2
2
2
1
2
2
2
2
2
50
137
1 37
149
137
137
137
137
137
143
71
57
38
19
255
205
205
205
186
186
205
205
48
190
21 0
186
236
205
214
205
214
205
Code number
96
76
50
26
340
274
274
274
248
248
274
274
64
254
280
248
314
274
286
274
286
274
74
205
205
224
205
205
205
205
205
214
1
1
1
2
1
1
2
1
1
1
98
274
274
298
274
274
274
274
274
286
1
2
2
2
2
2
2
2
2
2
Appendir 4 Annex 14 -Aerodromes
H12 A
Gj: H12 p i t : H12
A. Sign with two runway designators B. Sign with one runway designator
Figure A4-3. Sign dimensions
APP 4-11
APPENDIX 5. AERONAUTICAL DATA QUALITY REQUIREMENTS
Table AS-1. Latitude and longitude
Accuracy Integrity
Latitude and longitude Data type Classification
　
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