Original: Only one unit was built, no. 89001, which was officially named Avocet by the then Prime Minister Margaret Thatcher on 16 January 1989 at Sandy, Bedfordshire - the home of the Royal Society for the Protection of Birds (whose logo is an Avocet).
Simplified: Only one unit was built, no. 89001, which was officially named Avocet by the then Prime Minister Margaret Thatcher on January 16 1989 at Sandy, Bedfordshire - the home of the Royal Society for the Protection of Birds (whose logo is an avocet).