RallyMeter Historic rally tool 2.1.4
the author of this app says:
The best tool to help you on historic (TSD) rally racing.
Measures the distance to be traveled at a specified speed.
Stores up to 99 stages with up to 99 average speeds.
Automatic roadbook start times calculation and much more...
At a fraction of the cost of simple digital "speed tables".
Limited to 1500 meters/feet