The GNS originally started as a simulator for just guidance and navigation, but was later upgraded to a full fixed-base simulator. The 1986 Rogers Commission Report records the following testimony on page 2510 as an early reference to the name: "Some other things that we needed and we are stepping out on this now is a guidance and navigation trainer. Right now if we want to teach a pilot, a commander flight techniques or teach him how to do the nav, we have to tie up the whole base to do that, and we shouldn't do that. We should have a part-task trainer. And we've been trying to get one of those for a long time. It looks like right now that we may very well be able to do that. We have got the thing rolling." (italics added for emphasis) [1]
