Judging by the quantity of photos and films on the topic it seems that May is the traditional start of the Steam Rally season. I love going round steam rallys and looking at the old workhorses many fully restored and condemned to a life of display. 

Most of the time the motors are doing nothing but running but occasionally they power things. Like this funicular which I have seen in many steam rallys over the years, each one it looks a little more dog eared.