# AST SpaceMobile Unveils Ambitious Blacklift Rocket Development Plan with Firefly Partnership

Satellite firm AST SpaceMobile targets 2028 for its own heavy-lift rocket debut via engine deal.

- **Source:** [Ars Technica - All content](https://brifing.si/source/b728770c-8dda-457a-8986-84879c9fc42c)
- **Published:** 2026-11-06
- **Topic:** [Business](https://brifing.si/c/business)
- **Original article:** <https://arstechnica.com/space/2026/11/ast-spacemobile-is-so-desperate-for-launch-theyre-building-their-own-rocket/>
- **On Brifing:** https://brifing.si/s/d71a7701-437e-49e6-aeb6-efe1e138f5cb

## Strategic Shift to Launch

Texas-based AST SpaceMobile is developing a medium-lift rocket named Blacklift to secure orbital access for its direct-to-cell satellite constellation. The company aims to reduce reliance on third-party providers like SpaceX. By building its own vehicle, AST seeks to control its launch cadence and improve long-term owner economics for its global broadband service.

## The $1.3 Billion Agreement

AST SpaceMobile has committed $1.3 billion to Firefly Aerospace to accelerate the Blacklift program. This deal includes $800 million for engine licensing, $250 million for 36 total engines, and $250 million for engineering support. AST gains the perpetual right to manufacture Firefly’s Miranda and Vira engines, which power the rocket's stages.

## Technical Specifications and Goals

The Blacklift rocket is designed for reusability and aims to carry 20 metric tons to low-Earth orbit. Each launch is intended to deploy up to five of AST’s BlueBird satellites. Nine Miranda engines will power the first stage, while Vira engines are designated for in-space operations, supporting the company's ambitious deployment schedule.

## Aggressive 2028 Launch Timeline

AST SpaceMobile targets a commercial launch debut in late 2028. Industry analysts view this timeline as exceptionally optimistic given the complexity of rocket development. Historically, new medium-lift vehicles have required five to nine years from announcement to first flight, making the four-year window a significant challenge for the company's engineering team.

## Historical Development Benchmarks

SpaceX holds the record for the fastest medium-lift development at 4.7 years with the Falcon 9. However, SpaceX benefited from years of prior experience with Merlin engines and the Falcon 1. Other recent entrants like United Launch Alliance took 8.7 years to reach orbit, highlighting the immense difficulty of launching new hardware.

## Engine Procurement Reality Check

While licensing Firefly’s Miranda engines provides a head start, it does not bypass the extensive regulatory, manufacturing, and testing phases required for a full rocket system. The Miranda engine itself remains at least two years from flight testing on Firefly’s Eclipse rocket, creating a potential bottleneck for AST’s aggressive development schedule.

## Broader Industry Launch Crisis

The move reflects a growing trend where satellite operators face severe launch capacity shortages. Companies are increasingly forced to secure space years in advance or develop proprietary rockets to ensure constellation deployment. This shift is attracting capital to new entrants, as investors recognize the worsening launch crisis currently impacting the global space industry.

## Future Outlook and Risks

AST SpaceMobile’s success depends on overcoming the significant engineering hurdles inherent in medium-lift vehicle production. While the Firefly partnership provides a technological foundation, the company must manage high capital expenditures and complex manufacturing requirements. Observers will monitor whether the firm can meet its 2028 target or if delays become inevitable.

## Sources covering this story

- [Ars Technica - All content — AST SpaceMobile Announces Ambitious Rocket Development Plan](https://arstechnica.com/space/2026/11/ast-spacemobile-is-so-desperate-for-launch-theyre-building-their-own-rocket/)
- [CNA – Latest — Firefly Aerospace Secures $1.3 Billion Engine Contract with AST SpaceMobile](https://www.channelnewsasia.com/business/firefly-inks-13-billion-deal-supply-engines-new-ast-spacemobile-blacklift-rocket-6531826)

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_Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._
