When one was a cadet in the 80-90s the rumours around the squadron suggested that MIldenhall be The 117 hang out when in UK. I laughed it off then remembered the 2 disused ex SR-71 'barns' and the Lockheed Skunk Works reps and staff that be around. Plus looking at books on the 117 and the similar looking individual 'housing' at TTR, wasn't so much difference to the larger BLackbird barns.
I read in the very first Air Forces Monthly in 1987 that supposedly the 117 had been seen flying from Sculthorpe when it was still in USAFE hands.
Cheers