Chain Home: The Radar That Helped Win the Battle of Britain
It is just after eleven in the morning on the twelfth of August, 1940, and Junkers dive bombers are peeling off toward the radar towers above Ventnor on the Isle of Wight. Within minutes the station goes dark, and engineers begin a race to hide the gap from an enemy still listening from across the Channel.
This episode matters because Chain Home succeeded through the disciplined organisation built around it: the filter room, the sector stations and the people reading blips off a screen, turning a distant contact into a scrambled squadron fast enough to make a difference over southern England in 1940.
In this episode:
- How a 1935 field trial near Daventry, using a borrowed transmitter and a bomber flying set courses, proved that radio waves could detect aircraft in flight
- The building of Bawdsey Manor’s radar towers and the growth of the Chain Home network along Britain’s coast by 1940
- How the Dowding System turned a radar contact into orders relayed through Fighter Command’s Groups and sector stations to scrambled squadrons within minutes
- The Luftwaffe’s coordinated attack on five radar stations on 12 August 1940, and why the network survived its heaviest test of the battle
Listen if you’re interested in:
- The Battle of Britain and Fighter Command’s air defence system
- The history of radar and its role in the Second World War
- The RAF’s command and control structure during 1940
- How organisation and process, as much as technology, decided the outcome of a battle
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