The Clock for Timed Turns

[MAKG1]

That's true for 172s -- it's a function of speed, so "most" is not true; there is a wide variety of cruise speeds among SEL airplanes. But are you (and your AI) really so precise in your bank angle as for 17 vs 15 deg to make a difference? It also makes a difference on that level between fast and slow cruise, though not so much on a 172 because the fast cruise isn't that fast.

 

[dmspilot]

quote

Start the roll-in when the clock's second hand passes a cardinal point, hold the turn at the calibrated standard rate indication, and begin the roll-out when the computed number of seconds has elapsed. If the rates of roll-in and roll-out are the same, the time taken during entry and recovery does not need to be considered in the time computation.