OK, it's not hot, and it's not high, but it certainly is dusty
Just watched a Merlin from the secret Oxon heli-base do the power-line limbo between Ch****y and As** Ti*****.
Expect you'll get a bill from the farmer wanting some of his soil back - looks like quite a bit got airborne in the dust cloud that was created.
Next time don't spend so long in the hover - you were going up and down like a slow but purposeful yo-yo