為印太戰場而生!美DARPA推「無跑道X-飛機」 貝爾打造新型高速滲透利器

上圖為貝爾公司的X-飛機渲染示意圖(取自貝爾公司官網)
美國國防高等研究計劃署(DARPA)與特種作戰司令部(SOCOM)合作推動的「SPRINT計畫」邁入關鍵第二階段,選定由貝爾德事隆(Bell Textron)負責研製一款具備高速巡航與垂直起降能力(VTOL)的實驗性「X-plane」,預計於2027年完成測試原型,2028年展開飛行測試。
DARPA and US Special Operations Command have selected Bell Textron to design and build a high-speed, runway-independent X-plane as part of the SPRINT program, with test flights expected by 2028.
這款「X飛機」的設計核心,正是為了應對印太地區島嶼分散、地形複雜、跑道不足的特殊作戰需求。它預計結合400至450節(約時速740至833公里)的高速巡航能力與短場起降/垂直升降功能,可在無需跑道的情況下迅速部署與支援。
The aircraft is tailored for the Indo-Pacific’s dispersed island terrain and lack of airfields, offering 400–450 knot cruise speed combined with vertical takeoff and landing — enabling rapid deployment from austere or maritime locations.
貝爾公司表示,其將運用自家研發的「停止/折疊旋翼」技術,融合傾轉旋翼與噴氣推進能力,讓無人機能在懸停、加速、轉向與高速巡航間無縫切換,並能從簡易場地、艦艇甲板或未鋪設跑道迅速起降。
Bell’s “stop/fold rotor” system merges tilt-rotor lift with jet propulsion, allowing seamless transition between hover and high-speed modes — ideal for takeoffs from ships or unprepared ground.
目前貝爾已於新墨西哥州霍洛曼空軍基地完成旋翼操作及風洞測試,證明系統穩定並可降低技術風險,並已申請DARPA於2026財年撥款5520萬美元(約新台幣18億元)繼續開發。
Bell has completed rotor operation and wind tunnel trials at Holloman AFB, validating core systems. DARPA has requested $55.2 million in FY2026 funding to push the program forward.
這款新型「X飛機」也將與美空軍「敏捷作戰部署(ACE)」概念整合,強調部隊能在多個小型機場、島嶼據點間分散運作,避免集中部署遭敵精準打擊。
The X-plane will integrate with the Air Force’s Agile Combat Employment (ACE) strategy, enhancing force survivability through dispersed operations across smaller airfields or island outposts.
在印太地區面對中國海空軍日益頻繁的挑釁與演訓,美方急需具備「快速起降、不依賴基地、不被雷達輕易鎖定」的先進平台,以維持戰略彈性與先發優勢。
With China’s increased carrier movements and aerial provocations in the Indo-Pacific, the US seeks stealthy, agile platforms that operate without fixed bases — maintaining regional deterrence and flexibility.
有趣的是,貝爾本次設計概念與其先前提出的無人傾轉旋翼機V-247「警惕」(Vigilant)相似,具備300節以上速度、約1000磅(約450公斤)以上有效載重,未來可能與海軍的「未來垂直起降系統」整合,拓展到更多任務場景。
The concept resembles Bell’s earlier V-247 Vigilant, an unmanned tiltrotor capable of 300+ knots and 1,000 lbs payload, making it a potential fit for the Navy’s Future Vertical Lift programs.
這意味著,這款X-plane未來不僅可用於滲透、補給、監控與空中接力任務,也可能成為海陸空聯合作戰中,針對第一島鏈的「無人高速支援骨幹」。
Beyond infiltration or resupply roles, the X-plane could become a key unmanned link in joint operations across the First Island Chain, supporting surveillance, logistics, and rapid-response missions.
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