Document ID: chunk:federal_register_of_legislation:F2024C00332:reg:3:p19
Version: federal_register_of_legislation:F2024C00332
Segment Type: reg
Provision Reference: reg 3 (pt 19/20)
Character Range: 91822–94489

the start of the take‑off to the point where the rotorcraft comes to a full stop following an engine failure and rejection of the take‑off at the take‑off decision point for the take-off.
relevant obstacle, for the take‑off stage, or the approach and landing, or baulked landing stage, of a flight of a rotorcraft flying in performance class 1 or 2, or performance class 2 with exposure, means an obstacle that is relevant, within the meaning of section 10.32, to that stage of the flight.
S, for a point in a flight of a rotorcraft, means:
 (a) for the take-off and initial climb stage of the flight — the horizontal distance the rotorcraft has travelled from the end of the take‑off distance available – rotorcraft, for a take-off of the rotorcraft at an aerodrome, to that point; or
 (b) for the approach and landing, or baulked landing stage of a flight — the horizontal distance the rotorcraft (the relevant rotorcraft) has travelled from the end of the take‑off distance available – rotorcraft, for a take-off of a rotorcraft at an aerodrome at which a baulked landing of the relevant rotorcraft is being conducted, to that point.
take‑off decision point, for a take‑off of a rotorcraft at an aerodrome, means the point mentioned in the rotorcraft's flight manual, if an engine failure is recognised:
 (a) up to, and at, which the take‑off may be safely rejected; or
 (b) at, and after, which the take‑off may be continued safely.
take‑off distance available – rotorcraft, for a take‑off of a rotorcraft at an aerodrome, means the total of the following that are available for the rotorcraft to complete the take‑off:
 (a) the length of the final approach and take‑off area for the aerodrome;
 (b) the length of any additional area, in relation to the aerodrome, that is suitable for the rotorcraft to overfly after the take-off decision point, for the take-off, and accelerate.
take‑off distance required – rotorcraft: see section 10.03.
transition point, for a flight of a rotorcraft that begins in VMC but is not conducted wholly in VMC, means the point in the flight at which the rotorcraft stops flying in VMC and starts to fly in IMC.
VTOSS, for a rotorcraft, means the minimum speed at which climb of the rotorcraft is achieved with 1 engine inoperative and the remaining engines operating within the operating limits mentioned in the rotorcraft's flight manual for a take‑off.

10.02  Meaning of adequate vertical margin
  The adequate vertical margin, for a rotorcraft, is the minimum vertical distance the rotorcraft must be from an object during a stage of a flight mentioned in:
 (a) the rotorcraft's flight manual; or
 (b) if paragraph (a) does not