Grumman A-6A Intruder
The A-6 Intruder was designed to serve two roles: one, to replace the aging A-1 Skyraider and supplement the A-4 Skyhawk in the carrier-based strike role, and two, to give the US Navy a genuine all-weather strike aircraft. The requirement was issued in 1957, and Grumman’s A2F-1 design selected, with the first flight in 1960. In 1962, just before fleet entry in 1963, the Intruder was redesignated A-6A.
The A-6 was designed to hit targets with pinpoint accuracy in adverse weather, day or night, similar to what the USAF would later require for the F-111 Aardvark. For this reason, it was built around the Digital Integrated Attack/Navigation Equipment (DIANE), which used three radar systems to constantly update the INS and provide attack data to the bombardier/navigator sitting in the right seat. The system proved very complicated and it would be some years before it was perfected. Since the weather and night would be the Intruder’s primary defense, no internal armament equipped the aircraft, though it could carry an impressive 18,000 pound warload.
The Intruder was committed early to the Vietnam War, which showed up the flaws in the DIANE system and a more lethal one in the bomb delivery system, which had a tendency to set off the bombs prematurely, destroying the aircraft. Gradually improvements were made, and despite the loss of 84 Intruders over Vietnam, it proved to be extremely effective: until the bugs were ironed out of the F-111A in 1971, the A-6 remained the only American aircraft that could attack during the monsoon season.
Specialized A-6Bs were also produced specifically for Iron Hand defense suppression missions, and A-6Cs for anti-truck operations on the Ho Chi Minh Trail. All three variants were replaced by the A-6E beginning in 1971: this replaced DIANE with a more advanced solid-state computer and the three radars with a single AN/APQ-148 multimode radar. In 1979, the A-6E was further modified with the installation of Target Recognition Attack Multisensor (TRAM), consisting of a turret in the nose containing FLIR linked to the radar and a new bomb computer. Besides making the already accurate A-6 even more deadly, it also allowed the Intruder to drop laser-guided bombs, hit moving targets with bombs, and also use passive radar to attack a target.
A-6s would find themselves once more heavily employed during the First Gulf War, flying 4700 sorties for the loss of four aircraft; its final roles would find it supporting Marines in Somalia in 1991 and UN forces in Bosnia in 1995. By that time, surviving A-6Es had been partially upgraded to allow them to fire all newer guided weapons in the inventory (namely the AGM-84 Harpoon, AGM-65 Maverick, and AGM-88 HARM), while most of the fleet also received composite wings.
Grumman further proposed an updated version designated A-6F, with new avionics and engines, but the US Navy rejected this in favor of replacing the Intruder with first the cancelled stealthy A-12A Avenger II, then the F/A-18C/D Hornet. The last A-6E left US Navy service by Feburary 1997; the US Marine Corps had retired theirs in 1993. Older, non-modified aircraft were sunk as an artificial reef off Florida; others remain at AMARC for scrapping.
A-6A BuNo 154147 was delivered to VA-128 ("Golden Intruders") at NAS Whidbey Island, Washington in 1968. It was not there long before it joined the fleet, going to VA-196 ("Main Battery") aboard the USS Constellation (CV-64), seeing combat over Vietnam. In 1971, it was transferred to VA-176 ("Thunderbolts") in the Atlantic, aboard USS Franklin D. Roosevelt (CV-42). By 1977, like many of the early A-model Intruders, 154147 was converted to a KA-6D, and would serve with VA-115 ("Eagles"), VA-95 ("Green Lizards"), VA-52 ("Knight Riders"), and finally VA-34 ("Blue Blasters"). On this last cruise, 154147 supported Navy flights from the USS Dwight Eisenhower (CVN-69) during Operation Desert Shield. It was retired in 1992 and scrapped sometime thereafter.
This shot of 154147 shows it with VA-196, probably soon after returning from Vietnam. As an A-6A, it retains the early fuselage speedbrakes and black nose. VA-196 is one of the more famous Intruder squadrons, as it was the squadron Stephen Coonts--later author of "Flight of the Intruder"--was assigned to during his Vietnam tour of duty. Given the F-102 behind 154147, this was possibly taken at an airshow.
(Disclaimer: I found this picture among other photos in my dad’s slides. I’m not sure who took them; some of them may be his. If any of these pictures are yours or you know who took them, let me know and I will remove them from Flickr, unless I have permission to let them remain. These photos are historical artifacts, in many cases of aircraft long since gone to the scrapyard, so I feel they deserve to be shared to the public at large—to honor the men and women who flew and maintained them.)
