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Projected lap time

The projected lap time estimates the lap a car is currently on from the sectors it has already completed. It is recalculated at every sector line crossing, is blank while the car is in the first sector of a lap (nothing has been completed yet), and is cleared when the car pits in.

Mode​

There are three modes for HH Timing to calculate the projected lap time:

  • Best sectors
  • %diff to best
  • Best lap

The mode is selected in the backstage options, in the Calculations group (Projected lap time mode). It is an application setting rather than a project setting, so it is kept from one project to the next, and a change takes effect at the next sector crossing.

Best sectors​

The best sectors mode will sum every current sector in the lap with the remaining best sectors for the car.

Example

In this case, the projected lap time in the current lap (7) is:
Current lap sectors sum = 51.758 +
Remaining best sectors in the lap = 33.660 + 41.045
= Projected Lap Time = 126.463 sec

%diff to best​

The %diff to best mode will calculate a delta in % between the sectors already completed and the best sectors. This delta will then be applied to the remaining best sectors.

Example

In this case, the projected lap time in the current lap (7) is:
Current lap sectors delta to best = (51.758-51.663)/51.663 = 0.184%
Projected Lap Time = 51.758 + 33.660*(100+0.184) + 41.045*(100+0.184) = 126.600

Best lap​

The best lap mode will sum every current sector in the lap with the remaining sectors from the fastest lap of the car.

Example

In this case, the projected lap time in the current lap (7) is:
Current lap sectors sum = 51.758 +
Remaining sectors from the fastest lap (6) = 33.660 + 41.045
= Projected Lap Time = 126.463 sec

If a sector of the current lap is missing, or the car has no best for one of the remaining sectors (for example on its first flying lap), no projection is shown.

Display​

The projected lap time is used in four columns on the Main Scoreboard:

  • Proj Time - Displays the projected lap time
  • Proj Gap - Displays the delta between the projected lap time and the best lap time of the car
  • Proj S/F - Displays the projected Start/Finish line crossing time, from the start time of the current lap and the projected lap time
  • Proj P - Displays the position in class the car would hold if it completed the projected lap: cars are ranked on the faster of their projected lap and their best lap

When the projected lap is faster than the car's best lap, Proj Time takes the colour of the best level it would reach (stint, driver, car, category or overall), with the same colours as the Last and Best columns, and Proj Gap is green. When it is slower, both columns are red.