The south tower was dismantled in March 2010, as a result, only two remain.
The Swingate towers no longer have the three cantilever platforms that were fitted originally.
Subsequently the north mast was demolished and replaced with a similar tower with a different bracing design.
During the Cold War the towers sprouted four transmitters at their base which were popularly assumed to be part of the US ACE High communication system but were more likely an RAF link to Germany.
[1] Several of the microwave dishes located on one of the towers provide connections via a chain of towers between the NYSE Euronext datacentres in Basildon and Slough, and Frankfurt for use in High Frequency Trading The transmitter is the main transmission station for the BBC which serves the bulk of Kent.