The Big Dipper was an old timber roller coaster at Battersea, and was the main attraction. Made from timber, it offered plenty of thrills for its riders. However, being timber also means that it is prone to faster deterioration than modern steel roller coasters, and constant maintenance is a must.
In May 1972 a deadly chain of events unfolded that would claim the lives of 5 children. As the train was approaching the top of the launch hill the rope that dragged it up snapped sending it back down the hill backwards. The anti-rollback mechanism should have kicked in, but failed. The train continued to roll backwards past the boarding area and crashed into a wall killing five children and injuring another thirteen.
2 Eco-Adventure Valley Space Journey – Overseas Chinese Town East – Shenzhen, China. June 29, 2010 – 6 Dead
The Eco-Adventure Valley Space Journey was a rocket launch simulator. It was a series of cars that spun around a centrifuge while displaying videos about space.
During the ride one of the rockets, with 44 people inside, came loose and lost power. It bounced around the chamber and started an electrical fire before falling 35 feet. Six of the occupants will killed from the impact of the five ton rocket,five more criticall injured and a further five sustaining serious injuries. Nearly all of the occupants who were taken to hospital were unconscious when they arrived.