Benson is currently home to 28 Squadron, 78 Squadron, 33 Squadron, 230 Squadron and also to Oxford University Air Squadron and No. 6 Air Experience Flight. In January 2008, 78 Squadron was formally stood up at RAF Benson to create, alongside 28 Squadron, a Merlin Force. Also included in the Merlin Force is the Merlin Force Engineering Squadron. No 78 Sqn were previously a Sea King/Chinook Squadron based at RAF Mount Pleasant in the Falkland Islands). In November 2009, 230 Squadron with its Puma helicopters took residence here having been posted to RAF Station Aldergrove, in Northern Ireland since the early 1990s. Previous units once located there include the Queen's Flight.