Engine Family

One architecture, scaled across every mission class.

The F1 Nova family extends the Prime standard into a coherent lineup of derivatives — each tuned to a thrust band and mission profile, all sharing a common methane FFSC lineage. Thrust bands are presented at a conceptual class only.

Lineup of four F1 Nova engine derivatives of increasing size
The Lineup

Derivatives, not compromises.

Each member inherits the program's cycle and design discipline, then specializes for its role. No proprietary specifics are shown — only intended class and use case.

Heavy-Lift Core

Nova Prime

2.5M lbf class

The flagship sea-level engine. The reference architecture from which the family derives its cycle, materials, and design language.

Heavy-lift boostersClustered first stages
Medium-Class

Nova Medium

Intermediate thrust band

A scaled derivative for medium-lift vehicles — retaining the FFSC cycle at a thrust class suited to more compact stages.

Medium-lift launchersUpper booster stages
Vacuum-Optimized

Nova Vacuum

Upper-stage class

A vacuum-optimized variant with an extended expansion profile, tuned for efficient operation beyond the lower atmosphere.

Upper stagesOrbital insertion
Sea-Level Compact

Nova Compact

Compact thrust band

A compact sea-level engine for smaller vehicles and dense clustering, prioritizing footprint efficiency and manufacturability.

Small-lift vehiclesDense clusters
Experimental AI-Geometry

Nova AX

Research line

An experimental line where AI-optimized geometry is pushed furthest — a proving ground for the next generation of the family.

Advanced researchFuture compatibility
Conceptual Thrust Bands

Relative positioning only. Values are intentionally abstract and do not disclose program specifications.

Nova Compact
Nova Medium
Nova Vacuum
Nova Prime
Nova AX

Understand the engineering philosophy behind the entire family.

Technology Philosophy