{"id":1849,"date":"2026-03-18T11:25:07","date_gmt":"2026-03-18T11:25:07","guid":{"rendered":"https:\/\/zephyrsys.us\/index.php\/2026\/03\/18\/japans-platypus-ec-2-stand-off-jammer-flies-for-the-first-time\/"},"modified":"2026-03-18T11:25:07","modified_gmt":"2026-03-18T11:25:07","slug":"japans-platypus-ec-2-stand-off-jammer-flies-for-the-first-time","status":"publish","type":"post","link":"https:\/\/zephyrsys.us\/index.php\/2026\/03\/18\/japans-platypus-ec-2-stand-off-jammer-flies-for-the-first-time\/","title":{"rendered":"Japan\u2019s \u201cPlatypus\u201d EC-2 Stand-Off Jammer Flies for the First Time"},"content":{"rendered":"

\"Japan<\/p>\n

Japan has started the flight testing of the EC-2 Stand-Off Jammer aircraft, whose unusual shape has attracted widespread interest among aviation enthusiasts.<\/h2>\n

Japan\u2019s EC-2 Stand-Off Jammer aircraft<\/a> has finally conducted its first flight on Mar. 17, 2026, after its unusual appearance \u2013 due to the fairings for the specialized equipment \u2013 caught widespread interest among aviation enthusiasts. The aircraft has already earned a number of monikers, from the \u201cPlatypus\u201d already held by its predecessor \u2013 the EC-1 \u2013 to the \u201cworld\u2019s ugliest aircraft,\u201d with the latter sparking debate in the aviation community about which aircraft should hold this title.<\/p>\n

The aircraft was first spotted at Gifu Air Base<\/a> in February 2026, parked on the apron. Few days ago, the aircraft was spotted again while conducting taxi testing both at low and high speed in preparation for the first flight, with the number of photos and videos online quickly increasing.<\/p>\n

\n

JASDF, in coordination with ATLA, supported the first flight of the stand-off electronic warfare aircraft\"\ud83d\udee9\"\"\ud83d\udce1\". We will continue working toward its introduction to improve capabilities in the electromagnetic domain and to strengthen the cross-domain operations capabilities. pic.twitter.com\/bbMtjOFeP2<\/a><\/p>\n

\u2014 Japan Air Self-Defense Force (@JASDF_PAO_ENG) March 18, 2026<\/a><\/p>\n<\/blockquote>\n

The EC-2, which was also visible on flight tracking websites, took off for the maiden flight at 11:30 am local time, returning after approximately three hours. It is unclear if it was accompanied by a safety chase aircraft.<\/p>\n

\n

\u4eca\u65e5\u304c\u65b0\u578b\u96fb\u5b50\u6226\u6a5f\uff08\u4eee\u79f0EC-2\uff09\u306e\u521d\u30d5\u30e9\u30a4\u30c8
\n\u4eca\u5f8c\u3001\u4e00\u5e74\u307b\u3069\u958b\u767a\u5b9f\u9a13\u96c6\u56e3\u3067\u642d\u8f09ECM\u88c5\u7f6eJ\/ALQ-XX\u7b49\u306e\u8a66\u9a13\u8a55\u4fa1\u304c\u884c\u308f\u308c\u308b\u3068\u307f\u3089\u308c\u308bhttps:\/\/t.co\/hHAhNe5wEh<\/a> pic.twitter.com\/x2n6DpCMDw<\/a><\/p>\n

\u2014 WEASEL (@WEASEL32) March 17, 2026<\/a><\/p>\n<\/blockquote>\n

The flight test campaign is being conducted by the Japan Air Self-Defense Force<\/a>\u2019s (JASDF) Aviation Development and Testing Group and the Acquisition, Technology & Logistics Agency (ATLA). In a post on social media, the JASDF said it \u201cwill continue working toward its introduction to improve capabilities in the electromagnetic domain and to strengthen the cross-domain operations capabilities.\u201d<\/p>\n

