Jeff Wilson / Rear view of pilots and Trango towers in the Karakoram Mountains, Himalayas, Pakistan, from Pakistani military helicopter, for BBC series Planet Earth. April 2005

Hugh Pearson / Aerial of Mount Namuli taken from within helicopter, Mount Namuli, Mozambique, May 2011.

Ingo Arndt / Food and Agriculture Organization (FAO) helicopter pilot Eric Gadot, an expert at locust control operations flying over effected area, near Miandrivazo, Madagascar. December 2013.

Ingo Arndt / Helicopter Pilot Peter Garden from behind with his helicopter, South Georgia Heritage Trust Rat Eradication Project, Grytviken, South Georgia, March 2011

Pete Oxford / Helicopter pilot flying over Elephant (Loxodonta africana) herd. The Elephants were about to be darted for relocation to the reserve they had escaped from. Zimbabwe, November 2013.

Pete Oxford / Helicopter pilot flying over Elephant (Loxodonta africana) herd. The Elephants were about to be darted for relocation to the reserve they had escaped from. Zimbabwe, November 2013.

Tim Laman / Anand Varma (left) and photographerTim Laman aboard a helicopter flying west of Yasuni National Park, Francisco de Orellana Province, Ecuador, July.

Martha Holmes / Interior of Royal Navy helicopter showing pilots. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Pilot Mike Watson refuelling helicopter (mounted with Cineflex camera) from drum. Amboseli, Kenya. December 2007. Taken on location for BBC tv series 'Life'

Merryn Thomas / Royal Navy helicopter flying over Cornish Pilot Gig off Town Beach, St. Mary's, Isles of Scilly. World Pilot Gig Championships, May 2009.

Rick Tomlinson / View from helicopter cockpit at the start of leg one of the 10th Volvo Ocean Race, Alicante, Spain, October 2008. For EDITORIAL USE only.

Adam White / Gig crews rowing out to towards the start line near Tresco for the next heat of the 19th World Pilot Gig Championships, Isles of Scilly, May 2008