Hawker Siddeley Trident 3 aircraft, 1971.
© Science Museum / Science & Society Picture Library
The Trident 3 was built at Hatfield in Hertfordshire and first entered service in 1970. It was capable of carrying up to 180 pasengers and had a range of 1500 miles. Only 117 Tridents were built in total, 35 of them for the Chinese airline CAAC. This British Airways Trident is pictured at the Science Museum's Wroughton airfield in Wiltshire.