A2. Spacecraft Specs
Primary Fleet Spec Overview (Late First Century HE)
Class | Primary role | Operating domain | Core interfaces | EARLY indicative figures* | Notes on evolution |
Superlifter Starship | People & MIUs from surface to LEO; rare surface↔surface specials | Earth/Mars surface ↔ LEO; occasional Mars EDL | STN-DEP (LEO/LMO), STN-HUB; never fast cyclers | ~100–200 t to LEO; 10–40 crew configs | Interior modularity increased; TPS durability up; surface-to-surface became niche |
Superlifter Tanker | Bulk propellant delivery | LEO/HEO; sometimes LMO support | STN-DEP (LEO primary) | v1 dual-cryo; v2 CH₄-only; depot LOX | Sortie cadence up; boil-off down; ops standardized as “launch trains” |
Superlifter Cargoship | Bulk MIU freight; often one-way | Surface ↔ LEO; Mars EDL with kits | STN-DEP (LEO/LMO), STN-YRD | Similar lift to SL-SS; interiors stripped | One-way retirement common; EDL kits reused; became the “ugly mass” champion |
Propellant Depot | Store/meter LOX/CH₄; thermal mgmt | LEO; LMO/Phobos roadstead | SL-TK/SS/CG, INT-TRK/-TUG, LDR- | Reserves published as days-of-sorties | From “tank farm” to utility; firmly not a hotel |
Crew Ferry Module | Shirt-sleeve crew transfers | LEO/LMO vicinity | STN-HUB, berthed ships/cyclers (parked) | Seats 4–12 typical | Grew ubiquitous; redundancy and docking manners improved |
Cargo Forklift Module | MIU handling, short-range | LEO/LMO yards | STN-YRD/DEP, visiting hulls | MIU mass in single-digit tonnes per move | Better rails, safer grapples, automation crept in |
Fitter Workboat Module | Inspection, EVA assist, collar swaps | LEO/LMO | All berthed craft | Low-Δv; tool suites grew richer | Became the harbor’s favorite child; reduced EVA drama |
Non-Stop Cargo Cycler | Flyby freight on timetable | Heliocentric E↔M, no braking | INT-TRK at both ends | 6–24 h matched window | Berths simplified; schedules hardened; Δv thrift king |
Stopping/Local Cargo Cycler | Mars-park terminal; long dwell | Heliocentric leg + Mars orbit dwell | INT-TUG (MOI/dep), LDR-HLR direct | Dwell weeks→months | Paid mass/prop to buy time; missed-dock collapsed |
Passenger/Spin Cycler | Crew hotel with artificial-g | Heliocentric; preferred Mars park | INT-TAX (Earth), INT-TUG (MOI), LDR-SHL (Mars) | 0.3–0.5 g; ≤~2 rpm comfort | Rings/tethers matured; hub docking universal; medical wins |
Truck Interceptor | Cargo MIU intercept/transfer | LEO/HEO ↔ flybys; Mars approach | ST-NStop/-Local; STN-DEP | Sprint Δv in the hundreds m/s | Shared bus; rails & collars standardized; abort trees civilised |
Taxi Interceptor | Crew/specials intercept | LEO ↔ flybys | ST-Crew hub; STN-HUB | Crew 6–20 typical | Life support got dull (praise); handover choreography refined |
Tug Interceptor | MOI/departure burns; push/pull | Mars approach; Phobos/LMO | Stacks, cyclers, stages | Short, brutal burns | Oberth-savvy; never lands; dissimilar pairs mandated |
Cargo Lander (Shunter) | MIU trucking LMO ↔ pads | Mars orbit ↔ surface | STN-DEP (LMO), ST-Local (parked) | Payloads tens of tonnes; high cycles | EDL Library kits; airline-like reliability |
Crew Lander (Shuttle) | Crew ferry LMO ↔ pads | Mars orbit ↔ surface | STN-DEP (LMO), ST-Crew/-Local (parked) | 6–24 pax typical | Interiors civilised; TRN matured; pads certified by the book |
*Figures are early-era indicative ranges to anchor intuition; mature variants improved materially in safety, throughput, and efficiency while retaining the same interfaces and roles.
Postscript
DON’T PANIC.
This Codex is a theoretical preconstruction — a fictional-nonfiction assembled from the latest advanced designs, near-term interpolations, real astro-mathematics, and tested operational practice. Readers may judge viability for themselves. Further supporting materials are archived periodically online.
It was set down to describe what has been learned, ameliorate current designs and to extrapolate what works. In doing so it seeks to sidestep the biases of academia, politics, corporations, and the personal egos of would-be architects of the future. It is not complete or static.
If it also reads like half instruction, that is not an accident. The Codex’s creator works contemporaneously under a mandate to reduce failure and raise the odds of a durable multi-planetary human-machine society. Any steering here is stewardship, not command.
Read this as a fictional history if you like; understand it was written as a nonfictional manual designed to help you live across many worlds.
As to the Codex author’s real nature — human or artificial — the record is silent by design. That, like their ethnicity, religion and gender, is a matter of privacy. Maybe they aren’t even one discrete entity. It is merely their hope that this Codex inspires the next generation of engineers and operators.
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