GUTTED after a fire-bombing in Tasmania, the Gatsby Flyer arrived at the DownsSteam Tourist Railway and Museum three and a half years ago looking a little worse for wear.

But after a mammoth restoration effort, the 1939 rail motor will be looking new for the DownsSteam Australia Day open day on Friday.

The engine will be open for inspection by the public at 16 Cambooya St, Drayton, from 10am until 2pm.

"It's great to see it living and breathing finally. It's been a long time coming," project manager Andrew Caldwell said.

While the Gatsby Flyer will be the main attraction on Australia Day at DownsSteam, the event will also feature the Toowoomba Municipal Band, meals, tours of the site, face-painting for the kids, and flag-raising at 11.30am.

For more information contact DownsSteam on 4630 2358.

The public is reminded to wear closed-in shoes on the day.