Venus Aerospace Secures $91 Million for 3D Printed Rocket Engine

Venus Aerospace, a company focused on developing a high-thrust rotating detonation rocket engine (RDRE) that utilizes 3D printing, has successfully closed a $91 million Series B financing round. This funding is earmarked for the company's subsequent development and production phases, aiming to bring its RDRE propulsion system closer to deployment for various defense and space applications.

Last year, Venus Aerospace reportedly conducted what it believes to be the world's first successful flight test of an RDRE. This engine design features a combustion chamber where a continuous supersonic detonation wave rotates, which Venus claims boosts efficiency by 15% and offers greater payload flexibility. The RDRE is constructed using 3D printed components and standard materials, with an emphasis on enabling domestic manufacturing at scale and reducing reliance on foreign parts.

The company states that the RDRE is designed for reusability and throttleability, incorporating a common propulsion architecture suitable for multiple mission types. Potential applications cited by Venus include munitions, space launch vehicles, orbital transfer, and lander systems. Sassie Duggleby, co-founder and CEO of Venus Aerospace, highlighted the financing as a crucial step in transitioning from demonstration to scaled capability, emphasizing the need for reliable, domestically produced propulsion systems for defense and space sectors.

The investment round was led by Mercury Fund and included participation from Lockheed Martin Ventures, MESH, PEAK6, Draper Associates, Starboard Star Venture Capital, and Green Sands Equity. Lockheed Martin Ventures, in particular, noted Venus' rapid technological progress and its focus on manufacturing speed, cost management, and supply chain resilience as reasons for reinvestment.