I was able to find the Alphasim/Virtavia A-3 Skywarrior free and even more exciting is I was able to convert the model which because it is a native FSX had the interior model as well to Prepar3D V4.5 and not lose any animation or the virtual cockpit. It has a beautiful, authentic 2D panel as well. It came with four textures and is very frame-rate friendly. In looking for photos I came across all kinds of information including the NATOPS manual. I decided NOT to fly the A-3B bomber version...
