When holding at a VOR above 14,000 feet, when should timing be started?

Timing for holding patterns at a VOR above 14,000 feet should indeed start when you are over or abeam the VOR, whichever occurs later. This is standard operating procedure derived from IFR holding pattern regulations.

The rationale behind this timing rule is to account for the geometry of the holding pattern and ensure that the aircraft maintains accurate timing to allow for consistent holding. Starting the timing over the VOR might not provide a complete representation of the correct time to turn for the inbound leg of the hold, especially if the aircraft has a significant tailwind or there's a divergent flight path.

By waiting for the later point of over or abeam the VOR, pilots can achieve a more consistent approach to timing, which is crucial for maintaining proper spacing and altitude in a holding pattern. It allows pilots to account for any variations in wind or course correction that may affect the time spent in the hold.

This understanding is essential for effective IFR flight operations, particularly as altitude increases, where timing can be influenced by various factors like wind shear or weather conditions.