{"id":243152,"date":"2026-04-07T08:42:31","date_gmt":"2026-04-07T06:42:31","guid":{"rendered":"https:\/\/migflug.com\/jetflights\/?p=243152"},"modified":"2026-09-04T09:39:40","modified_gmt":"2026-09-04T07:39:40","slug":"compass-call-makes-its-combat-debut-over-iran","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/compass-call-makes-its-combat-debut-over-iran\/","title":{"rendered":"Compass Call Makes Its Combat Debut Over Iran"},"content":{"rendered":"\n<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\n<!-- mfsh:top -->\n\n<style>\n.mfsh-trigger{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 18px;margin:0 0 26px;border:2px solid #0F1720;background:#fff;color:#0F1720;font-family:inherit;font-size:14px;font-weight:700;line-height:1;letter-spacing:0;text-transform:none;cursor:pointer;box-shadow:none;transition:background .15s,color 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else window.open(target, '_blank', 'noopener,width=680,height=560'); }\n    close();\n  }\n  var mq = window.matchMedia('(min-width:981px)');\n  function place(){\n    var t = document.querySelector('.mfsh-trigger[data-mfsh-placement=\"top\"]'), slot = document.querySelector('.mfsh-top-slot');\n    var meta = [].slice.call(document.querySelectorAll('.et_pb_title_meta_container, .et_post_meta_wrapper .post-meta, .single .post-meta')).filter(function(m){ return m.offsetParent !== null; })[0];\n    if (!t || !slot) return;\n    if (meta && mq.matches) { meta.classList.add('mfsh-meta'); t.classList.add('mfsh-inmeta'); if (t.parentNode !== meta) meta.appendChild(t); var a = meta.querySelector('a'); if (a) { var pr = document.createElement('span'); pr.style.cssText = 'display:inline-block;width:0;height:0;vertical-align:baseline'; a.appendChild(pr); var base = pr.getBoundingClientRect().bottom; pr.remove(); var fs = parseFloat(getComputedStyle(a).fontSize) || 14, mb = meta.getBoundingClientRect().bottom; t.style.bottom = Math.max(0, mb - (base + fs * 0.12)) + 'px'; } }\n    else { t.classList.remove('mfsh-inmeta'); if (t.parentNode !== slot) slot.appendChild(t); }\n  }\n  if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', place); else place(); window.addEventListener('load', place); if (document.fonts && document.fonts.ready) document.fonts.ready.then(place); window.addEventListener('resize', place);\n  if (mq.addEventListener) mq.addEventListener('change', place); else mq.addListener(place);\n  document.addEventListener('click', function(e){ var b = e.target.closest('.mfsh-trigger'); if (b) { e.preventDefault(); open(b.getAttribute('data-mfsh-placement') || 'top'); } });\n})();\n<\/script><!-- \/mfsh:top -->\n\n\n\n\n<div style=\"background:#f0f4f8;border-left:4px solid #1a3a5c;padding:18px 22px;margin-bottom:28px;border-radius:0 8px 8px 0;font-size:15px;line-height:1.7\">\n<strong style=\"font-size:17px;display:block;margin-bottom:8px\">Quick Facts<\/strong>\n<strong>Aircraft<\/strong> L3Harris EA-37B Compass Call (electronic attack variant of Gulfstream G550)<br>\n<strong>Replaces<\/strong> EC-130H Compass Call (only 4 remain in service)<br>\n<strong>Deployed From<\/strong> Davis-Monthan AFB via RAF Mildenhall to the Middle East<br>\n<strong>Aircraft Serials<\/strong> 17-5579 and 19-1587 (55th Electronic Combat Group)<br>\n<strong>Operation<\/strong> Epic Fury (ongoing since February 28, 2026)<br>\n<strong>Role<\/strong> Standoff electronic attack \u2014 jamming enemy communications and air defence radar<br>\n<strong>Total Fleet Planned<\/strong> 10 EA-37Bs to replace the EC-130H fleet\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px\"><img decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/8\/8f\/EC-130H_Compass_Call_060617.jpg\/960px-EC-130H_Compass_Call_060617.jpg\" alt=\"EC-130H Compass Call electronic warfare aircraft\" style=\"display:block;width:100%!important;max-width:100%!important;height:auto!important;border-radius:6px\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">An EC-130H Compass Call \u2014 the turboprop predecessor the EA-37B is replacing. Only four remain in service. (Wikimedia Commons)<\/figcaption><\/figure>\n\n\n<p class=\"wp-block-paragraph\">Two EA-37B Compass Call aircraft slipped out of Davis-Monthan Air Force Base in late March, crossed the Atlantic to RAF Mildenhall, and kept going \u2014 south to Souda Bay in Crete, then into the combat zone. It was the first operational deployment of the Air Force's newest electronic warfare platform, and it went straight into a shooting war.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The aircraft \u2014 serials 17-5579 and 19-1587, both wearing the DM tail codes of the 55th Electronic Combat Group \u2014 are now supporting Operation Epic Fury, the ongoing U.S. air campaign against Iran. Their mission: jam Iranian communications networks and blind the air defence radars that have already claimed an <a href=\"https:\/\/migflug.com\/aircraft\/f-15e-strike-eagle\">F-15E<\/a> and an <a href=\"https:\/\/migflug.com\/aircraft\/a-10-warthog\">A-10<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CENTCOM confirmed the deployment on April 2. For an aircraft type that had never left American airspace in an operational capacity, this was not a gentle introduction.