I may be wrong, but I am sure that the JU88 was detected on radar before the Spits got scrambled from Dyce. There was a chain home network up here too.

There were other fighter aerodromes in the area where the JU88 is more likely to have crossed the coast, or at least got near it, and they were Crimond (beside Fraserburgh) and RAF Longside (Peterhead). I’m pretty much convinced that Longside had a Czech fighter sqn at one time, whether at this time, I do not know, as I have not checked up yet. I’ve flown the route many times from the direction the JU88 would have flown, as I work on the rigs, and Dyce was by far not the nearest airfield from Norway.

Probably the Germans headed for Dyce as it was close to the nearest city….

Just playing devils adovcate, there’s no real proof from what I know of the story that it was a deception that the Brits knew about until the thing flew into the NE of Scotland…