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Surprisingly fast. The minimum speed for most gliders is about 40kts (about 74 km/hr). The maximum speed depends on the model but modern gliders designs can fly at 146kts (about 270 km/hr). Average cross country speed attained depends on the soaring conditions – i.e. the weather. The world record for a 300 km flight is 225 km/hr and the UK record is 127km/hr..
