[4] The charity previously had a rapid response car that was donated in May 2009 by Sussex Police, having formerly been one of their traffic patrol vehicles.

[7][2] In the year ending March 2023, the charity raised income of £18.1 million, including £1.9M from government contracts.

[8] KSS, an expansion of the existing Kent Air Ambulance service, went into operation in 2007,[3] covering the two counties of Sussex and Surrey.

[9] On 30 October 2015, it was announced that the charity would invest £10M in relocating its flying base near Paddock Wood.

The trust was founded by Kate Chivers,[11][3] and was originally called the South East Thames Air Ambulance.

[13][3] It operated one McDonnell Douglas MD 902 Explorer helicopter, registration G-KAAT, from its headquarters in Marden.