@Robin
the less reliable GPS source (in those days )
Could you expand on this for my education?
@Brian
A follow up question arising from the Racal report, kindly supplied by tucumseh. I had not appreciated that the GPS unit was a separate box from the Supertans. Was it ever examined to see what, if any, internal data it held separate from that fed into the Supertans memory?
I ask this because even quite early, admittedly self contained, GPS units maintained track logs and data to help with re-initialisation. Presumably Trimble would have to have been involved.
EG