{"id":23208114,"date":"2026-09-18T11:12:17","date_gmt":"2026-09-18T09:12:17","guid":{"rendered":"https:\/\/migflug.com\/afterburner\/agm-158-flex-modular-jassm-lockheed-martin-2026\/"},"modified":"2026-09-18T11:12:52","modified_gmt":"2026-09-18T09:12:52","slug":"agm-158-flex-modular-jassm-lockheed-martin-2026","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/fr\/agm-158-flex-modular-jassm-lockheed-martin-2026\/","title":{"rendered":"AGM-158 FLEX: Lockheed\u2019s JASSM With a Nose That Unclips"},"content":{"rendered":"\r\n<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\r\n\r\n\r\n\r\n<p>The United States fired 1,100 JASSMs at Iran in the first 39 days of the war. That is not a stockpile being drawn down. That is a stockpile being emptied.<\/p>\r\n\r\n\r\n\r\n<p>Lockheed Martin&rsquo;s answer, unveiled this week, is not a better missile. It is a missile you can take apart.<\/p>\r\n\r\n\r\n\r\n<p>The AGM-158 FLEX has a nose cone that unscrews and a tail you can reconfigure, and the company has spent $35 million of its own money getting it this far without, as far as anyone will say, a single order.<\/p>\r\n\r\n\r\n\r\n<div style=\"background:#f5f5f5;padding:20px 22px;margin:24px 0\"><p style=\"margin:0 0 10px;font-weight:700;font-size:17px;color:#1a1a1a\">Quick Facts<\/p><p style=\"margin:5px 0;font-size:15px;line-height:1.6\"><strong>What:<\/strong> AGM-158 FLEX, a modular airframe concept based on the JASSM family<\/p><p style=\"margin:5px 0;font-size:15px;line-height:1.6\"><strong>Revealed:<\/strong> Air &amp; Space Forces Association Air, Space &amp; Cyber Conference, 16 September 2026<\/p><p style=\"margin:5px 0;font-size:15px;line-height:1.6\"><strong>Modular parts:<\/strong> Removable nose cone for different sensors, reconfigurable tail for different launch methods<\/p><p style=\"margin:5px 0;font-size:15px;line-height:1.6\"><strong>Sizes:<\/strong> 206 inches, matching JASSM-XR, and 168 inches, matching JASSM-ER<\/p><p style=\"margin:5px 0;font-size:15px;line-height:1.6\"><strong>Launch options:<\/strong> Air, surface, sub-surface and ground; air-launched version stays compatible with all current and future JASSM and LRASM platforms<\/p><p style=\"margin:5px 0;font-size:15px;line-height:1.6\"><strong>Company investment:<\/strong> $35 million of Lockheed Martin&rsquo;s own funding<\/p><p style=\"margin:5px 0;font-size:15px;line-height:1.6\"><strong>Orders:<\/strong> None disclosed. Lockheed would not say whether the Air Force has contracted for it or what stage development has reached<\/p><p style=\"margin:5px 0;font-size:15px;line-height:1.6\"><strong>Why now:<\/strong> U.S. forces used 1,100 JASSMs in the first 39 days of the Iran conflict, according to a CSIS analysis published in April 2026<\/p><\/div>\r\n\r\n\r\n\r\n<h2 style=\"padding-top:22px\">What Modular Actually Means Here<\/h2>\r\n\r\n\r\n\r\n<p>Most &ldquo;modular&rdquo; weapon claims mean you can bolt a different fuze on. This one is more serious than that.<\/p>\r\n\r\n\r\n\r\n<p>The nose comes off. That is where the seeker lives, and the seeker is the part of a cruise missile that ages fastest and costs most to redesign. Swap the nose and the same airframe becomes a different weapon: land attack, anti-ship, something not yet invented.<\/p>\r\n\r\n\r\n\r\n<p>The tail is reconfigurable for different launch options, which is the other half of the trick. The same missile can be set up to fall out of a bomb bay, come off a ship, or be fired from the ground.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/b-2-spirit-releases-agm-158c-lrasm.jpg\" alt=\"A B-2 Spirit releasing an AGM-158C Long Range Anti-Ship Missile\" style=\"width:100%;height:auto;max-width:100%;display:block\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">A B-2 Spirit of the 509th Bomb Wing releases an AGM-158C LRASM, the anti-ship member of the JASSM family. FLEX would make that specialisation a matter of changing the nose rather than building a different missile. USAF photo by Tech Sgt. Thomas Barley.<\/figcaption><\/figure>\r\n\r\n\r\n\r\n<p>Two lengths are offered, and both are deliberately familiar. The 206-inch version is the same size as the JASSM-XR and the 168-inch version matches the JASSM-ER, so everything already built to carry those missiles carries these.<\/p>\r\n\r\n\r\n\r\n<div style=\"background:#f8f9fa;border-left:4px solid #5C91FF;padding:20px 22px;margin:18px 0 24px;font-size:16px;line-height:1.7;display:flex;gap:20px;align-items:flex-start\"><div><em>&ldquo;The AGM-158 FLEX airframe concept was driven by a strategic need to keep pace with rapidly evolving threats, insert emerging technologies quickly, manage obsolescence, and provide, at scale, a cost-effective missile family that can be repurposed for a wide range of missions.