一种新型中距空空导弹已由瑞典的Saab 导弹公司和英国的航宇防御公司(BAe)开始方案研究。S225X 导弹,下一代超视距战斗系统(BVR),是一项完全由公司投资的计划,起初是打算装备瑞典的JA39Gripen 歼击机,可能还有欧洲歼击机。S225X 为无翼、尾部控制的设计,具有发射后不管的性能,还可对数据链进行修正。BAe 声称,该弹可为21世纪提供 ECCM(电子对抗)能力。S225X 设计将包含一定的隐身特征,如雷达截面小,寻的头功率输出较低,通过多光谱尾流减少技术使红外特征减小。主动雷达寻的头是 Thomson-CSF设计的,是主动天闪寻的头的发展,本身又是 Kormoran(科莫隆)反舰导弹所用的Thomson-CSF 寻的头的派生型。S225X 的的寻头用了一个编织网式的雷达吸收材料“套”,从天线阵的尾部套到框架结构,以防止功率辐射泄漏得太多,从而进一步减小雷达特征。这两个公司正在为此弹探讨双助推和冲压喷气这两种发动机方案。这两种发动机由 A new mid-range airspace-to-air missile has started its program study by Sweden’s Saab Missile Company and British aerospace defense company (BAe). The S225X missile, the next-generation BVR system, is a fully company-funded initiative initially planned to be equipped with the Swedish JA39Gripen fighter aircraft and possibly the European fighter aircraft. The S225X is a wingless, tail-controlled design that has the ability to launch regardless of the performance of the data chain can also be amended. BAe claims that the bomb offers ECCM (electronic warfare) capabilities in the 21st century. The S225X design will include stealth features such as low radar cross section, low head power output, and reduced infrared features with multi-spectral wake reduction technology. The Active Radar Seeker is a Thomson-CSF-designed head that is actively developing and is itself a derivative of the Thomson-CSF hunt used in Kormoran anti-ship missiles. The S225X’s head-finder uses a braided mesh radar-absorbing material “sleeve” that is shrouded from the rear of the antenna array to the frame structure to prevent the power radiation from leaking too much to further reduce the radar features. The two companies are now exploring the twin booster and ramjet engine options. These two engines are made of