One humorous aspect of these boom/crane cars relates to the sequencing of the movement with the audio. The operator is always taking action before the supervisor gives the orders. It reminds me of the stories my uncle used to tell me when he was a steam shovel operator during the 1950s. In the winter it was so cold and on sweltering days in summer it was so hot that the supervisor would disappear for long periods at a time. When he would finally show up, he would always commend my uncle on the "good job" he had done. That's a good way for a boss to inoculate himself from his own prodigal ways.
This same uncle always gave me a nice accessory for my Lionel train set at Christmas. Until one year he gave me a model airplane with an operating engine and the world started to change. My last Christmas with him, he gave me a Pickett slide rule and an engineering drafting kit. It would be 41 years before I would own another train. I always think of him when I run trains or lower the boom.
I've had several inquiries as to whether there are any more videos of the outdoor railroad. Actually I have a Vimeo hosted website that has many more videos and photos of the Woodshire RR as well as videos of other model layouts from around the country, and some movies of real trains:
http://www.railsforfun.com