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Grumman EF-111A Raven

Grumman · Airborne Electronic Attack / Jamming / Airborne Electronic Attack (Stand-Off / Escort Jamming) · USA · Cold War (1970–1991)

Grumman EF-111A Raven — Airborne Electronic Attack / Jamming / Airborne Electronic Attack (Stand-Off / Escort Jamming)
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The Grumman EF-111A Raven, known to its crews as the 'Spark Vark', was an American twin-engine, two-seat theatre electronic-warfare aircraft developed by Grumman from the General Dynamics F-111A Aardvark strike platform. Entering U.S. Air Force service in 1981, the Raven served as the principal USAF theatre EW asset for nearly two decades — escorting strike packages with onboard jammers, suppressing enemy air-defence radars, and providing stand-off jamming. Retirement came in 1998 under a controversial USAF decision to drop dedicated EW aircraft in favour of integrated jamming pods on the F-15E and F-16CJ, backed by U.S. Navy and U.S. Marine Corps EA-6B Prowler support at the theatre level.

The airframe inherited the F-111A's swing-wing layout and side-by-side cockpit. Length runs to 73 ft (22.4 m), with wingspan from 32 ft (9.7 m) swept to 63 ft (19.2 m) fully extended. Empty weight was 55,275 lb and maximum take-off weight 88,948 lb. Power came from two Pratt & Whitney TF30-P-9 turbofans rated at 12,300 lbf dry and 18,500 lbf with afterburner. EW-specific features included the dorsal 'canoe' fairing housing the AN/ALQ-99E electronic-warfare suite, the ventral 'football' fairing for receiver antennas, and a reworked cockpit for the pilot and electronic-warfare officer. Top speed reached Mach 2.2 at altitude, combat radius around 700 nmi for a typical escort mission, and service ceiling 45,000 ft. The Raven carried no air-to-air weapons, depending on speed, low-level flight, and its own jamming for survival.

EW escort was the Raven's central job — accompanying USAF strike packages and jamming hostile radars. The AN/ALQ-99E was a USAF derivative of the EA-6B Prowler's AN/ALQ-99, reconfigured for land-based theatre use rather than carrier operations. Up to nine jamming systems could run simultaneously, giving wide-bandwidth coverage against enemy radar threats. Operating from forward land bases freed the Raven from carrier-deck constraints, an important advantage for USAF theatre-level missions.

From 1981 to 1998 the EF-111A saw heavy U.S. service. It flew in Operation El Dorado Canyon (Libya, 1986), screening F-111F strikes against Libyan targets. During Operation Desert Storm in 1991 around 24 Ravens flew thousands of sorties protecting U.S. and coalition strike packages — and recorded the type's only known air-to-air kill, when an Iraqi Mirage F1 chasing an EF-111A's defensive manoeuvres flew into the ground. The fleet also supported Operation Allied Force in 1999, after the Raven's official retirement. Some 42 EF-111As were converted from F-111A airframes, with the conversion line closing in 1985. Final retirement came in April 1998 with the 429th Electronic Combat Squadron at Cannon AFB, New Mexico — leaving the United States dependent on Navy and Marine Corps EA-6Bs for theatre-level EW for the next 21 years.

For Kids — a shorter, friendlier version

The Grumman EF-111A Raven was an American electronic warfare jet built from the F-111 Aardvark. Pilots nicknamed it the Spark Vark because the F-111 was already called the Aardvark. The Raven first flew in 1977 and entered service in 1981. It had a job no other Air Force jet did: jamming enemy radars to protect strike planes.

The EF-111A is 73 feet long with swing wings, longer than a school bus. Two Pratt and Whitney TF30 jet engines push it to Mach 2, faster than a rifle bullet. The plane has no guns or missiles. Instead, it carries the AN/ALQ-99E jammer system, hidden in a big bump on top of the body called the canoe fairing.

The Raven flew in front of American strike planes to jam enemy radars. Without working radars, enemy missiles and guns could not aim well. The Raven could run up to 9 jammers at the same time, covering many radar bands. Two crew sit side by side: a pilot and an electronic warfare officer.

