The VC10K had proved to be highly reliable and over the seven month period the squadron achieved a sortie success rate of over 99%. A total of 600 sorties (2300 hr) were flown prior to 16 January, off-loading 14000 tonnes of fuel; after 16 January 381 sorties (1350 hr) were flown with a further 6800 tonnes given away.
From my article in
RAF Yearbook special Air War in the Gulf.