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"padding-top:22px\">From Turboprop to Business Jet<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The EA-37B is built on a Gulfstream G550 airframe \u2014 a $60 million executive jet repurposed as an electronic attack platform. It replaces the EC-130H Compass Call, a modified C-130 Hercules that has been jamming enemy signals since the 1980s. Only four of the ageing turboprops remain operational.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The jump in capability is dramatic. The G550 flies higher, faster, and farther than the Hercules it replaces. Its jet speed means it can keep pace with strike packages rather than orbiting behind them. And its electronic warfare suite, built by L3Harris and BAE Systems, is a generation ahead of the old EC-130H's equipment \u2014 capable of targeting modern networked air defences of the kind Iran operates.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Air Force plans to buy 10 EA-37Bs in total. With two now forward-deployed, that means 20 percent of the planned fleet is already in combat before the programme has even reached full production.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px\"><img decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/94\/Gulfstream_G550.svg\/960px-Gulfstream_G550.svg.png\" alt=\"Gulfstream G550 airframe used for EA-37B\" style=\"display:block;width:100%!important;max-width:100%!important;height:auto!important;border-radius:6px\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">The Gulfstream G550 business jet forms the backbone of the EA-37B \u2014 trading leather seats for some of the most advanced electronic warfare equipment in existence. (Wikimedia Commons)<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\" style=\"padding-top:22px\">Why Electronic Warfare Matters Now<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The deployment is not a coincidence. Iran's integrated air defence network \u2014 a layered system of S-300PMU-2, Bavar-373, and Khordad-15 surface-to-air missiles \u2014 has already demonstrated it can bite. The shootdown of an F-15E Strike Eagle on April 3 was the first loss of a U.S. combat aircraft to enemy fire in 23 years. An A-10 was hit the same day.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Electronic warfare aircraft like the EA-37B exist to degrade those defences before strike aircraft arrive. By jamming the radar signals that guide SAMs to their targets, Compass Call creates blind spots in the enemy's detection grid \u2014 corridors through which fighters and bombers can operate with reduced risk.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The old EC-130H did this job for decades over Iraq, Afghanistan, Libya, and Syria. But Iran's defences are more modern, more networked, and more lethal than anything the Compass Call fleet has faced before. Sending the EA-37B \u2014 with its newer suite designed specifically for these threats \u2014 signals that the Pentagon considers Iran's air defence network a first-order problem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"padding-top:22px\">Baptism by Fire<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most new aircraft types enter service quietly \u2014 routine training flights, peacetime deployments, years of working out the kinks before combat. The EA-37B skipped all of that. Its first trip outside the continental United States is a war zone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That urgency says something about the state of the air campaign. Five weeks into Operation Epic Fury, the U.S. has lost multiple aircraft, expended hundreds of cruise missiles, and discovered that Iran's air defences are tougher than pre-war assumptions suggested. The EA-37B's rushed deployment is a response to a real operational gap \u2014 one the ageing EC-130H fleet can no longer fill.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Whether these two aircraft prove the concept or reveal teething problems, their combat debut will write the playbook for electronic warfare in the next generation. The first chapter is being written right now, somewhere over the Middle East.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Sources: Scramble, Air &amp; Space Forces Magazine, The War Zone, AeroTime<\/em><\/p>\n<!-- mfsh:bottom -->\n\n<button type=\"button\" class=\"mfsh-trigger mfsh-bottom\" data-mfsh-placement=\"bottom\" aria-haspopup=\"dialog\"><svg><use href=\"#mfsh-i-share\"\/><\/svg>Share this story<\/button>\n\n<!-- \/mfsh:bottom -->\n\n\n\n<!-- mf-faq -->\n\n<div class=\"mf-faq-block\"><style>.mf-faq-block{margin:34px 0}.mf-faq-item:not([open]) .mf-faq-answer{display:none !important}.mf-faq-block h2.mf-faq-h{padding-top:22px;margin-bottom:14px}.mf-faq-item{border:1px solid #e2e8f5;border-radius:8px;margin:0 0 10px;background:#fff}.mf-faq-item summary{list-style:none;cursor:pointer;padding:15px 50px 15px 18px;font-weight:600;color:#1a1a1a;position:relative;line-height:1.45;user-select:none}.mf-faq-item summary::-webkit-details-marker{display:none}.mf-faq-item summary::after{content:\"+\";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.5em;font-weight:400;color:#5C91FF;line-height:1}.mf-faq-item[open] summary::after{content:\"\\2013\"}.mf-faq-item[open] summary{border-bottom:1px solid #eef1f8}.mf-faq-item summary:hover{background:#f5f8ff}.mf-faq-answer{padding:14px 18px;color:#333;line-height:1.6}.mf-faq-answer p{margin:0}.mf-faq-answer a{color:#5C91FF}<\/style><h2 class=\"mf-faq-h\">Related Questions<\/h2><details class=\"mf-faq-item\"><summary>What is the EA-37B Compass Call?