Japan has began the flight testing of the EC-2 Stand-Off Jammer plane, whose uncommon form has attracted widespread curiosity amongst aviation fans.
Japan’s EC-2 Stand-Off Jammer plane has lastly carried out its first flight on Mar. 17, 2026, after its uncommon look – because of the fairings for the specialised tools – caught widespread curiosity amongst aviation fans. The plane has already earned quite a few monikers, from the “Platypus” already held by its predecessor – the EC-1 – to the “world’s ugliest plane,” with the latter sparking debate within the aviation neighborhood about which plane ought to maintain this title.
The plane was first noticed at Gifu Air Base in February 2026, parked on the apron. Few days in the past, the plane was noticed once more whereas conducting taxi testing each at high and low pace in preparation for the primary flight, with the variety of photographs and movies on-line rapidly growing.
JASDF, in coordination with ATLA, supported the primary flight of the stand-off digital warfare plane🛩️📡. We’ll proceed working towards its introduction to enhance capabilities within the electromagnetic area and to strengthen the cross-domain operations capabilities. pic.twitter.com/bbMtjOFeP2
— Japan Air Self-Protection Power (@JASDF_PAO_ENG) March 18, 2026
The EC-2, which was additionally seen on flight monitoring web sites, took off for the maiden flight at 11:30 am native time, returning after roughly three hours. It’s unclear if it was accompanied by a security chase plane.
今日が新型電子戦機（仮称EC-2）の初フライト今後、一年ほど開発実験集団で搭載ECM装置J/ALQ-XX等の試験評価が行われるとみられる pic.twitter.com/x2n6DpCMDw
— WEASEL (@WEASEL32) March 17, 2026
The flight check marketing campaign is being carried out by the Japan Air Self-Protection Power’s (JASDF) Aviation Growth and Testing Group and the Acquisition, Know-how & Logistics Company (ATLA). In a publish on social media, the JASDF stated it “will proceed working towards its introduction to enhance capabilities within the electromagnetic area and to strengthen the cross-domain operations capabilities.”
EC-2 SOJ
As we talked about in our earlier studies right here at The Aviationist, the EC-2 is the newest in quite a few Japanese plane with uncommon modifications, and has been in growth since 2021. Earlier than being noticed in February 2026, the secretive plane was solely proven solely in a rendering by the Ministry of Protection.
pic.twitter.com/rqA8ZXSNqG
— 航空自衛隊 航空開発実験集団 (@jasdf_adtc) March 17, 2026
The brand new EC-2 Stand-Off Jammer (SOJ) is a by-product of the Kawasaki Heavy Industries (KHI) C-2 transport plane. Notably, the airframe chosen for the conversion is the previous C-2 18-1203, the kind’s first manufacturing airframe.
The plane has been modified with a bulbous nostril – much like the EC-1 it would exchange – in addition to two massive bulges on the highest of the fuselage, whereas two extra are positioned on the edges of the fuselage between the wings and the horizontal stabilizers. These are supposed to host quite a lot of specialised tools, comparable to Digital Help Measures (ESM), Digital CounterMeasures (ECM), and satellite tv for pc communications (SATCOM).
RAT風車は初回試験飛行の華
Standoff Jammer withRam Air TurbineKawasaki EC-2 68-12032026.March.17 14:20RJNG Gifu Airbase pic.twitter.com/M4ESV0SvnO
— もぐら (@M0GURA_) March 17, 2026
The EC-2 is being developed to disrupt an adversary’s digital warfare (EW) capabilities whereas nonetheless flying exterior of the menace’s vary. The Japanese Ministry of Protection beforehand stated the plane might be used to assist counter air operations together with different tactical belongings.
Particulars about this system are presently restricted, and solely discovered within the MoD funds paperwork, which point out ¥41.4 billion have been allotted to the event. That is included in a bigger ¥508.6 billion funding to strengthen intelligence assortment and evaluation capabilities.
2026/3/16 岐阜飛行場川崎重工改修機地上滑走試験C-2（203）SOJ改修機いよいよ出てきました、次期カモノハシ。本日は地上滑走試験を実施。異様な姿で見慣れるには時間が要ります。#岐阜飛行場#川崎重工しっかしこれ…コクピット視界（前下方）どうなってるんだろ… pic.twitter.com/K28lOY5Nnc
— Naoki_O (@naoki_o_0557) March 16, 2026
The event of each the EC-2 and RC-2 (the C-2’s different specialised variant) platforms is particularly talked about as a part of the MoD’s effort to “Enhance capabilities to assemble electromagnetic data vital for digital jamming and digital safety” and “Develop vital tools to continuously and repeatedly collect, course of, and analyze data particularly on army tendencies within the neighborhood of Japan.”
