I currently fly the A320 but the question would apply to any aircraft at high altitude. When entering a holding pattern at altitude the angle of bank you get is considerably less than a rate one turn (because the TAS is so high) which leads to my problem - how do I know how long it is going to take to turn the full 360 degrees?
I often need to enter a pattern in order to leave the fix at a particular time and can adjust the timing of the outbound leg to suit this, does anyone have a rule of thumb though to calculate the timing of the turns??
Cheers!!