&rdquo;<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Lockheed Martin spokesperson<\/strong> &mdash; Statement to Air &amp; Space Forces Magazine, September 2026<\/div><\/div><\/div>\r\n\r\n\r\n\r\n<p>The word buried in that sentence is &ldquo;obsolescence&rdquo;. Cruise missiles sit in bunkers for twenty years while the electronics inside them stop being manufacturable. A missile whose expensive, perishable end unclips is a missile you can keep current without rebuilding.<\/p>\r\n\r\n\r\n\r\n<h2 style=\"padding-top:22px\">The Part Lockheed Would Not Discuss<\/h2>\r\n\r\n\r\n\r\n<p>Asked whether the Air Force has contracted for FLEX, or what stage of development it is at, the company did not answer. The $35 million is Lockheed&rsquo;s own money, spent in response to what it described as customer demand for more options.<\/p>\r\n\r\n\r\n\r\n<p>That is worth reading carefully. Companies fund things themselves when they believe an order is coming and want to be first. It is not the same as an order.<\/p>\r\n\r\n\r\n\r\n<p>There is precedent for the interest, though. In January 2025 the Air Force Life Cycle Management Center put out a notice to industry looking for technology to make its Extended Range Attack Munition modular at subcomponent level. The service has been circling this idea for a while.<\/p>\r\n\r\n\r\n\r\n<h2 style=\"padding-top:22px\">Dragon Cart, and Firing Missiles Off a Cargo Ramp<\/h2>\r\n\r\n\r\n\r\n<p>The most interesting deployment option is the one Lockheed would only gesture at.<\/p>\r\n\r\n\r\n\r\n<p>Rapid Dragon was the programme that proved you can push a pallet of cruise missiles out of the back of a C-130 or C-17, let them fall clear, and have them light up and fly. It has now become Dragon Cart and, crucially, a programme of record rather than an experiment.<\/p>\r\n\r\n\r\n\r\n<div style=\"background:#f8f9fa;border-left:4px solid #1565c0;padding:20px 22px;margin:18px 0 24px;font-size:16px;line-height:1.7;display:flex;gap:20px;align-items:flex-start\"><div><em>&ldquo;As Rapid Dragon transitions into a Dragon Cart program of record, it becomes a viable deployment platform for a variety of Air Force munitions, both in inventory and in development.&rdquo;<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Lockheed Martin spokesperson<\/strong> &mdash; On palletised launch options<\/div><\/div><\/div>\r\n\r\n\r\n\r\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/yGb5hHw60dM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allowfullscreen><\/iframe><\/div>\r\n\r\n\r\n\r\n<p><em style=\"font-size:14px;color:#777\">A Rapid Dragon test launch: a cruise missile leaving a pallet dropped from a cargo aircraft.<\/em><\/p>\r\n\r\n\r\n\r\n<p>Put the two ideas together and the logic is obvious. A modular airframe with a reconfigurable tail, dropped by the palletful from transport aircraft that were never designed to carry weapons, turns every C-17 in the inventory into a potential missile carrier. That is a very different way of counting how much magazine depth an air force has.<\/p>\r\n\r\n\r\n\r\n<h2 style=\"padding-top:22px\">Whether Any of It Gets Built<\/h2>\r\n\r\n\r\n\r\n<p>The Air Force is already planning to raise JASSM and LRASM production substantially, for the straightforward reason that it has just demonstrated how quickly it can run out.<\/p>\r\n\r\n\r\n\r\n<p>FLEX is a bet that the answer to that is not simply more of the same missile, but a cheaper family of them that can be re-roled as the threat moves. It is a good bet. It is also, at the moment, a concept with a press release, a render and thirty-five million dollars of company money behind it, and no customer anybody will name.<\/p>\r\n\r\n\r\n\r\n<p><em>Sources: Air &amp; Space Forces Magazine; Lockheed Martin; Center for Strategic and International Studies; U.S. Air Force<\/em><\/p>\r\n\r\n\r\n\r\n<style>.mfq{margin:34px 0 8px}.mfq h2{font:26px\/1.3 \"Gilroy semiBold\",Helvetica,Arial,sans-serif;color:#0d1117;padding-top:22px;margin:0 0 6px}.mfq .qa details{border-top:1px solid #5C91FF;margin:0;padding:0}.mfq .qa details:last-of-type{border-bottom:1px solid #e2e7ee}.mfq .qa summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 26px;font:18px\/1.7 \"Gilroy semiBold\",Helvetica,Arial,sans-serif;color:#0d1117}.mfq .qa summary::-webkit-details-marker{display:none}.mfq .qa summary::after{content:\"+\";font:24px Helvetica,sans-serif;color:#3568e0;flex:0 0 auto}.mfq .qa details[open] summary::after{content:\"\\2013\"}.mfq .qa details:hover summary{color:#3568e0}.mfq .qa .a{font:16px\/1.7 \"Gilroy regular\",Helvetica,Arial,sans-serif;color:#454e5e;padding:0 26px 24px}.mfq .qa .a a{color:#3568e0}@media(max-width:680px){.mfq .qa summary{padding:18px 14px;font-size:17px}.mfq .qa .a{padding:0 14px 20px}}<\/style>\r\n\r\n\r\n<section class=\"mfq\"><h2>Frequently Asked Questions<\/h2><div class=\"qa\"><details open><summary>What is the AGM-158 FLEX?