I clearly remember seeing the first 748 departing Staverton after having some work performed by Smiths Instruments, I think it was on delivery to STN. Upon arrival at the Smiths hangar I found the second 748 in work. I was about 8 years old, my Fathers was an engineer at Smiths.
In 1970 we moved as a family to Essex when my Father took a job at CAAFU, I remember lots of Doves and the President in the hangar.
In the 80's whilst working for ATEL at STN I spent some time on secondment to CAAFU, there was 1 Dove left, a 125, Navajo and the 2 748's.