Answer: ech

AnswerCrossword Clue
ECH

Level of authority (abbr.)

ECH

Command level (abbr.)

ECHCommand level: Abbr.
ECH

Airplane formation: Abbr.

ECH
Flight formation: Abbr.
ECH
Military group: Abbr.
ECHPlane formation: Abbr.
ECHFlying formation: Abbr.
ECHAircraft formation: Abbr.
ECHR.A.F. formation
ECHLevel of hierarchy: Abbr.
ECHHierarchical level: Abbr.
ECHLevel in an org.