They've been credited with increasing the chances of surviving a serious injury by up to 20 percent.
But charities like the East Anglian Air Ambulance and Essex and Herts Air Ambulance receive no government funding, and rely entirely on donations to keep going.
Jonathan Wills and Elodie Harper spoke to Diana Jakubowska from the East Anglian Air Ambulance about how they manage to fund their work and keep flying.
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Union officials are holding talks with administrators in an effort to save thousands of jobs following the collapse of City Link.
Ipswich Town manager Mick McCarthy says that it would take a "bonkers" offer for his club to consider selling striker Daryl Murphy.
A cold day with strong, northerly winds continuing to bring rain, sleet or snow showers across many parts, especially eastern counties.