Document ID: chunk:federal_register_of_legislation:F2024C00332:front:0:p6
Version: federal_register_of_legislation:F2024C00332
Segment Type: other
Provision Reference: 
Character Range: 14886–17634

can be met and which is operational at the expected time of use. Alternate aerodromes include the following:

                Take‑off alternate.  An alternate aerodrome at which an aircraft would be able to land should this become necessary shortly after take‑off and it is not possible to use the aerodrome of departure.

                En‑route alternate.  An alternate aerodrome at which an aircraft would be able to land in the event that a diversion becomes necessary while en route.

                Destination alternate.  An alternate aerodrome at which an aircraft would be able to land should it become either impossible or inadvisable to land at the aerodrome of intended landing."
APU means auxiliary power unit.
ATC means air traffic control.
ATS means Air Traffic Services.
Note: The term Air Traffic Services is defined in the Dictionary.
automatic ELT: see section 11.43.
avoid area of the HV envelope, of a rotorcraft, means the area delineated on the height-velocity envelope diagram in the rotorcraft's flight manual that shows the parameters within which operations of the rotorcraft should be avoided.
destination alternate aerodrome means an alternate aerodrome that is a destination alternate (within the meaning of Annex 2 to the Chicago Convention).
ELT: see section 11.42.
en route alternate aerodrome means an alternate aerodrome that is an en-route alternate (within the meaning of Annex 2 to the Chicago Convention).
(E)TSO means ETSO or TSO.
final approach and take-off area, for a rotorcraft at an aerodrome, means the area of the aerodrome:
 (a) from which a take-off of the rotorcraft is commenced; or
 (b) over which the final phase of approach to hover is completed by the rotorcraft.
GNSS means global navigation satellite system.
headset includes a flying helmet that incorporates a headset.
landing performance requirements, for a rotorcraft, means the landing performance requirements for the rotorcraft stated in its flight manual.
LSALT means lowest safe altitude.
minimum flight altitude, for a point on the route, or a route segment, of a flight of a rotorcraft, means:
 (a) for an IFR flight, or VFR flight at night:
 (i) the published LSALT for the route or route segment; or
 (ii) if subparagraph (i) does not apply — the LSALT for the route or route segment; or
 (b) for a VFR flight at night, when not using the LSALT determined under paragraph (a) — 1 000 ft above the highest feature or obstacle on the ground or water within 10 nautical miles ahead, and to either side, of the rotorcraft at that point; or
 (c) for a VFR flight by day over a populous area — 1 000 ft above the highest feature or obstacle within a horizontal radius of 300 m of that point on the ground or water immediately below