Document ID: chunk:federal_register_of_legislation:F2024C00332:reg:3:p20
Version: federal_register_of_legislation:F2024C00332
Segment Type: reg
Provision Reference: reg 3 (pt 20/20)
Character Range: 94250–95858

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 apply — the rotorcraft operator's exposition.

10.03  Meaning of take‑off distance required – rotorcraft
 (1) For a take‑off of a multi‑engine rotorcraft, the take‑off distance required – rotorcraft is the distance, calculated in accordance with the factors mentioned in subsection (2), from the start of the take‑off to the point at which the rotorcraft achieves all of the following:
 (a) VTOSS for the rotorcraft;
 (b) a height of 35 ft above the take‑off aerodrome;
 (c) a positive climb gradient.
 (2) For subsection (1), the factors are that:
 (a) 1 engine of the rotorcraft is inoperative at the take‑off decision point for the take-off; and
 (b) the remaining engines of the rotorcraft are operating within the operating limits mentioned in the rotorcraft's flight manual for a take‑off.

10.04  When a rotorcraft is flown in performance class 1
  A multi‑engine rotorcraft is flown in performance class 1, during the stage of flight mentioned in column 1 of an item in the following table, if the rotorcraft is flown, during the stage, in accordance with the requirements stated in the provision mentioned in column 2 of the item.

Table — Performance class 1 requirements
Item                                      Column 1                                  Column 2
                                          Stage of flight                           Provision