Grumman A-6A Intruder
The A-6 Intruder was designed to serve two roles: one, to replace the aging A-1 Skyraider and supplement the A-4 Skyhawk in the carrier-based strike role, and two, to give the US Navy a genuine all-weather strike aircraft. The requirement was issued in 1957, and Grumman’s A2F-1 design selected, with the first flight in 1960. In 1962, just before fleet entry in 1963, the Intruder was redesignated A-6A.
The A-6 was designed to hit targets with pinpoint accuracy in adverse weather, day or night, similar to what the USAF would later require for the F-111 Aardvark. For this reason, it was built around the Digital Integrated Attack/Navigation Equipment (DIANE), which used three radar systems to constantly update the INS and provide attack data to the bombardier/navigator sitting in the right seat. The system proved very complicated and it would be some years before it was perfected. Since the weather and night would be the Intruder’s primary defense, no internal armament equipped the aircraft, though it could carry an impressive 18,000 pound warload.
The Intruder was committed early to the Vietnam War, which showed up the flaws in the DIANE system and a more lethal one in the bomb delivery system, which had a tendency to set off the bombs prematurely, destroying the aircraft. Gradually improvements were made, and despite the loss of 84 Intruders over Vietnam, it proved to be extremely effective: until the bugs were ironed out of the F-111A in 1971, the A-6 remained the only American aircraft that could attack during the monsoon season.
Specialized A-6Bs were also produced specifically for Iron Hand defense suppression missions, and A-6Cs for anti-truck operations on the Ho Chi Minh Trail. All three variants were replaced by the A-6E beginning in 1971: this replaced DIANE with a more advanced solid-state computer and the three radars with a single AN/APQ-148 multimode radar. In 1979, the A-6E was further modified with the installation of Target Recognition Attack Multisensor (TRAM), consisting of a turret in the nose containing FLIR linked to the radar and a new bomb computer. Besides making the already accurate A-6 even more deadly, it also allowed the Intruder to drop laser-guided bombs, hit moving targets with bombs, and also use passive radar to attack a target.
A-6s would find themselves once more heavily employed during the First Gulf War, flying 4700 sorties for the loss of four aircraft; its final roles would find it supporting Marines in Somalia in 1991 and UN forces in Bosnia in 1995. By that time, surviving A-6Es had been partially upgraded to allow them to fire all newer guided weapons in the inventory (namely the AGM-84 Harpoon, AGM-65 Maverick, and AGM-88 HARM), while most of the fleet also received composite wings.
Grumman further proposed an updated version designated A-6F, with new avionics and engines, but the US Navy rejected this in favor of replacing the Intruder with first the cancelled stealthy A-12A Avenger II, then the F/A-18C/D Hornet. The last A-6E left US Navy service by Feburary 1997; the US Marine Corps had retired theirs in 1993. Older, non-modified aircraft were sunk as an artificial reef off Florida; others remain at AMARC for scrapping.
A-6A BuNo 154147 was delivered to VA-128 ("Golden Intruders") at NAS Whidbey Island, Washington in 1968. It was not there long before it joined the fleet, going to VA-196 ("Main Battery") aboard the USS Constellation (CV-64), seeing combat over Vietnam. In 1971, it was transferred to VA-176 ("Thunderbolts") in the Atlantic, aboard USS Franklin D. Roosevelt (CV-42). By 1977, like many of the early A-model Intruders, 154147 was converted to a KA-6D, and would serve with VA-115 ("Eagles"), VA-95 ("Green Lizards"), VA-52 ("Knight Riders"), and finally VA-34 ("Blue Blasters"). On this last cruise, 154147 supported Navy flights from the USS Dwight Eisenhower (CVN-69) during Operation Desert Shield. It was retired in 1992 and scrapped sometime thereafter.
This shot of 154147 shows it with VA-196, probably soon after returning from Vietnam. As an A-6A, it retains the early fuselage speedbrakes and black nose. VA-196 is one of the more famous Intruder squadrons, as it was the squadron Stephen Coonts--later author of "Flight of the Intruder"--was assigned to during his Vietnam tour of duty. Given the F-102 behind 154147, this was possibly taken at an airshow.
(Disclaimer: I found this picture among other photos in my dad’s slides. I’m not sure who took them; some of them may be his. If any of these pictures are yours or you know who took them, let me know and I will remove them from Flickr, unless I have permission to let them remain. These photos are historical artifacts, in many cases of aircraft long since gone to the scrapyard, so I feel they deserve to be shared to the public at large—to honor the men and women who flew and maintained them.)