Boeing and Norwegian protection and aerospace firm Nammo have efficiently test-fired a ramjet-powered artillery projectile, additional demonstrating the viability of one of many U.S. Military’s modernization priorities – long-range precision fires. In the course of the June 28 check on the Andøya Take a look at Middle in Norway, a Boeing Ramjet 155 projectile was fired out of a cannon and its ramjet engine ignited efficiently. It demonstrated flight stability with a well-controlled engine combustion course of. The long-range check at Andøya follows years of analysis, growth and testing by Boeing and Nammo of ramjet know-how, together with greater than 450 static or short-range exams. The crew continues to develop and mature the know-how, with additional testing and demonstrations deliberate within the coming months.

“It is a historic second for Nammo. The check outcomes reveal that ramjets are viable and may basically change the way forward for artillery. We’ve nice confidence within the ramjet idea. The check – with all points from cannon firing, to the projectile physique, fins, and trajectory all functioning completely – represents an actual technological breakthrough in artillery, and a serious success for Boeing, Nammo, and the U.S. Military,” mentioned Nammo Chief Govt Officer Morten Brandtzæg.


“We imagine the Boeing Ramjet 155, with continued know-how maturation and testing, can assist the U.S. Military meet its long-range precision fires modernization priorities,” mentioned Steve Nordlund, Boeing Phantom Works vp and common supervisor. “This profitable check is proof that we’re making nice progress.”

Illustration exhibiting completely different artillery shell and vary choices. (Photograph by Nammo)

Boeing Phantom Works and Nammo have been working collectively beneath a strategic partnership to collectively develop and produce the subsequent technology of boosted artillery projectiles. In July 2019, the Boeing-Nammo crew was awarded a contract beneath the U.S. Military’s XM1155 program to develop and mature the Ramjet 155 projectile. In Could 2021, the crew was awarded a Section II know-how growth contract. Ramjet 155 makes use of an engine during which the air drawn in for combustion is compressed solely by the ahead movement of the projectile at supersonic speeds. Thought-about a hybrid between guided artillery and missiles, this system has an goal of a typical spherical design that can be utilized in L39 and L58 cannons.

Nammo is a world aerospace and protection firm headquartered in Norway. With greater than 2,700 staff, 28 manufacturing websites and a presence in 12 nations, Nammo is a number one supplier of specialty ammunition, shoulder-fired programs and rocket motors. Be taught extra at

As a number one world aerospace firm, Boeing develops, manufactures and companies business airplanes, protection merchandise and area programs for purchasers in additional than 150 nations. As a high U.S. exporter, the corporate leverages the abilities of a world provider base to advance financial alternative, sustainability and group influence. Boeing’s numerous crew is dedicated to innovating for the longer term, main with sustainability, and cultivating a tradition primarily based on the corporate’s core values of security, high quality and integrity.

The ramjet motor ignition can be clearly seen, as the projectile picks up speed after being launched from a cannon.
The ramjet motor ignition may be clearly seen, because the projectile picks up velocity after being launched from a cannon. (Photograph by Nammo)