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The Flying Boxcars were powered by two Wright R-3350 Duplex Cyclone radial engines, each with 3,500 horsepower, and could reach a maximum speed of 296 miles per hour.

It is not as interesting as a radial engine.

The DC-3’s twin, 9-cylinder radial engines belch black smoke out of the exhaust pipes as their started up one at a time.

The plan is to run all four of its radial engines Friday, a step that volunteers hope will put it one step closer to its first flight.

But he says its 1,000-horsepower radial engine has seized up and will have to be rebuilt, which likely will take two to three years.