Following a comment on one of my previous videos I made this basic introduction to reversing loops. This video covers a manually operated reversing loop scenario and a practical demonstration.
Australian T Trak website
https://sites.google.com/view/australian-t-trak
T Trak, Ntrak website
https://www.ntrak.org
Kato Unitrack website
https://www.unitrack-kato.com/