Boeing and Airbus engines are too big and heavy to be transported by Boeing and Airbus airplanes

Did you know that Boeing and Airbus engines are too big and heavy to be transported by Boeing and Airbus airplanes? That's pretty ironic isn't it? They have to get Antonov An-124s to carry the engines around.

"Russian cargo company Volga-Dnepr has contracts with Boeing to ship outsize aircraft components to their Everett plant. The An-124 is used for airlifting (in fully assembled form) the massive General Electric GE90 turbofan engines used on the Boeing 777 airliner. Rolls-Royce also contracts the Antonov An-124 to transport the Trent family engines to and from their test facilities worldwide."

[link to en.wikipedia.org]