Judy Leden has faced many dangers in her long and glittering flying career - hang-gliding from the summit of one of the world's highest active volcanoes, flying a microlight plane all the way from England to the Kingdom of Jordan, and beating the World Altitude Record by jumping from a balloon at 41,000 feet.
So how did the three times world champion hang-glider react, when asked to pilot a flying machine made entirely from one of Leonardo da Vinci's designs? Jenni Murray meets Judy to find out.