According to Acecore CEO and pilot Jorrit Linders the weather conditions were very harsh. Temperatures of -20 degrees Celsius and very strong winds made the recordings very challenging. AceCore Technologies specializes in developing drone systems that can carry a heavy payload and fly in extreme weather conditions. Needless to say, the HBO quality requirements are high. Data must be able to be post-edited with all kinds of visual effects.
Drones, unlike expensive helicopters where flights should always be pre-planned. Drones can also fly closer to a target subject or object for the close range aerial shots. For the first time, the Games of Thrones production team used drones rather than traditional helicopters in Iceland.