British troops in Afghanistan are the first to use state-of-the-art handheld nano surveillance helicopters.

The Black Hornet Nano Unmanned Air Vehicle measures around 4 inches by 1 inch (10cm x 2.5cm) and provides troops on the ground with vital situational awareness.

The Black Hornet is equipped with a tiny camera which gives troops reliable full-motion video and still images. Soldiers are using it to peer around corners or over walls and other obstacles to identify any hidden dangers and the images are displayed on a handheld terminal.

The Black Hornet weighs as little as 16 grams and has been developed by Prox Dynamics AS of Norway as part of a £20 million contract for 160 units with Marlborough Communications Ltd in Surrey.