The underground facility at Bentwaters is an issue that comes up again and again as part of this incident.
A few questions/thoughts.
1. Due to the fact that by 1980 Bentwaters main mission was Tank Killing and had no nuke capable aircraft directly under the wing what would be the point of having this facility. It was the biggest fighter wing in the USAFE and the biggest in the USAF (I'm sure someone at Nellis would argue this point). I'm sure if there was a greater than average number of heavy secure flights (C5's etc) into the base the spotters would have put 2 and 2 together. Also CND's presence would have been greater, louder (and wierder..)
2. Where did all the dirt go? In the late 70's a lot of development occurred on the twinbases, the most noticable buildings being the Tab V (HAS) shelters. But to shift the amount of dirt needed would take some doing. Not to mention specialist tunneling equipment.
3. In the event of there being an underground facility there would have to be an inlet/outlet system for the ventilation. I have never heard of any evidence of this and there is nothing visible on the recon photos I have to suggest any major changes. Also there is no sign of any ground disturbance. This would also need a significant amount of power and would also require backup generators, which would mean fuel tanks and above ground access to them.
4. If there was a secondary mission that was covertly being carried out at Bentwaters, no one is talking about it. Face it its a dead wing, dead mission, dead base and some people do like to talk. I have posed the question to various people within the USAFHO, pilots, maintenance crew, crew chiefs, security personnel, ammo guys etc and no one knew of one.
Now I'm sure there were sealed orders for the crews of the 527th AS who were there in 88-89, but there role in times of war would have become fairly transparent pretty quickly, but at some stage the responses for all eventualities would have been practiced.
As the majority of building works carried out on the base was done by local/UK contractors I am sure that you could not keep them all quiet, especially after a few pints of beer. The plans for the buildings that I have seen were all prepared by English companies, this includes constructional and utility drawings. Also alot of the facilities were pretty generic buildings so whatever was on Bentwaters was mirrored on Woodbridge, Heyford, Alconbury, Lakenheath etc.
I dare say that I'll add more thought to this post as they come to me but feel free to comment or perhaps let a cat or two out of the bag....
V/R
Wolf