I looked up this designation, and it coincided nicely with an earlier discussion on this thread that bothered me. I had always assumed that carrier-based pilots would practice traps somewhere before going to an actual ship, but apparently they just Field Qual instead. So was AVT-16 used to practice landings with wires, or was it basically the same as the current Outlying Fields? Why was this practice stopped (money and lack of surplus WWII CVs in good shape would be my guesses)?
The CQ phase of training (in both the training command and the RAGs) involves FCLPs at a field (sometimes "Outlying" sometimes not) and then Qual on a carrier. There are no traps involved in the field qual process, only flying the pattern and then flying the ball to a touch and go (or waveoff!) to a painted carrier box on a regular runway.
Lexington was obviously an active duty carrier during WWII, replacing her namesake who was sunk in the Battle of Coral Sea.
She served as the training carrier from 1962 until decommed in 1991. I CQ'd on her in 1988 in T-2's.