Increasing numbers of hobbyists are flying drones in British skies. And increasing numbers are risking collisions with commercial aircrafts.

To tackle the issues, the UK Civil Aviation Authority (CAA) has today released a drone awareness initiative dubbed the "dronecode" together with air traffic control company NATS, and the pilot's union BALPA. The code lays down the basic guidelines for flying drones safely in UK airspace, and aims to help users stay out of trouble.

"It is imperative that people observe the rules when operating a drone. Drone users must understand that when taking to the skies they are entering one of the busiest areas of airspace in the world—a complex system that brings together all manner of aircraft including passenger aeroplanes, military jets, helicopters, gliders, light aircraft and now drones," said Tim Johnson, CAA Director of Policy, in a press statement.

The tips are straightforward, with the "dronecode" urging users to keep drones away from airports, aircrafts and airfields; to keep them in sight and at a maximum height of 400ft; and to use their common sense—otherwise face prosecution, hefty fines, or jail time.