A 56-year-old world record hang-glider pilot has been killed while attempting another flying achievement in Colorado.
Geoffrey Loyns was a record-holding hang glider pilot
Geoffrey Loyns, originally from Rumney in Cardiff but based in the US since 1980, died at the weekend.
His daughter Martine said her father was trying to break a record in a motorised glider but it was thought he had died from a heart attack.
She said flying was his passion and he had been featured in the record books. "He loved it so much," she said.
Ms Loyns, 33, from Penarth, Vale of Glamorgan, the mother of a 11-year-old daughter Kimberley, said her father had originally lived in San Francisco when he emigrated to the US 27 years ago.
But he moved to a quiet valley in Colorado "because he didn't like all the traffic" about seven years ago.
He was trying to set a new record in a motorised glider
She said her father, a pattern-maker in furniture who has a workshop in his home, was in the Guinness Book of Records for his achievement in hang gliding but had a half share in a motorised glider and was trying to set a record flying that.
"Every weekend he would phone me saying he had nearly got there - he was mad about flying," she said.
Ms Loyns had visited her father in the US six times. He would return to Wales often at Christmas and had planned to retire in this country.
"I went with him once in his glider. It was like a white knuckle ride. I've never been again," she said.
Ms Loyns, her father's only child, will fly to the US to make the funeral arrangements. Her father's sister from Maesycwmmer, near Caerphilly, will travel with her.