On 4 March 1959 VF-81 was reequipped with the A4D-2 Skyhawk and redesignated attack squadron VA-81 on 1 July 1959 . On 4 March 1959 VF-81 was reequipped with the A4D-2 Skyhawk and redesignated attack squadron VA-81 on 1 July 1959 .