\"EC-2<\/a>
The Kawasaki EC-2 SOJ photographed on the ramp at Gifu Air Base. (Image credit: JASDF Aviation Development and Testing Group)<\/figcaption><\/figure>\n

EC-2 SOJ<\/h3>\n

As we mentioned in our previous reports here at The Aviationist<\/em>, the EC-2 is the latest in a number of Japanese aircraft with unusual modifications, and has been in development since 2021. Before being spotted in February 2026, the secretive aircraft was only shown only in a rendering by the Ministry of Defense.<\/p>\n

\n

https:\/\/t.co\/rBniYCTWQK<\/a> pic.twitter.com\/rqA8ZXSNqG<\/a><\/p>\n

\u2014 \u822a\u7a7a\u81ea\u885b\u968a \u822a\u7a7a\u958b\u767a\u5b9f\u9a13\u96c6\u56e3 (@jasdf_adtc) March 17, 2026<\/a><\/p>\n<\/blockquote>\n

The new EC-2 Stand-Off Jammer (SOJ) is a derivative of the Kawasaki Heavy Industries (KHI)\u00a0C-2 transport aircraft<\/a>. Notably, the airframe selected for the conversion is the former C-2 18-1203, the type\u2019s first production airframe.<\/p>\n

The aircraft has been modified with a bulbous nose \u2013 similar to the EC-1 it will replace \u2013 as well as two large bulges on the top of the fuselage, while two more are located on the sides of the fuselage between the wings and the horizontal stabilizers. These are meant to host a variety of specialized equipment, such as Electronic Support Measures<\/a> (ESM), Electronic CounterMeasures (ECM), and satellite communications (SATCOM).<\/p>\n

\n

RAT\u98a8\u8eca\u306f\u521d\u56de\u8a66\u9a13\u98db\u884c\u306e\u83ef<\/p>\n

Standoff Jammer with
\nRam Air Turbine
\nKawasaki EC-2 68-1203
\n2026.March.17 14:20
\nRJNG Gifu Airbase https:\/\/t.co\/FOFLjM9Ayg<\/a> pic.twitter.com\/M4ESV0SvnO<\/a><\/p>\n

\u2014 \u3082\u3050\u3089 (@M0GURA_) March 17, 2026<\/a><\/p>\n<\/blockquote>\n

The EC-2 is being developed to disrupt an adversary\u2019s electronic warfare (EW) capabilities while still flying outside of the threat\u2019s range. The Japanese Ministry of Defense previously said the aircraft will be used to support counter air operations in conjunction with other tactical assets.<\/p>\n

Details about the program are currently limited, and only found in the\u00a0MoD budget documents<\/a>, which mention \u00a541.4 billion have been allocated to the development. This is included in a larger \u00a5508.6 billion investment to strengthen intelligence collection and analysis capabilities.<\/p>\n

\n

2026\/3\/16 \u5c90\u961c\u98db\u884c\u5834
\n\u5ddd\u5d0e\u91cd\u5de5\u6539\u4fee\u6a5f\u5730\u4e0a\u6ed1\u8d70\u8a66\u9a13
\nC-2\uff08203\uff09SOJ\u6539\u4fee\u6a5f
\n\u3044\u3088\u3044\u3088\u51fa\u3066\u304d\u307e\u3057\u305f\u3001\u6b21\u671f\u30ab\u30e2\u30ce\u30cf\u30b7\u3002
\n\u672c\u65e5\u306f\u5730\u4e0a\u6ed1\u8d70\u8a66\u9a13\u3092\u5b9f\u65bd\u3002
\n\u7570\u69d8\u306a\u59ff\u3067\u898b\u6163\u308c\u308b\u306b\u306f\u6642\u9593\u304c\u8981\u308a\u307e\u3059\u3002#\u5c90\u961c\u98db\u884c\u5834<\/a>#\u5ddd\u5d0e\u91cd\u5de5<\/a>
\n\u3057\u3063\u304b\u3057\u3053\u308c\u2026\u30b3\u30af\u30d4\u30c3\u30c8\u8996\u754c\uff08\u524d\u4e0b\u65b9\uff09\u3069\u3046\u306a\u3063\u3066\u308b\u3093\u3060\u308d\u2026 pic.twitter.com\/K28lOY5Nnc<\/a><\/p>\n