The plane will exchange the distinctive EC-1, which was fielded in 1986 and retired in 2025, however in a bigger fleet. In actual fact, whereas the EC-1 program resulted in a single plane, the EC-2 fleet will embody 4 plane, based on MoD funds paperwork.
EC-2？が出てきたようですが、機首は勿論、背中と後部胴体側面のコブのデカさが凄まじくて迫力ありますね！改めて見ると、EC-1は背中がスッキリしてて、軽やかに見えるくらい…という事で新たに切り出してみました。#空撮の虫干し#用途廃止になった飛行機写真を上げる見た人も pic.twitter.com/aunQLU2kHi
— 児玉“SONY”研司 (@SONY74383228) March 16, 2026
This system is split in two phases, specializing in the combination of the brand new capabilities and their refinement, respectively. Testing is predicted to be accomplished on this fiscal 12 months, with fielding deliberate for 2027.
Among the many tools there might be elements inherited from the EC-1, such because the J/ALQ-5 digital countermeasures (ECM) system and superior radio wave measurement programs. The plane is predicted to be operated by the Denshi Sakusengun (Digital Warfare Operations Group) at Iruma Air Base, the identical which operates the EC-1 and can in future additionally function the RC-2.
3/17 岐阜基地 RJNG EC-2 203 スタンドオフ電子戦機
祝 初飛行！
着陸だけでも見れて良かったです🙏2代目カモノハシのご活躍を期待しています♪ pic.twitter.com/r8Yxg8GjZD
— ih168 (@ih1681) March 17, 2026
The opposite specialised variant
The RC-2 is the C-2’s first specialised variant, which has been designed for sign intelligence (SIGINT) and digital intelligence (ELINT) roles after this system was launched in 2015. The airframe used for this program is the previous C-2 18-1202, the kind’s second prototype.
The plane was modified with comparable, however smaller, bulges in comparison with the EC-2. These embody an enlarged nostril part, two bulges on the highest of the fuselage, two on the edges of the rear portion of the fuselage, in addition to enlarged fairings on prime of the tail and the tail cone.
It’s unclear which sort of specialised tools is put in, however these would usually contains a number of arrays and antenna for wideband receivers, supported by sign processing {hardware}. These will permit the RC-2 platform to gather and analyze alerts from an adversary’s emitters with a purpose to generate an Digital Order of Battle (EOB).
Equally to the EC-2, the RC-2 was first noticed throughout testing at Gifu Air Base in February 2018. The plane changed the out of date JASDF’s YS-11EB plane of the Digital Intelligence Squadron retired in 2021, a 12 months after the RC-2 was formally inducted in service.
The RC-2 is explicitly talked about within the Japanese MoD’s funds doc within the line relating to the acquisition of a single SIGINT plane for ¥49.6 billion. This line is a part of the identical ¥508.6 billion funding to strengthen intelligence assortment and evaluation capabilities which incorporates the EC-2.
Kawasaki C-2
The C-2 is an extended vary twin-engine transport plane designed by Kawasaki to switch its earlier C-1 transport plane. The plane is, like its predecessor, a homegrown Japanese design, which flew for the primary time in January 2010 and entered service six years later in 2016 with 18 airframes.
Whereas smaller than different four-engined jet transport plane just like the C-17 Globemaster III, the C-2 is considerably bigger than the C-1 it changed or the opposite twin-engine army jet cargo plane, the Embraer C-390. The plane is roughly equal in capability to the Airbus A400M, however presents the next cruise pace, service ceiling, and elevated vary.
The C-2 is able to transporting 110 folks and may fly for about 7,600 kilometers (4,100 NM) with 20 tons of cargo or 4,500 km ( 2,400 NM) with a payload of 36 tons. The plane can also be capable of take-off in 500 m from semi-prepared runways.
The C-2 makes use of Normal Electrical CF6 turbofan engines that are extensively employed in each civilian and army service. These are notably used additionally by Japan’s KC-767 tankers, although the newer KC-46s as a substitute use Pratt & Whitney powerplants.
