A-6 losses engine

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The A-6 Intruder is an American twin jet-engine, mid-wing attack aircraft built by Grumman Aerospace. In service between 1963 and 1997, the Intruder was designed as an all-weather replacement for the piston-engined A-1 Skyraider medium attack aircraft. A specialized electronic warfare derivative, the EA-6B Prowler, remains in service as of 2007. As the A-6 was slated for retirement, its precision strike mission was taken over by the now retired F-14 Tomcat equipped with LANTIRN, which has subsequently passed on the role to the F/A-18E/F Super Hornet.
The Intruder was developed in response to a U.S. Navy specification for an all-weather carrier-based attack aircraft to serve as a replacement for the piston-powered, World War II-era A-1 Skyraider. Grumman was awarded the contract in 1957, and the resulting A2F-1 made its first flight on 19 April 1960.

The jet nozzles were originally designed to swivel downwards, but this was dropped from production aircraft. The pilot sits in the left seat, while the bombardier/ navigator sits to the right and below. A unique CRT gives a synthetic display of terrain ahead which, with the additional crew member, enabled low-level flying in all weather conditions.
YA2F-1 showing the original tilting tailpipes
YA2F-1 showing the original tilting tailpipes

The wing is very efficient at subsonic speeds compared to supersonic fighters such as the F-4 Phantom II, which are also limited to subsonic speeds when carrying a payload of bombs. A very similar wing would be put on pivots on Grumman's later supersonic swing-wing F-14 Tomcat, as well as similar landing gear.The Intruder was also equipped with the "Deceleron", a type of airbrake on the wings with two panels that open in opposite directions, in this case, one panel goes up, another goes down.
The initial version of the Intruder was built around the complex and advanced DIANE (Digital Integrated Attack/Navigation Equipment), intended to provide a high degree of bombing accuracy even at night and in poor weather. DIANE consisted of multiple radar systems: the Norden AN/APQ-92 search radar and a separate AN/APQ-112 for tracking, AN/APN-141 radar altimeter, and AN/APN-153 Doppler to provide position updates to the AN/ASN-31 inertial navigation system. An air-data computer and ballistics computer integrated the radar information for the bombardier/navigator (BN) in the right-hand seat. TACAN and ADF were also provided for navigational use. When it worked, DIANE was perhaps the most capable nav/attack system of its era, giving the Intruder the ability to fly and fight in even very poor conditions (particularly important over Vietnam and Thailand during the Vietnam War). It suffered numerous teething problems, though, and it was several years before its reliability was established.

Total A-6A production was 488, including six pre-production prototypes. Many of the surviving aircraft were converted to other variants.