Altitude Angel powers access to UK skies as Airspace User Portal goes live

London, UK: Altitude Angel's GuardianUTM O/S platform, which is emerging as the world's most comprehensive solution for enabling drones to be integrated safely into the sky, has today been enabled at six airports in the UK - including one of Europe's busiest, London's Heathrow Airport. The product powers NATS' Airspace User Portal (AUP), which will ["]