You know it's funny, I talked to Brit fitter once upon a time about flying in the desert, he was on a recovery team for downed A/C and he made the claim that when the engines were dismantled that all the sand did was polish them now this was about Venoms or Vamps or Hawker Hunters I don't remember, maybe the more modern Gas Turbines are different but he said the ones he worked on went better in the dust they picked up speed from the ones in the UK, so I wonder.
Bill the demon.