Why is Paul Allen building the world’s largest airplane? Perhaps to launch a space shuttle called Black Ice

Why is Paul Allen building the world’s largest airplane? Perhaps to launch a space shuttle called Black Ice.
The Washington Post
A massive airplane being built by Microsoft co-founder Paul Allen moved a step closer to flight last week, when it crept out of its hangar in Mojave, Calif., and practiced rolling down the runway, hitting a top speed of 46 mph.

Known as Stratolaunch, the plane has a wingspan even greater than that of business mogul Howard Hughes’s famed Spruce Goose and is designed to carry as many as three rockets, tethered to its belly, to about 35,000 feet. Once aloft, the rockets would drop, then fire their engines and deliver satellites to orbit.

But Allen has even bigger ambitions for Stratolaunch and is considering pairing it with a new space shuttle that’s known inside the company as Black Ice.
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