 |
| |||
| abbreviated visual indicator system (глиссады) | |||
| упрощённая система визуальной индикации: 5 phrases in 3 subjects |
| Airports and air traffic control | 1 |
| Aviation | 3 |
| Military | 1 |
|
| |||
| abbreviated visual indicator system (глиссады) | |||
| упрощённая система визуальной индикации: 5 phrases in 3 subjects |
| Airports and air traffic control | 1 |
| Aviation | 3 |
| Military | 1 |