About 42 EF-111A Ravens were built. The Raven flew in the 1986 raid on Libya and in the 1991 Gulf War, helping bomb Iraq's air defenses. The Air Force retired the Raven in 1998, hoping that new F-15E and F-16CJ jets could do the same job alongside Navy EA-6B Prowlers. Many pilots felt the Raven was retired too early.

Fun Facts

  • The EF-111A was nicknamed Spark Vark, since the F-111 was already called the Aardvark.
  • Top speed is Mach 2, faster than a rifle bullet.
  • The Raven is 73 feet long with swing wings, longer than a school bus.
  • The Raven carried no missiles or guns; it used jamming to protect itself.
  • The AN/ALQ-99E jammer could run 9 jamming systems at once.
  • About 42 EF-111A Ravens were built.
  • The Raven flew in the 1986 Libya raid and the 1991 Gulf War.

Kids’ Questions

Why no missiles?

The Raven was made for one job: jamming enemy radars. Adding missiles would make it heavier, slower, and more complex. The Raven used its high speed and low-level flight to stay safe, plus its own jamming gear to confuse enemy missiles. Fighter jets like the F-15 flew nearby to protect the Raven when needed.

What is the canoe?

The canoe is a big bump on top of the Raven's body, shaped like an upside-down canoe. It holds the AN/ALQ-99E jammer antennas and electronics. The jammer sends out powerful radio signals that confuse enemy radars, making it hard for them to find American planes. The Navy EA-6B Prowler used a similar jammer.

Why was it retired?

In 1998, the Air Force decided to drop dedicated jamming planes. Newer F-15E and F-16CJ jets could carry small jammers, and the Navy EA-6B Prowler covered theater-wide missions. Many pilots felt this was a mistake. The Air Force now uses the new EA-37B Compass Call, returning to the dedicated jamming idea the Raven pioneered.

Variants

EF-111A Raven (initial)
Original 1981 production batch with the AN/ALQ-99E electronic-warfare system. Around 24 delivered. Service entry came with the 388th Tactical Fighter Wing at Mountain Home AFB, Idaho. Initial in-service status declared 1983.
EF-111A Block 5 (mid-life)
Mid-life upgrade from 1986 fitting the Block 4 / Block 5 generation of AN/ALQ-99E. Around 18 delivered. Formed the backbone of USAF EW coverage through Desert Storm and into the 1990s.
EF-111A System Improvement Program (SIP, 1991)
Upgrade programme launched in 1991 fitting improved cockpit displays and a refreshed threat library among other changes. Around 30 EF-111As reached SIP standard before the 1998 retirement decision halted further work.
F-111A Aardvark (predecessor)
Original F-111A strike aircraft from which the EF-111A was converted. Service entry 1967. Used in the Vietnam War and later operations. The F-111 was one of the most controversial U.S. aircraft programmes — a multi-service, multi-role design that ultimately served only with the U.S. Air Force after the Navy variant was cancelled. Spawned F-111A, F-111E, F-111F, and FB-111 variants. All retired by 1998.
EF-111B (proposed U.S. Navy variant)
Proposed U.S. Navy version of the EF-111A — never built. The Navy stayed with the EA-6B Prowler. Listed for context as a marker of inter-service competition over EW doctrine in the 1970s and 1980s.

Notable Operators

U.S. Air Force (former)
Sole operator. Around 42 EF-111As flew with the U.S. Air Force. Operating units: 388th Tactical Fighter Wing (Mountain Home AFB, Idaho, 1981-1992), 366th Wing after consolidation, and 27th Fighter Wing (Cannon AFB, New Mexico, 1992-1998). Combat deployments covered Operation El Dorado Canyon (Libya, 1986), Operation Desert Storm (1991), Operation Northern Watch and Southern Watch (Iraq no-fly zone enforcement, 1992-1998), and Operation Deliberate Force (Bosnia, 1995). Final retirement: April 1998 at Cannon AFB.
Mothball storage / preservation
After 1998 retirement, surviving EF-111A airframes went into AMARG storage at Davis-Monthan AFB — 'the Boneyard'. Around 6 are preserved at U.S. aviation museums, most prominently the National Museum of the U.S. Air Force (Wright-Patterson AFB, Dayton, Ohio), the USAF Armament Museum (Eglin AFB, Florida), Hill Aerospace Museum (Hill AFB, Utah), and several other locations.
Foreign / export
None. The EF-111A was never exported. The U.K. Royal Air Force ordered the F-111K (cancelled before production), and the Royal Australian Air Force flew the F-111C in the strike role from 1973 to 2010, but never in EW configuration. The Raven's theatre EW mission remained uniquely USAF.
Test / development
USAF test community at Edwards AFB, California, and Eglin AFB, Florida, ran 3-4 EF-111As for development testing through the 1990s. Test programmes included AN/ALQ-99E upgrades, threat library work, and other EW technology development.

