The Story of the 1956 Mack Trucks Arctic Expedition to Build the DEW Line

This story goes to show what happens when people roll up their sleeves and try to get something done

Amid nuclear tensions with Russia

The distant early warning line was born Arctic, but how this 63-radar array came to be is a story of sheer motivation.

It all started with the LeTourneau VC-22 Sno-Frighter, a 24-wheel-drive monster that hauled 500 tons of equipment to the DEW line.

It did its job well, but the guys behind the expedition needed something bigger.

And that’s where the bulldog convoy came into play.

The bulldog convoy consisted of 11 LRVSW trucks that were powered by 28-liter Cummins V-12 diesel engines.

Each one put down 600 horsepower and 1,600 pound-feet of torque.

Features included a Mack two—lever Duplex trans, a Mack Planidrive axle bogie, and differential power dividers.

Each truck pulled a 65-foot long trailer with 333,000 LBS or about 165 ton of cargo

In the end, the expedition was a success and the dew line was built

What happened to most of the trucks, however, remains a mystery, as history only tells us that two were sold to a coal mine in Alaska while the rest mysteriously vanished.

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and learn more about the creation of the DEW Line

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