One of the most surreal experiences of my life happened while I was stationed at an Air Force base that was the home of B52s and KC135s. I was accompanying the Nav Aids guys to assist with PMs on the Glide Slope. That morning was so foggy that visibility was reduced to under 10 feet. The Air Base was holding a MITO (Minimum Interval Take Off) exercise. We were right at the end of the runway. That means that as the planes took off, they were right over us. Because of the fog we couldn't see them at all, but we could hear them mightily. The fog was affecting the sound. But what was so strange was that it was like we could "feel" the immense size and weight of each bird as it passed overhead within our bodies. Almost as if gravity lessened a bit.