Inside London's new air ambulance helicopter
London's two new air ambulance helicopters are weeks away from entering service following a two-year fundraising drive.
The new aircraft will need less maintenance than their predecessors, which means they'll be able to attend more emergency call outs.
The helicopters cost £15m, but the fundraising will continue as while the medical staff are provided by the NHS, the helicopters and support staff are paid for through donations.
Video by Karl Mercer and Richard Milliken
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