I've been playing around and reprocessing a bunch of files for 'the book' using Nik's incredible plug-ins for Aperture.
This is an A-4 Skyhawk, known in the trade as a 'Scooter'. One of the most successful US Navy and Marine Corps aircraft of all time. It first flew in 1954, entered service in 1956 and didn't finally leave USN service until 2003 - an astounding 47 years in service. It flew under the flags of Argentina, Australia, Brazil, Indonesia, Israel, Kuwait, Malaysia, New Zealand and Singapore.
The aircraft below is an A-4C on display at the Flying Leatherneck Museum at MCAS Miramar, San Diego, California. It was entered into service with the US Navy in April 1961. It went to VA-192, the 'Golden Dragons' in 1971. It then went to the Marine Corps Reserve, eventually ending up at MCAS El Toro.