A computer image of a diamond shape plane with two smaller triangular shaped planes flying next to it
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Futuristic plane designs revealed

10 July 2014 Last updated at 08:37 BST

Futuristic plane designs have been revealed by aerospace company BAE Systems.

The ideas being worked on include planes that can "dock" together to provide more efficient flight.

There's also a rescue plane which has a 3D printer on board, so it can print the right device needed in every situation.

At the moment all the designs are just ideas, but they could be developed by 2040.