I love the parade video, especially the little vehicles. But the tank perplexes me a little. Is it steam powered or there because it is represents traction? Are there any steampunkers who members of the club?
The tank was there because it was cool and unusual.
Although the focus is on steam during the steamfest, they do have a lot of other vehicles and equipment there too. Old trucks, vintage cars, a display of little farm engines, some steam, others not. If the day turns out to be a total fire ban, they are not allowed to run any of the mobile steam engines, so they park them around the sides of the arena, and do various displays with the IC powered vehicles instead. This is their big money making event for the year, so they stretch their scope to historical things the public is likely to enjoy.
Also, can you remember when during the day the grand parade was roughly?
My photos of the parade are timestamped from 2pm onwards, but I don't always get daylight savings right on my camera.