| |||
| overgangsniveau | |||
| English thesaurus | |||
| |||
| The lowest flight level available for use above the transition altitude | |||
|
transition level : 3 phrases in 1 subject |
| Transport | 3 |
| |||
| overgangsniveau | |||
| English thesaurus | |||
| |||
| The lowest flight level available for use above the transition altitude | |||
|
transition level : 3 phrases in 1 subject |
| Transport | 3 |