London Blitz Docklands 1941
A disused Thames-side warehouse was fitted with 50 liquid propane gas burners to recapture wartime bombing of London in The Battle of Britain. Special-effects expert Cliff Richardson and his son John later devised the 'Dante' fire machine.
Because ordinary flames tend to appear transparent on film, chemicals are added to enhance movie blazes.
In the early 1970s, the British special-effects expert Cliff Richardson and his son John developed the 'Dante' fire machine - a device which enabled him to produce spectacular fires that remain perfectly under control. A car engine mounted on a two-wheel carriage drives a pump through which two 50 gallon drums of fuel mixtures can be squirted. Jet primers ignite the fuel and the machine can create a 60ft (18m) wide wall of fire.