\u2014 Naoki_O (@naoki_o_0557) March 16, 2026<\/a><\/p>\n<\/blockquote>\n

The development of both the EC-2 and RC-2 (the C-2\u2019s other specialized variant) platforms is specifically mentioned as part of the MoD\u2019s effort to \u201cImprove capabilities to gather electromagnetic information necessary for electronic jamming and electronic protection\u201d and \u201cDevelop necessary equipment to constantly and continuously gather, process, and analyze information especially on military trends in the vicinity of Japan.\u201d<\/p>\n

The aircraft will replace the unique EC-1<\/a>, which was fielded in 1986 and retired in 2025, but in a larger fleet. In fact, while the EC-1 program resulted in a single aircraft, the EC-2 fleet will include four aircraft, according to MoD budget documents.<\/p>\n

\n

EC-2\uff1f\u304c\u51fa\u3066\u304d\u305f\u3088\u3046\u3067\u3059\u304c\u3001\u6a5f\u9996\u306f\u52ff\u8ad6\u3001\u80cc\u4e2d\u3068\u5f8c\u90e8\u80f4\u4f53\u5074\u9762\u306e\u30b3\u30d6\u306e\u30c7\u30ab\u3055\u304c\u51c4\u307e\u3058\u304f\u3066\u8feb\u529b\u3042\u308a\u307e\u3059\u306d\uff01
\n\u6539\u3081\u3066\u898b\u308b\u3068\u3001EC-1\u306f\u80cc\u4e2d\u304c\u30b9\u30c3\u30ad\u30ea\u3057\u3066\u3066\u3001\u8efd\u3084\u304b\u306b\u898b\u3048\u308b\u304f\u3089\u3044\u2026
\n\u3068\u3044\u3046\u4e8b\u3067\u65b0\u305f\u306b\u5207\u308a\u51fa\u3057\u3066\u307f\u307e\u3057\u305f\u3002#\u7a7a\u64ae\u306e\u866b\u5e72\u3057<\/a>#\u7528\u9014\u5ec3\u6b62\u306b\u306a\u3063\u305f\u98db\u884c\u6a5f\u5199\u771f\u3092\u4e0a\u3052\u308b\u898b\u305f\u4eba\u3082<\/a> pic.twitter.com\/aunQLU2kHi<\/a><\/p>\n

\u2014 \u5150\u7389\u201cSONY\u201d\u7814\u53f8 (@SONY74383228) March 16, 2026<\/a><\/p>\n<\/blockquote>\n

The program is divided in two phases, focusing on the integration of the new capabilities and their refinement, respectively. Testing is expected to be completed in this fiscal year, with fielding planned for 2027.<\/p>\n

Among the equipment there will be components inherited from the EC-1, such as the J\/ALQ-5 electronic countermeasures (ECM) system and advanced radio wave measurement systems. The aircraft is expected to be operated by the Denshi Sakusengun (Electronic Warfare Operations Group) at\u00a0Iruma Air Base<\/a>, the same which operates the EC-1 and will in future also operate the RC-2.<\/p>\n

\n

3\/17 \u5c90\u961c\u57fa\u5730 RJNG EC-2 203 \u30b9\u30bf\u30f3\u30c9\u30aa\u30d5\u96fb\u5b50\u6226\u6a5f<\/p>\n

\u795d \u521d\u98db\u884c\uff01<\/p>\n

\u7740\u9678\u3060\u3051\u3067\u3082\u898b\u308c\u3066\u826f\u304b\u3063\u305f\u3067\u3059\"\ud83d\ude4f\"
\n2\u4ee3\u76ee\u30ab\u30e2\u30ce\u30cf\u30b7\u306e\u3054\u6d3b\u8e8d\u3092\u671f\u5f85\u3057\u3066\u3044\u307e\u3059\u266a pic.twitter.com\/r8Yxg8GjZD<\/a><\/p>\n

