From George Dean: Here is a picture of one of the many DF Classes I had the pleasure of helping teach. It was taken in front of either Bldg 501 or 502. This is a typical size class and I think it was one of our first self-paced classes. We always had two Canadian Forces students in our classes. I'm the young 2nd Class on the left. I was the Lab Technician/Academic I did some classroom such as code tests (You had to do 25 WPM with a stick to pass the course) and also the "practical application" tests with simulated DF scenarios in our lab. The First Class on the right is Ace H. Crawford, a first rate instuctor and a great friend! I believe he has been living in Hawaii for a number of years. Wish I could remember ANY of the students names. Should have written them on the picture! We had so many people going through, I had a hard time keeping track of them at the time, let alone 28 years later!!