Before I got into drones I cut my teeth on filming from full size helicopters in a lot of different environments and situations. This was a case in point.

We were in Pakistan filming for Channel 4 just after their severe earthquake which was responsible for the foothills of the Himalayas in the Hindu Kush shaking the ground so hard a section 100 miles long slid down the mountain on to the land below.

Towns like Bagh in the north east and Mushaffrabad in the central part of the country suffered terrible damage and loss of life. There was no adequate way to show the extent of the damage apart from the air.

We negotiated with the army for a week and eventually stole a ride on a Chinook supply helicopter which very conveniently flew down the entire spine of the spectacular slippage. The face of the Himalayas, the biggest mountain range in the world, had fallen off.

I filmed for two hours from the waist window which was open so I could film through 90 degrees. It was one of the most amazing experiences of my life.

But just think what I could have achieved with a drone!