Fleet Strategy: A Foundry and a Fleet
Kronos runs two populations: a foundry of breeders that make fuel and materials, and a fleet of burners that make power; L7 coordinates them as one system.
Two populations, one strategy
The Kronos fleet is not one kind of machine replicated; it is two populations with a supply relationship. A foundry of breeders (Hyperion units) produces tritium, helium-3, and neutron services. A fleet of burners (Aegis and MetroVolt housings) consumes helium-3 to produce firm power. L7 fleet strategy coordinates both as one coupled system, because the burner fleet's fuel comes from the breeder foundry.
FOAK to NOAK to BOAK
The breeder foundry grows through learning generations: first-of-a-kind (FOAK), then next-of-a-kind (NOAK), then best-of-a-kind (BOAK). Each generation inherits the validated models, spares commonality, and operating experience of the prior one. L7 tracks which generation each unit belongs to, because generation determines its expected performance envelope, its spare-parts pool, and how much its data should update fleet models.
- Breeder foundry: FOAK first tritium ~2030, then NOAK, then BOAK units
- Burner fleet: enrolled as helium-3 supply and validated performance allow
- Coupling: burner growth gated by breeder (and later lunar) helium-3 supply
- Shared: models, spares pools, and operating experience across each generation
The coupling is the strategy's honest constraint. A burner fleet cannot grow faster than helium-3 supply, and helium-3 supply is set by the breeder foundry's output and allocation. L7 encodes this so fleet plans are always fuel-consistent: the burner population in any plan is bounded by projected helium-3, never assumed.
Fleet strategy is expressed in physical and reliability terms only: how many units of each population, at which generation, with what firm-power and isotope-production capability, gated by fuel and validated performance. No economic figure enters the strategy at this layer.
Today the fleet is a plan and a set of design-stage units in the twin. Construction of the first breeder begins Q2 2027; FOAK first tritium is targeted ~2030; the burner fleet follows as fuel and validation permit. No net-gain or fleet-scale claim is made ahead of that hardware.