Trying out my new Hornby Dean Single on Chris’ layout. Due to only one driving axle the pulling power is limited to three coaches; and that’s on near level track! It was a challenge to drive. If the speed dropped it took time to recover due the drive wheels slipping. Too much power and the wheel slip would be so excessive that acceleration was almost zero.
I also own a Triang-Hornby ‘Lord of the Isles’ and with magnetic adhesion it did much better.