CPL Navigation · Practice

The term 'LSALT' (Lowest Safe Altitude) as published in ERSA and IFR procedures means the aircraft will have clearance of at least:

• A.1 000 ft above the highest obstacle within the area defined for the procedure
• B.500 ft above the highest obstacle within a 5 NM wide corridor either side of the planned track centreline
• C.300 ft above terrain in flat areas and 1 000 ft in mountainous terrain above 5 000 ft MSL
• D.2 000 ft above mean sea level across all routes, with no adjustment for local terrain or obstacle height