A6A
A6A is an alphanumeric designation used in several unrelated contexts. In military aviation, A-6A refers to the initial production variant of the Grumman A-6 Intruder, a carrier-based all-weather attack aircraft developed for the United States Navy. Entering service in the 1960s, the A-6A was designed to operate from aircraft carriers in adverse weather and battlefield conditions, carrying conventional and nuclear ordnance. It formed the baseline for later variants such as the A-6B and A-6E. A related electronic warfare variant, the EA-6A, was adapted to provide radar jamming and other EW capabilities.
Outside aviation, A6A can appear as a model or catalog code used by various manufacturers and organizations.
The use of A6A illustrates a broader practice of assigning alphanumeric codes to indicate mission, version,