The heat is on for a pilot and a doctor about to embark on a gruelling six day multi-marathon mission in the deserts of Jordan.

In a bid to raise �10,000 for Whitechapel-based London’s Air Ambulance, Captain Neil Jeffers and Dr Tom Konig will attempt to run eight marathons through the Wadi Rum desert – which records average temperatures of 32 degrees.

The workmates are hoping their military backgrounds will help them get through a challenge that few could endure.

Captain Jeffers, part of a pool of pilots who work from The Royal London Hospital base, said it always shocks him how little people know about LAA and that it is a charity.

He added: “Tom and I consider ourselves relatively fit but this challenge is a massive one.”

Dr Konig described LAA as a “world leader in trauma care”.

The pair will join fifty others for the feat which kicks off on September 3.

Over six days they will cover 200 miles before finishing in the ancient city of Petra.

Go to www.laajordanultra.com to donate.