
Merlin
Merlin family powers first and second stages, with sea-level and vacuum variants.
Link Confirmed
Launch vehicle · Space
SpaceX orbital launch vehicle powered by the Merlin engine family.
by SpaceX · Unveiled Sep 8, 2005
SpaceX announces Falcon 9
SpaceX publicly announced the Falcon 9 launch vehicle in a September 8, 2005 press release, describing it as an upgrade of the planned Falcon 5. Falcon 5 is treated as a separate design, not a designation the product kept.
Solid entries are confirmed, outlined reported, dashed estimated or still to come; dotted italic entries are speculative. Dates show only the precision the sources give.

Merlin family powers first and second stages, with sea-level and vacuum variants.
Link Confirmed
NSSL Phase 3 Lane 1 task orders (Jul 2026): $1.6B (rounded) for 18 Falcon 9 launches; $1,600,000,000 / 18 = $88.9M per launch (division by us).
Unit costs and contract unit prices for this product, and budget figures for the programs that buy it. Each figure states its dollar basis and links its source; contract values are under Programs & awards.
Space Systems Command · Jul 29, 2026 · Supports: Cost · amount
“The task orders, awarded to SpaceX for a total of $1.6 billion, assure 18 Falcon 9 launches in support of the Space Based Sensing and Targeting (SBST) portfolio.”
SpaceNews (SpaceX press release) · Sep 8, 2005 · Supports: System milestone
“El Segundo, CA – September 8, 2005 – SpaceX today announced its new launch vehicle, the Falcon 9, an Evolved Expendable Launch Vehicle (EELV) class vehicle.”
NASA · Supports: System milestone
“SpaceX successfully launched its Falcon 9 spacecraft on June 4, 2010”
SpaceX · Supports: System, System · system component:merlin
“10 Merlin engines (Falcon 9) or 28 engines (Falcon Heavy)”
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