Speaking outside the court martial, Sergeant Danny Nightingale has apologised to taxpayers for footing his ongoing legal battles.
He said that his own part in covering legal bills had been "financially debilitating".
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Mayor of London Sadiq Khan is backing the scheme.
Sunday will be a fine day across much of Scotland and northern England, with much less coastal mist and low cloud than yesterday.
A spokesperson said the lightning strikes had left the "aircraft fuelling system unavailable."