Definition
Air traffic separation provided by applying the full required separation minima — vertical, lateral, or longitudinal — between aircraft as if no other form of separation were in use. Each aircraft is kept apart by the standard distance for the type of separation being applied, without combining or reducing those minima.
Plain English
The controller keeps aircraft apart using one full standard spacing rule on its own, rather than mixing two smaller spacings together to count as enough.
Context Anchor
Seen in air traffic control separation standards, especially where controllers are assigning routes, altitudes, or time/distance spacing between aircraft.
Derivation
‘Composite’ comes from the Latin ‘componere,’ meaning to put together. ‘Noncomposite’ therefore means not put together — the separation is applied as a single, full standard, not as a combination of partial standards.
Why Pilots Care
Determines the exact spacing a controller must maintain when composite procedures are not permitted.
Analogy
It is like using one full safety buffer instead of adding two half-buffers together. Both may be approved in the right setting, but noncomposite separation uses the full buffer from one method.
Intuition Check
Do not read “composite” here as referring to composite aircraft materials. In this term, it means a separation method made by combining parts of different spacing methods; “noncomposite” means that combination is not being used.
Example Sentence 1
The controller used noncomposite separation, keeping the two aircraft 1,000 feet apart vertically with no reliance on lateral spacing.
Example Sentence 2
Noncomposite separation required a full 1,000 feet of vertical spacing between the arriving jets.