I concur with everything everyone has said about Al. He was a great educator, mentor, friend and gentleman. I had the pleasure and honor not only to have studied under him but worked closely along side him for more than a decade when he was consulting with the company where I was employed. He definitely had a positive influence on me and the other engineers who had the privilege of interfacing with him. My wife and I have many fond memories of having Pat and Al over to our home for social functions. He will be sadly missed but not forgotten.
All the best,
Kean Khoon Ooi