Propulsion Shift: Venus Aerospace Strikes $91M for RDRE Scaling
Venus Aerospace has secured $91M in Series B funding to transition its Rotating Detonation Rocket Engine from flight-testing to mass production for defense and commercial sectors.
Hardening the Kill Chain
Venus Aerospace has finalized a $91M Series B funding round to industrialize its Rotating Detonation Rocket Engine (RDRE) technology. According to Payload, the round was led by Mercury Fund with participation from Lockheed Martin Ventures and a syndicate of heavy-weight investors including MESH and Draper Associates.
The Thermodynamics of Efficiency
The capital injection follows a pivotal May 2025 milestone where Venus became the first U.S. firm to complete a successful RDRE-powered flight test. Unlike traditional combustion, RDREs utilize a continuous supersonic detonation wave to process fuel. This architecture provides a 15% boost in efficiency over conventional chemical rockets.
Venus utilizes a liquid propellant mix of JP-10 and hydrogen peroxide. This choice avoids the boil-off issues associated with methalox and enables stable storage for over a decade—making it a viable long-term strategic asset. For defense applications, it offers a throttleable alternative to solid rocket motors, potentially doubling the maximum flight range of current missile and interceptor systems.
Scaling the Architecture
As CTO Andrew Duggleby noted to Payload, the immediate objective is securing major defense and commercial contracts to move into low-rate production. Current targets include:
Military: High-speed propulsion to replace aging solid-fuel architectures.
In-Orbit: Second and third-stage propulsion for orbital transfers.
* Aeronautics: Integration with ramjets for hypersonic aviation.
With competitors like Stellar Alpina and JAXA also racing toward RDRE maturity, the $91M Series B positions Venus to lead the transition from academic theory into industrial-scale hardware.