Dhaka, Jan. 21 -- The largest Airplane, yes its longer than a standard football field.

The Stratolaunch -- code name "Roc" -- is the largest plane ever built. Its wings measure 385 feet across, longer than a professional football field. The Stratolaunch is powered by six 250 kN (56,000 lbf) Pratt & Whitney PW4056 engines harvested from the Boeing 747-400s.

It can launch up to 3 rockets per flight For its first launch, the Stratolaunch will likely carry a single Pegasus XL rocket, built by Orbital ATK. The craft is designed, however, to carry as many as three of these between its twin fuselage.

The Stratolaunch needs a lot of support from its 28 wheels.There are 12 main landing-gear wheels and two nose-gear wheels on each side.

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