Can you please name an official document where it says that the yellow line at the end of the runway is a "taxi-out" line and not a "taxi-in" line? Hard to quote to a trainee without documentary proof
The painted line have NOTHING to do with lineup distance.
Aerodromes make use of intersection take-offs to maintain runway capacity and efficiency.
4.2 Due to the lack of consistent guidance, aerodromes have chosen 3 different origins to calculate the distance:
- a) The downwind edge of the taxiway, extended ahead to meet the runway centreline;
- b) The upwind edge of the taxiway extended ahead to meet the runway centreline;
- c) The tangent point where the taxiway centreline curve meets the runway centreline.
4.3 When deciding on the origin of the intersection declared distance, consideration must be given to understanding that the origin of full-length declared distances is, in most cases, the end of concrete/asphalt; therefore, following aircraft line-up, the origin is behind the aircraft. An allowance for the length of the aircraft is taken into account when calculating the remaining distance. ICAO publishes the following in Annex 6 Part I, Chapter 5, paragraph 5.2.8.1: “In determining the length of the runway available, account shall be taken of the loss, if any, of runway length due to alignment of the aeroplane prior to take-off.” Aircraft performance manuals make the same calculation for line-up allowance irrespective of where that line-up occurs along the runway. Therefore, flight crews would expect to calculate a similar correction distance at an intersection departure as for a full-length departure, regardless of where the origin is located.
4.4 The use of the downwind origin as the basis for calculating declared distances from a runway intersection provides consistency with the full-length calculation.