Douglas TA-4J Skyhawk airplane model. The Douglas TA-4J "Skyhawk" is a two-seat, lightweight, high-performance aircraft with a modified delta wing. It was manufactured by the Douglas Aircraft Company of Long Beach, CA, and was designed as a training aircraft capable of operating from a carrier or shore base. It is powered by a Pratt &, Whitney J52 P6B. The aircraft mounts two 20mm guns internally and can carry a variety of external stores. The TA-4J is used for training and various other contract duties such as Electronic Warfare, Adversary, and Threat Simulation.