<\/summary><div class=\"a\">A modular airframe concept from Lockheed Martin based on the JASSM cruise missile family, revealed at the AFA Air, Space & Cyber conference in September 2026. It has a removable nose cone so different sensors can be fitted, and a reconfigurable tail allowing different launch methods.<\/div><\/details><details><summary>Has the Air Force ordered the AGM-158 FLEX?<\/summary><div class=\"a\">Nothing has been disclosed. Lockheed Martin declined to say whether the Air Force has contracted for FLEX or what stage of development it has reached. The company has invested $35 million of its own money in the concept.<\/div><\/details><details><summary>Why does a modular cruise missile matter?<\/summary><div class=\"a\">Because the seeker in the nose is the most expensive and fastest-ageing part of a cruise missile. If the nose can be swapped, the same airframe can be re-roled for land attack or anti-ship work and kept technologically current without redesigning the whole weapon.<\/div><\/details><details><summary>How many JASSMs did the United States use against Iran?<\/summary><div class=\"a\">About 1,100 in the first 39 days of the conflict, according to an analysis by the Center for Strategic and International Studies published in April 2026. That consumption rate is a major reason the Air Force is now planning to increase JASSM and LRASM production.<\/div><\/details><details><summary>What sizes does the FLEX airframe come in?<\/summary><div class=\"a\">Two. A 206-inch extreme-range version matching the existing JASSM-XR, and a 168-inch extended-range version matching the JASSM-ER. Keeping to those dimensions means existing and future carrying aircraft need no modification.<\/div><\/details><details><summary>What is Dragon Cart?<\/summary><div class=\"a\">Dragon Cart is the successor to Rapid Dragon, the programme that demonstrated launching cruise missiles from palletised loads pushed out of the ramps of cargo aircraft such as the C-130 and C-17. It has now become a programme of record rather than an experiment.<\/div><\/details><\/div><\/section>\r\n\r\n\r\n\r\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the AGM-158 FLEX?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A modular airframe concept from Lockheed Martin based on the JASSM cruise missile family, revealed at the AFA Air, Space & Cyber conference in September 2026. 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It has now become a programme of record rather than an experiment.\"}}]}<\/script><div style=\"background:#f0f4ff;border-left:4px solid #5C91FF;padding:16px 20px;margin:32px 0 8px\"><p style=\"margin:0 0 8px;font-weight:600;color:#333\">Related Posts<\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/agm-190a-havoc-spear-afsoc-ac-130j-combat-africa-2026\/\">AGM-190A Havoc Spear: AFSOC Fires Its New Cruise Missile in Combat<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/b-1b-gets-50-more-firepower-with-external-pylons\/\">The B-1B Gets 50% More Firepower With External Pylons<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/aim-260-jatm-pentagon-lockheed-framework-agreement-2026\/\">AIM-260 JATM: Pentagon Signs Lockheed Production Deal<\/a><\/p><\/div>\r\n","protected":false},"excerpt":{"rendered":"<p>Lockheed Martin has revealed the AGM-158 FLEX, a modular JASSM airframe with a swappable nose cone and reconfigurable tail, funded with $35 million of its own money.<\/p>","protected":false},"author":23,"featured_media":23207799,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[664,670],"tags":[],"class_list":["post-23208114","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 v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AGM-158 FLEX: Lockheed\u2019s Modular JASSM | MiGFlug<\/title>\n<meta name=\"description\" content=\"Lockheed Martin revealed the AGM-158 FLEX, a JASSM airframe with a swappable nose cone and reconfigurable tail, on $35 million of company money.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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