The Great Dorset Steam Fair has started and runs until Sunday.
The 2012 event was disrupted by heavy rain with some displays cancelled.
This year it is hoped up to 200,000 people will turn out at the event near Blandford over the next five days.
It is one of the largest steam fairs in Europe with hundreds of vintage vehicles including more than 250 tractors.
Our Reporter Martin Dowse sent this report: