RAF Kinloss in Moray will close in August, STV News understands.
The airbase was deemed surplus to requirements after ministers took the decision last year to scrap the £4bn fleet of the Nimrod MRA4 planes, as part of deep defence cuts.
The government had previously pledged to do "everything it can" to soften the blow and may use Kinloss to as an Army transit base.
Armed Forces Minister Nick Harvey visited Moray on Thursday to meet civilian and RAF staff at both RAF Kinloss and Lossiemouth. He also met members of the Moray Task Force at RAF Kinloss, who will be bitterly disappointed at the news that the axe will finally fall in August.
Union leaders joined former defence chiefs in damning the decision to scrap a fleet of nine new RAF Nimrod aircraft that cost nearly £4bn to build.
Earlier this week cranes started to dismantle the planes at BAE plant at Woodford, Greater Manchester, in a demolition job reported to be costing £200m.
On a campaigner group's website Unite argues that alternatives to the Nimrods will be ineffective. "Defence of the nation has been compromised" it says. The scrapping of the MRA4s will also see hundreds of job losses.
The decision to abandon them was made during last Ocober's Government's Strategic Defence and Security Review (SDSR) which effectively signalled the closure of RAF Kinloss.
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