Z re: Zulu (time)
ZAO Zakrytoe Aktsionernoye Obshchestvo; Russian company constitution
zero fuel weight MTOW minus fuel; defining limit on maximum payload
zero-lifed Refurbishment of an aircraft (or a part) to 'as new' condition
zero/zero seat Ejection seat designed for use at zero altitude and zero speed
ZFW Zero fuel weight
Zulu Greenwich Mean Time / UTC (archaic)
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Glossary