The Air Ambulance had been based on the north side of Filton since 2008 but following an announcement by British Aerospace to sell the site, a new base was needed. Planning was finally approved after objections, in Dec 2016; the new base at Almondsbury, adjacent to the M4/M5 motorway interchange became operational in 2018. 
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Models Great Western Air Ambulance List of helicopters |
| C/N | Version | Built | In this Org | In other Org | |
|---|---|---|---|---|---|
| 0174 | ec135t1 | 2001 | G-GWAA : Great Western Air Ambulance (GWAAC) Oct14-2016?, pictured (pic1) |  G-WMAS G-GWAA G-WMAS  F-HBBK  OE-XXR | |
| 0746 | ec135t2+ | 2008 | G-GWAC : Great Western Air Ambulance (GWAAC) /Helimed65 by based at Almondsbury, o+ : Sep19 GWAAC pictured (pic2), op by Babcock : asg NHS for coronavirus patients transport : as HLE65 | G-WASN G-WASN G-WASN | |
| S-135/914 | 105d | G-NDAA : Great Western Air Ambulance (GWAAC) in green/blue livery | G-WMAA G-NDAA |
