A jet engine made of Legos (pictures)

Using 152,455 Lego bricks, Rolls-Royce builds a jet engine that measures 4.9 feet long and 6.5 feet wide. Together, all those Legos stack up to an astounding 676 pounds.

Leslie Katz

July 10, 2012 5:37 p.m. PT

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Rolls-Royce

Lego jet engine

Rolls-Royce yesterday unveiled a half-size Lego version of its powerful turbofan Trent 1000 jet engine found on each Boeing 787 Dreamliner wing.

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Rolls-Royce

Engine closeup

Unveiled at the Farnborough International Airshow in England, the Lego engine uses 152,455 bricks for an overall size of 4.9 feet long and 6.5 feet wide. Together, all of those Legos stack up to an astounding 676 pounds.

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Rolls-Royce

Engine blades

The Lego jet engine's blades rotate just like the real deal. The high-pressure turbine blades inside the actual engine rotate at 13,500rpm, with their tips reaching 1,200 mph -- twice the speed of sound.

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Rolls-Royce

Looking down the length

The Lego jet engine took four people eight weeks to complete. They built and joined together 160 separate engine components to replicate a real jet engine.