Wessex SAS
John, I have been watching your posts so I will supply some of the answers.
The SAS fitted to the Wessex 60 Series 1 was a Ferranti Type FAS-2W embodied to modification ATL/GEN/004.
To show what an anarak I am it consisted of 3 Gyro amplifiers P/n 64-55530 or FAS-A2-W. A control unit P/n 74-80-025. An Adaptor unit P/n 64-55490 or FAS-TI-W and three normal Servo motors WB5-73-2903.
Please keep the pictures coming.
Its reliability was quite good after we learnt the lessons from G-ATCA's crash at Swansea Airport (9 Sept 1972) except for a onerous check every seven days.
Dave Gash.