mahanoyplanetop

The Mahanoy Plane Engineering Feat

The Mahanoy Plane is an engineering feat that moved hundreds of millions of tons of anthracite coal up Broad Mountain, just north of Frackville, PA.  What made this mega-machine run was a tandem frictional rope with a 6,000 horsepower steam hoist at Mahanoy Plane. The anthracite coal from the surrounding 48 collieries went through the Read More