Keywords: Mk4 Navy Picture.jpg A U S Navy Douglas A-4A Skyhawk BuNo 137818 armed with Mk 4 HIPEG gun pods at the Naval Air Weapons Station China Lake California USA on 24 January 1964 http //www chinalakealumni org/1964 htm 1964-01-24 USN PD-USGov-Military-Navy A-4A Skyhawk Mark 4 HIPEG gun pod Naval Air Weapons Station China Lake |