Final answer:
Yes, you must wait until you cross the TRSSK waypoint before making your turn onto J14 unless you have alternate instructions from ATC, as waypoints are often designed to be fly-over points for traffic flow and safety.
Step-by-step explanation:
When flying northbound on J109 and your clearance calls for you to make a right turn to J14 at TRSSK waypoint, standard procedure dictates that you must wait until you actually cross the waypoint before initiating your turn, unless otherwise instructed by Air Traffic Control (ATC). This is because some waypoints are designed to be fly-over points to ensure traffic flow and separation standards are maintained.
In practical terms, a pilot must adhere to ATC instructions or the filed flight plan, which means you must cross the waypoint before making the turn unless ATC provides a different clearance allowing you to turn prior to the waypoint. This helps to prevent any potential conflicts with other aircraft and maintains the integrity of the air traffic system.
In aviation, waypoints are used to define specific geographical locations that aircraft must navigate to during a flight. In the given scenario, the TRSSK waypoint is the convergence point of J109 and J14. If the northbound aircraft has a clearance to make a right turn to J14 at the TRSSK waypoint, it does not have to wait until crossing the waypoint to make the turn. The aircraft can make the turn as soon as it reaches the position where the turn to J14 begins.
This is because not all waypoints are fly-over waypoints. Fly-over waypoints require the aircraft to fly over them before making any turns. However, in this case, the clearance allows the aircraft to make the turn at the designated waypoint without having to wait until crossing it.
Therefore, the correct answer is No, the aircraft does not have to wait until actually crossing the TRSSK waypoint before making the turn to J14.