\u2014 ih168 (@ih1681) March 17, 2026<\/a><\/p>\n<\/blockquote>\n

The other specialized variant<\/h3>\n

The RC-2 is the C-2\u2019s first specialized variant<\/a>, which has been designed for signal intelligence (SIGINT) and electronic intelligence (ELINT) roles after the program was launched in 2015. The airframe used for this program is the former C-2 18-1202, the type\u2019s second prototype.<\/p>\n

The aircraft was modified with similar, but smaller, bulges compared to the EC-2. These include an enlarged nose section, two bulges on the top of the fuselage, two on the sides of the rear portion of the fuselage, as well as enlarged fairings on top of the tail and the tail cone.<\/p>\n

It is unclear which type of specialized equipment is installed, but these would normally includes multiple arrays and antenna for wideband receivers, supported by signal processing hardware. These will allow the RC-2 platform to collect and analyze signals from an adversary\u2019s emitters in order to generate an Electronic Order of Battle<\/a> (EOB).<\/p>\n

\"\"<\/a>
File photo of the RC-2 taking off for a sortie. (Image credit: Japanese Ministry of Defense)<\/figcaption><\/figure>\n

Similarly to the EC-2, the RC-2 was first spotted during testing at Gifu Air Base in February 2018. The aircraft replaced the obsolete JASDF\u2019s YS-11EB aircraft of the Electronic Intelligence Squadron retired in 2021, a year after the RC-2 was officially inducted in service.<\/p>\n

The RC-2 is explicitly mentioned in the Japanese MoD\u2019s budget document in the line regarding the acquisition of a single SIGINT aircraft for \u00a549.6 billion. This line is part of the same \u00a5508.6 billion investment to strengthen intelligence collection and analysis capabilities which includes the EC-2.<\/p>\n

Kawasaki C-2<\/h3>\n

The C-2 is a long range twin-engine transport aircraft designed by Kawasaki to replace its earlier\u00a0C-1 transport aircraft<\/a>. The aircraft is, like its predecessor, a homegrown Japanese design, which flew for the first time in January 2010 and entered service six years later in 2016 with 18 airframes.<\/p>\n

\"\"<\/a>
The first and third Kawasaki C-2 aircraft. (Image credit: Japanese Ministry of Defense)<\/figcaption><\/figure>\n

While smaller than other four-engined jet transport aircraft like the C-17 Globemaster III, the C-2 is significantly larger than the C-1 it replaced or the other twin-engine military jet cargo aircraft, the\u00a0Embraer C-390<\/a>. The aircraft is roughly equivalent in capacity to the Airbus A400M, but offers a higher cruise speed, service ceiling, and increased range.<\/p>\n

The C-2 is capable of transporting 110 people and can fly for about 7,600 kilometers (4,100\u00a0NM) with 20 tons of cargo or 4,500\u00a0km ( 2,400\u00a0NM) with a payload of 36\u00a0tons. The aircraft is also able to take-off in 500 m from semi-prepared runways.<\/p>\n

The C-2 uses General Electric CF6 turbofan engines which are widely employed in both civilian and military service. These are notably used also by Japan\u2019s KC-767 tankers, though the\u00a0newer KC-46s<\/a>\u00a0instead use Pratt & Whitney powerplants.<\/p>","protected":false},"excerpt":{"rendered":"

Japan has started the flight testing of the EC-2 Stand-Off Jammer aircraft, whose unusual shape has attracted widespread interest among aviation enthusiasts. Japan\u2019s EC-2 Stand-Off Jammer aircraft has finally conducted its first flight on Mar. 17, 2026, after its unusual appearance \u2013 due to the fairings for the specialized equipment \u2013 caught widespread interest among […]<\/p>\n","protected":false},"author":1,"featured_media":1850,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/posts\/1849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/comments?post=1849"}],"version-history":[{"count":0,"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/posts\/1849\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/media\/1850"}],"wp:attachment":[{"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/media?parent=1849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/categories?post=1849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zephyrsys.us\/index.php\/wp-json\/wp\/v2\/tags?post=1849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}