While driving between Congleton and Macclesfield c. 221700ZJUL2020 I saw a single RAFAT Hawk on a reciprocal heading out of my passenger window - low enough to make out the union flag design. He/she appeared to wing waggle presumably to someone on the ground. Seemed a strange place for it to be - not that far from the edge of Manchester CTR Class D airspace, roughly in the former Woodford entry/exit lane.