Firefly Aerospace announced an agreement with AST SpaceMobile on November 6, 2026, valued at more than $1.3 billion. The package includes 36 rocket engines, an intellectual-property license and engineering support over three years. The headline therefore describes a bundle of deliverables, rather than a quoted price for engines alone.

Conceptual illustration of three planning cards beside a generic rocket engine silhouette and a purchasing notebook.
Conceptual illustration of three planning cards beside a generic rocket engine silhouette and a purchasing notebook.

Read AST’s separate amounts

AST SpaceMobile’s company-issued announcement provides a breakdown: approximately $800 million in upfront license consideration, $250 million for engines for its first three rocket launches, and $250 million for engineering support over three years. Keep each amount attached to its description. The license consideration includes cash and shares.

Those rounded components total about $1.3 billion. Preserve the different precision in the announcements: Firefly uses more than $1.3 billion, while AST labels the license amount approximately. Rounded headline figures do not supply an exact transaction reconciliation.

Why dividing by 36 gives the wrong label

Dividing $1.3 billion by 36 gives approximately $36.1 million. The arithmetic is straightforward, but calling that result the price of one engine would allocate the whole licensing and support package to the engine count. It would change what the numerator represents.

Firefly identifies the delivery mix as 27 Miranda engines and nine vacuum-variant Vira engines. Even a ratio using only the delivery allocation would be a blended calculation across that mix. It would not establish a separately quoted price for either model.

Try a fictional purchasing example

Imagine an unrelated supplier offers a fictional $120 million package containing six machines, a production license and support. Its worksheet assigns $60 million to licensing, $24 million to support and $36 million to the machines. Dividing the whole package by six gives $20 million per machine slot; dividing the hardware allocation by six gives $6 million.

Both divisions are mathematically valid. Only the second uses the fictional hardware allocation, and even that average does not describe the price of every machine if the six units differ. These invented figures are a teaching example, not additional terms of the Firefly–AST agreement.

Keep a short disclosure worksheet

  • Record the total package value with its original qualifiers.
  • Separate the license, delivered hardware and service amounts.
  • Retain payment form and timing beside the relevant component.
  • Label any calculated average by the exact amount and quantity used.

Read the bundle correctly

Sources

Firefly Aerospace: November 6 agreement announcement

AST SpaceMobile: November 6 company-issued announcement, Business Wire syndication