Momentus Inc. completed the Preliminary Design Review (PDR) for its Vigoride 8 orbital service vehicle on April 29, 2026. The fully booked flight will carry the Spaceworks COSMIC payload and NASA’s Juno Rotating Detonation Rocket Engine (RDRE) payload, and the PDR confirms that the mission design meets all technical requirements and is ready to move into detailed development.
The PDR milestone keeps the launch schedule on track for early 2027 under two NASA contracts and demonstrates Momentus’s ability to deliver complex, multi‑payload missions. The Vigoride platform, which uses a proprietary water‑plasma propulsion system, is the company’s core offering for satellite transportation, hosted payload support, and in‑orbit servicing.
Senior Vice President of Engineering and Operations Tom Malko said, ‘The successful completion of the Preliminary Design Review reflects the strength of our engineering team and the close collaboration with our customers. Vigoride 8 is a complex, fully booked mission, and this milestone confirms that our design is sound and ready to advance into detailed development. We’re proud of the progress and excited to keep driving toward launch.’
Momentus has faced significant financial headwinds, reporting large losses and a declining stock price, but analysts forecast profitability for the current year and a 148 % revenue growth forecast. The company’s financial statements show that external funding has been the primary operating mechanic, with R&D‑heavy losses overwhelming gross margins. The PDR completion is therefore a critical step toward generating future revenue and strengthening the company’s credibility with government customers.
Beyond the immediate mission, Momentus aims to leverage its water‑propelled vehicles to open new revenue streams from hosted payloads and in‑orbit servicing, and to secure additional NASA and Space Development Agency contracts. The successful PDR positions the company to pursue further opportunities in the growing space services market, while the company continues to navigate its financial challenges.
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