<\/summary><div class=\"mf-faq-answer\"><p>The EA-37B Compass Call is the US Air Force's newest electronic-attack aircraft, built by L3Harris on a Gulfstream G550 business-jet airframe. It jams enemy communications and air-defence radar from standoff range, and is replacing the ageing EC-130H. Its <a href=\"https:\/\/migflug.com\/afterburner\/compass-calls-combat-debut-electronic-warfare-goes-to-war\/\">first operational deployment<\/a> took it straight into a combat zone.<\/p><\/div><\/details><details class=\"mf-faq-item\"><summary>What does Compass Call do?<\/summary><div class=\"mf-faq-answer\"><p>Compass Call is a standoff electronic-attack platform: it disrupts enemy command networks, communications and radar by jamming and other electronic means, blinding and confusing air defences. Rather than firing weapons, it clears the way for strike aircraft, complementing radar-killing missions flown by <a href=\"https:\/\/migflug.com\/afterburner\/wild-weasels-first-in-last-out-sead-vietnam-ygbsm\/\">Wild Weasel<\/a> crews.<\/p><\/div><\/details><details class=\"mf-faq-item\"><summary>What aircraft is the EA-37B based on?<\/summary><div class=\"mf-faq-answer\"><p>The EA-37B is based on the Gulfstream G550, a long-range business jet, heavily modified by L3Harris to carry electronic-warfare equipment. The jet airframe gives it far greater speed, altitude and endurance than the turboprop EC-130H it replaces, letting it keep pace with modern strike packages.<\/p><\/div><\/details><details class=\"mf-faq-item\"><summary>What does the EA-37B replace?<\/summary><div class=\"mf-faq-answer\"><p>The EA-37B replaces the EC-130H Compass Call, a Hercules-based electronic-warfare aircraft of which only a handful remained in service. The Air Force plans a fleet of around 10 EA-37Bs, trading the slow turboprop for a faster, higher-flying business-jet platform while keeping the Compass Call mission.<\/p><\/div><\/details><details class=\"mf-faq-item\"><summary>What is electronic warfare in military aviation?<\/summary><div class=\"mf-faq-answer\"><p>Electronic warfare is the use of the electromagnetic spectrum to attack, protect and gather intelligence, including jamming enemy radar and communications. In air combat it underpins the suppression of enemy air defences, a mission with roots in the <a href=\"https:\/\/migflug.com\/afterburner\/wild-weasels-first-in-last-out-sead-vietnam-ygbsm\/\">Wild Weasel<\/a> campaigns and now carried forward by aircraft like the EA-37B Compass Call.<\/p><\/div><\/details><\/div>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the EA-37B Compass Call?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The EA-37B Compass Call is the US Air Force's newest electronic-attack aircraft, built by L3Harris on a Gulfstream G550 business-jet airframe. It jams enemy communications and air-defence radar from standoff range, and is replacing the ageing EC-130H. Its <a href=\\\"https:\/\/migflug.com\/afterburner\/compass-calls-combat-debut-electronic-warfare-goes-to-war\/\\\">first operational deployment<\/a> took it straight into a combat zone.\"}},{\"@type\":\"Question\",\"name\":\"What does Compass Call do?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compass Call is a standoff electronic-attack platform: it disrupts enemy command networks, communications and radar by jamming and other electronic means, blinding and confusing air defences. 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In air combat it underpins the suppression of enemy air defences, a mission with roots in the <a href=\\\"https:\/\/migflug.com\/afterburner\/wild-weasels-first-in-last-out-sead-vietnam-ygbsm\/\\\">Wild Weasel<\/a> campaigns and now carried forward by aircraft like the EA-37B Compass Call.\"}}]}<\/script><!-- \/mf-faq -->","protected":false},"excerpt":{"rendered":"<p>Share this story Quick Facts Aircraft L3Harris EA-37B Compass Call (electronic attack variant of Gulfstream G550) Replaces EC-130H Compass Call (only 4 remain in service) Deployed From Davis-Monthan AFB via RAF Mildenhall to the Middle East Aircraft Serials 17-5579 and 19-1587 (55th Electronic Combat Group) Operation Epic Fury (ongoing since February 28, 2026) Role Standoff [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":243170,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[664,670],"tags":[],"class_list":["post-243152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-military-aviation","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Compass Call Makes Its Combat Debut Over Iran | Afterburner - MiGFlug&#039;s Magazine<\/title>\n<meta name=\"description\" content=\"An EC-130H Compass Call \u2014 the turboprop predecessor the EA-37B is replacing. 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