Timetable of horse trials on file.
LS. Horse No.3. passing in front of Harewood House. LS. Horse No.4. passing in front of Harewood House. MS. No.7. Trident, getting ready at start. MS. No.6. Tramella at start. Miss Diana Mason mounting and starting. LS. Time-keepers...
Press watch John Cunningham test fly new jet airliner, Trident.
Prototype Trident jet airliner is brought out for its first public showing.
Special christening for new Hawker Siddeley aircraft - Trident Two.
New Trident 3b aircraft on test flight. Hatfield in Hertfordshire.
Trident II in flight showing the extreme manoeuvrability (turning over in circles).
A Trident jet airliner returns home after a sales tour of the Far East.
Trident airliner goes on its first test flight.
Trident aircraft tested at Hatfield airfield, Hertfordshire.