The event, organised by High Access Rescue Team (HART) Ltd, saw 20 volunteers undertake the challenge in aid of Help for Heroes, the charity that supports wounded servicemen and women. They were required to climb the 45m tower crane, walk 45m along the jib and then abseil 45m back to the ground.
They completed the challenge of continuously abseiling the height of 9,120m (29,921ft) in 19 hours and 38 minutes.
Donald Ritchie, from HART, said the event was beset by torrential rain that hit at 4am, but the teams carried on to ensure they reached their cumulative target. Ritchie also said some of the personnel attempting the challenge had never abseiled before and some were scared of heights.
“It took real bravery to overcome their fear but they managed,” he said. “Some of them were almost running up the tower, even after 15 or 16 ascents.”
