Opposite Direction Aircraft

Aircraft are operating in opposite directions when:
  1. They are following the same track in reciprocal directions; or
  2. Their tracks are parallel and the aircraft are flying in reciprocal directions; or
  3. Their tracks intersect at an angle of more than 135.

Source: Pilot Contoller Glossary (PCG)

#
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z