Here's a photo of my Dads steam tug Flying Eagle (Clyde Towage) taken at the marine lake Portishead on Saturday.
The model is totally scratch built with the hull and superstructure made up from tinplate and brass. The steam plant is a twin 3/4" x 3/4" engine and the burner is run on petrol. Scale is 7/16"- Foot and weighs 42lbs
I hope this is of interest.
Regards
Kevin