Frequently Asked Questions

Why is the EF-111A called 'Spark Vark'?

USAF aircrew coined the name by combining 'Spark' — the EW community's slang for electromagnetic-spectrum activity — with 'Vark', a contraction of 'Aardvark', the F-111's official USAF nickname. The original F-111 earned 'Aardvark' for its long forward fuselage and prominent radome, recalling the African aardvark. 'Spark Vark' captured both the airframe lineage and the EW mission. The official designation was simply 'Raven', a name aircrew rarely used.

How did the EF-111A compare to the EA-6B Prowler?

Different services and operating concepts, similar EW role. The EF-111A served the USAF with two crew (pilot plus EWO), Mach 2.2 top speed, swing wings, 700 nmi combat radius, and no weapons. The EA-6B served the U.S. Navy and Marine Corps with four crew (pilot plus three ECMOs), Mach 0.86 top speed, fixed wings, 850 nmi combat radius, and AGM-88 HARM in late service. The Raven's higher speed and combat radius suited USAF theatre operations; the Prowler's larger crew and HARM integration suited carrier-air-wing work. Both used AN/ALQ-99-derived jammers tailored to their service.

Why was the EF-111A retired?

The 1998 USAF decision phased out dedicated EW aircraft on the argument that integrated EW pods on the F-15E Strike Eagle and F-16CJ Wild Weasel — combined with available Navy and Marine Corps EA-6B support — gave enough theatre-level EW without the cost of a dedicated Raven fleet. Many USAF operators disputed the call, arguing integrated systems could not match a dedicated platform, but post-Cold-War budget pressure carried the day. The Raven retired without a direct replacement, and the USAF did not field another dedicated theatre EW aircraft until the EC-37B Compass Call in 2023 — and that is a stand-off platform rather than an escort.

Did the EF-111A ever shoot down an enemy aircraft?

One credited air-to-air kill, unique in U.S. aviation history because the Raven was unarmed. During Operation Desert Storm on 17 January 1991, Captain Jim Denton and Captain Brent Brandon were attacked by an Iraqi Mirage F1; in the resulting manoeuvring fight, the Iraqi pilot lost control trying to follow the EF-111A's defensive flight profile and flew into the ground. The Raven was credited with the kill, making it one of the only unarmed aircraft in modern U.S. military history with an air-to-air victory. The crew received the Distinguished Flying Cross.

What is the AN/ALQ-99E jamming system?

AN/ALQ-99E is the USAF version of the AN/ALQ-99 jamming system carried on the EF-111A — derived from, but configured differently to, the U.S. Navy AN/ALQ-99 on the EA-6B Prowler. The Raven configuration ran up to nine simultaneous jammers, with antennas in the dorsal canoe fairing and receivers in the ventral football fairing. AN/ALQ-99E covered surface-to-air missile radars, early-warning radars, and command-control links across wide bandwidths. The system was upgraded several times during the Raven's service life through the Block 4, Block 5, and SIP programmes, each step improving threat coverage and signal processing.

Where can I see an EF-111A today?

The National Museum of the U.S. Air Force at Wright-Patterson AFB, Dayton, Ohio, is the premier USAF aviation display site and has a full EF-111A exhibit. Other examples are at the USAF Armament Museum (Eglin AFB, Florida), Hill Aerospace Museum (Hill AFB, Utah), and the Cannon Air Force Base history collection in New Mexico, near where the type retired. Around 6 EF-111As are preserved on public display in the United States. With its dorsal canoe and ventral football fairings, the airframe makes for a memorable exhibit.

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