10.01Definitions for Chapter 10

10.01 Definitions for Chapter 10

In this Chapter:

adequate vertical margin: see section 10.02.

Category A, in relation to a rotorcraft, means a multi‑engine rotorcraft that is:

(a) designed with engine and system isolation features stated for Category A requirements in any of the following:
(i) Part 27 of the FARs;
(ii) Part 29 of the FARs;
(iii) EASA CS — 27;
(iv) EASA CS — 29;
(v) an equivalent airworthiness certification code of a Contracting State; and
(b) capable of operation using take‑off and landing data scheduled under a critical engine failure concept, which assures adequate designated ground or water area and adequate performance capability for continued safe flight or safe rejected take‑off in the event of engine failure, as mentioned in the rotorcraft’s flight manual.

Note: This definition is based on the ICAO, FAA and EASA definitions of the term Category A in relation to rotorcraft.

Category A rotorcraft means a rotorcraft that:

(a) meets the requirements stated in the definition of Category A; and
(b) is type-certificated in accordance with any of the following:
(i) Part 27 of the FARs;
(ii) Part 29 of the FARs;
(iii) EASA CS — 27;
(iv) EASA CS — 29;
(v) an equivalent airworthiness certification code of a Contracting State.

D, for a rotorcraft, means the maximum dimension of the rotorcraft.

defined point before landing, for a rotorcraft flying in performance class 2 or performance class 2 with exposure, means the point in the approach and landing stage of the flight after which:

(a) the rotorcraft may not be able to continue the flight safely with 1 engine inoperative; and
(b) a forced landing may be required.

exposure time, for a rotorcraft that is flying in still air, means the period during which the rotorcraft, with 1 engine inoperative, may not be able to achieve a safe forced landing or continue the flight safely.

landing decision point, for a landing of a rotorcraft at an aerodrome, means the last point, mentioned in the rotorcraft’s flight manual, from which, if an engine failure is recognised:

(a) a baulked landing may be initiated; or
(b) the landing may be continued safely.

landing distance available, for a landing of a rotorcraft at an aerodrome, means the total of the following that are available for the rotorcraft to complete the landing from the height, mentioned in the rotorcraft’s flight manual for the landing procedure being used, above the final approach and take‑off area for the aerodrome: