Aegis Station Logistics Program

Lunar Tanker
Fleet The Supply Chain for Space

45 autonomous tankers. 3.3 million metric tons. A continuous cycle of ascent, delivery, and return — building humanity's first orbital city one payload at a time.

45
Tankers
2,025
MT / Day
4.5 YR
Fill Timeline
// 01 Fleet Render
Lunar Tanker Fleet — MK1 Loaded Configuration on Lunar Surface
FIG. 01 — LTF-MK1 Loaded Configuration, Lunar Surface — Water Cartridge Mounted LTF-RENDER-001
// 02 Mission Profile
01 — PRIMARY

Orbital Lift

Surface-to-LLO water delivery to Aegis Station shield reservoirs. Fully autonomous operations across continuous 2,600 m/s ascent-and-return cycles.

02 — EXTENDED

Surface Distribution

Ballistic surface hops between ISRU nodes for LOX and water redistribution. 160–940 m/s per hop — up to 6× sorties per orbital propellant load.

03 — POST-FILL

Depot Resupply

After shield completion, the fleet transitions to permanent orbital logistics: LLO depots, EML1/2 hubs, and propellant staging for deep-space missions.

04 — EMERGENCY

Rapid Response

1–2 tankers maintained in standby at all times. Emergency water delivery to crewed outposts achievable within 6–8 hours of dispatch authorization.

// 03 Vehicle Specifications

Ascent Performance

Payload 45,000 KG
Launch Mass ~102,000 KG
Δv (Ascent) 2,600 M/S
Isp (Vacuum) ~360 S
Propellant Mass ~52,000 KG
Thrust Required ~165 KN

Propulsion & Structure

Propellant LOX / CH₄
Engine Config 3×60 KN
Tank Cartridge 49 M³
Dimensions 10 M × 2.5 M
Return Δv 1,800 M/S
Round-Trip Propellant ~57,000 KG

Fleet Operations

Fleet Size 45 VEHICLES
Daily Throughput ~2,025 MT
Fill Target 3.3M MT
Timeline ~4.5 YEARS
Missions / Vehicle / Yr 60–100+
Operation Mode AUTONOMOUS

Reusability & Systems

Round Trips 100+ CYCLES
Landing System VTOL
Power SOLAR + BATT
Delivery Cost Est. ~$150 / KG
Total Mission Cost ~$495B
Architecture KISS PRINCIPLE
// 04 Surface-to-Surface Operations
S2S vs Orbital Δv
More hops possible per propellant load. A 300 km surface transit requires only ~460 m/s — versus 2,600 m/s for a full orbital ascent.

The LTF tanker requires no structural redesign for surface-to-surface operations. Its VTOL architecture and LOX/CH₄ propulsion are inherently suited to ballistic hops between ISRU nodes — ascending on a near-vertical vector, coasting at low altitude, and performing a precision landing at the destination pad.

This capability transforms a collection of isolated extraction points into an integrated logistics network, allowing surplus LOX and water to flow to nodes in deficit rather than being vented or stockpiled past capacity.

Scenario 01

LOX Surplus Redistribution

High-yield nodes producing excess liquid oxygen redistribute to nodes in deficit. Delivered LOX feeds directly into tanker refueling operations at the destination, creating a shared propellant pool across the network.

Scenario 02

Emergency Water Resupply

ISRU extraction failure at a crewed outpost triggers autonomous dispatch from the nearest surplus node. First delivery achievable within 6–8 hours — no crew or operator action required at the origin site.

Scenario 03

Forward Base Pre-Positioning

New exploration outposts 900+ km from the nearest ISRU hub receive propellant caches via a series of surface hops, establishing operational independence before local production comes online.

Scenario 04

Routine Inter-Node Exchange

3–5 tankers operate in dedicated S2S rotation, executing scheduled monthly rebalancing of LOX and water inventories across all active nodes under autonomous dispatch control from Aegis Station.

// 05 Propellant Architecture
Phase 1 Propellant
LOX / CH₄
Proven architecture. LOX sourced locally via ISRU electrolysis. Methane imported from Earth during shield fill.
Phase 3 Target
LOX / LH₂
Both propellants produced locally from lunar water. Isp 450s — 25% higher performance. Zero Earth import dependency.
Break-Even vs Imports
6–18 mo
Infrastructure investment recovered against methane import costs within the first 18 months of LOX/LH₂ operations.

The Moon has abundant water ice. Electrolysis splits that water into liquid oxygen and liquid hydrogen — the two highest-performing chemical propellants available. The LTF's ISRU nodes are already producing both as a consequence of the shield-fill operation itself. LOX feeds directly into the current propulsion system. Hydrogen has been the missing piece.

The missing piece is now on a credible engineering path. Blue Origin's Lunar Permanence team has demonstrated zero boil-off storage of liquid hydrogen at 20K — the temperature at which LH₂ must be maintained — at twice the performance of the previous state of the art. Active cryocooling powered by the node's solar and fission power supply keeps propellant cold indefinitely, with no boil-off losses.

The program consequence is significant: rather than importing methane from Earth on every resupply cycle — a permanent, compounding dependency running into the tens of billions annually at fleet scale — the LTF transitions to a fully closed propellant loop. Water in, LOX and LH₂ out. No Earth supply chain. No launch-dependent consumables. A logistics system that is genuinely autonomous.

Phase 01
Years 0 – 2
LOX / CH₄

Fleet operates on proven LOX/CH₄ propulsion while LUNET nodes are built to the full 50 kW power specification. Methane import costs are accepted during this period as the cost of mission reliability. Cryogenic and fission infrastructure is commissioned in parallel — not retrofit later.

Phase 02
Years 2 – 3
Transition

Node cryocoolers and LH₂ storage come online. Tankers are qualified for liquid hydrogen service. The fleet transitions progressively — early vehicles flying LOX/LH₂ missions as nodes are certified, methane imports tapering as the conversion progresses across all six LUNET sites.

Phase 03
Year 3 → Post-Fill
LOX / LH₂

Full fleet operates on locally produced propellants. Zero Earth import dependency. The higher Isp of LOX/LH₂ reduces propellant mass per mission, increasing payload fraction and compressing the remaining fill timeline. Post-fill, the same fleet serves Aegis Station depot and surface logistics roles indefinitely.

Enabling Technologies
Blue Origin Zero Boil-Off (2× SoA)
Turbo-Brayton Cryocooler — 20K LH₂
NASA Kilopower Fission — Lunar Night Power
50 kW-Class Polar Solar Arrays
LOX/LH₂ Co-Storage Thermal Architecture