Difference between CAT I, CAT II and CAT III
Air Law / Operations
01 · Direct Answer
ILS categories progressively support operations in lower visibility, with increasingly demanding minima, equipment, infrastructure, crew qualification and operational approval.
02 · Operational Explanation
The category describes an operational capability combining aircraft systems, ground facilities, runway protection, visual aids, crew training and procedures. CAT III includes subcategories and may use decision height or no decision height depending on approval.
03 · Why It Matters
The approach chart alone does not establish what a crew may use; any downgrade in the system can change the available minima.
04 · Key Considerations
05 · Visual Insight
Simplified concept view · Not for operational calculation
Annex 6 — Operation of Aircraft
All-weather Operations · Demo reference
Air Operations — Low Visibility Operations
SPA.LVO · Demo reference
Future operator answers will add locked, private references from company manuals, SOPs, fleet documents, training manuals, compliance records and safety reports.
07 · Confidence Level
Generally supported; specific confirmation is required. The category framework is established, but exact minima depend on approvals and system status.
08 · Limitations / Safety Note
This static demonstration supports learning and pre-flight study only. Confirm operational decisions against current regulations, approved aircraft data, charts, NOTAMs and applicable operator procedures.