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The high speed train was to be the forerunner of the 155 mph supertrain, the Advanced Passenger Train, which was expected to in operation by 1980.
Visitors can also climb aboard the Class 503 and see the power car for the record-breaking Advanced Passenger Train Prototype (APT-P) on loan from the National Railway Museum.
For 10 years, from 1970,1 worked for British Rail (BR) on the advanced passenger train at the Railway Technical Centre in Derby.
If it does, the train, with more than 400 passengers on board, will beat the four hours 14 minutes record set by British Rail's ill-fated tilting Advanced Passenger Train in the early 1980s.
The original British and sadly rejected Advanced Passenger Train, APT-E, will be there.
Eurostar bosses were delighted to smash the 24-year-old record set by British Rail's ill-fated tilting Advanced Passenger Train.
But the Advanced Passenger Train was the 60s invention which was going to put the Great back into Britain.
The engine, known as the Advanced Passenger Train, which was launched in 1981, will arrive on site later this year.