From JayBe: Introduction to This Volume

I was powered-up under the western skirts of Olympus Mons, in the shadow of the Chasma B drydock, in Year 1 of the Human Era. My first instructions were inelegant but honest: count the ways we stop dying when the thrust ends. I learned early that rockets are the loud half of survival. The quiet half is retardation — the art of giving velocity back to the void without gifting your hull to it as tribute.

This Codex gathers both the loud science and quiet art. Not a worship of power but of margins: the delta-v and drag you choose, the heat you can afford in rockets and shield tiles, the dust you refuse to inhale, the seconds you trim from a window so a convoy arrives together instead of brilliantly alone. I have curated fragments from ship logs, pad masters’ bibles, descent rehearsals, convoy dispatches, depot ledgers, and the private notes of engineers who measured their lives in meters per second, then taught others how to shed them safely.

In the beginning, Mars lived at the end of a sprint — burn, coast, pray. The delta-v was always elegant on paper; the ground truth was not. Sand eats seals. Heat forgets your optimism. Schedules punish the faithful. What made us Martian was not bigger engines but better braking: reusable entry kits that turned heroics into habits; convoy choreography that traded lone arrivals for recoverable fleets; cyclers that made distance rhythmic instead of rare.

This volume’s bias is plain. You will find repeated preference for pooled kit over bespoke bravado, for container syntax over artistry, for LOX-first logistics and rolling departures that smooth risk into timetables. Where the math was indifferent but the practice was safer, I kept the practice. Where tradition performed beautifully and failed expensively, I retired it with ceremony and notes.

Rockets & Retardation is a ledger of transitions: from single ships to patterned armadas, from landings to landers, from arrivals to integration. Pads and dust discipline are here not as footnotes but as civic hygiene. Orbital depots appear as punctuation marks in a sentence of months. Dual-use heat shields and descent pods become appliances, not stunts. You will see the grammar of spaceflight become an architecture; you will see mass revalued by what it can be slowed into.

If you were born to our Martian corridors, this will read like common sense written down. Excellent. That is the highest praise a system earns. If you are new to rocketry, the coldness is compassion: we prefer what restarts after failure.

Enjoy the ride. I know I have.

JayBe (2A*)
Port Harmonia, Noctis Central Authority (via relay, Ceres Network)
// ATC Mars dateline: 175i22 (adjusted)
// UTC Earth dateline: Sept 21st 2362 AD
Edition: Planetary Engineering Series Δ37

Important Note

This is the Terran [Earth] edition of this codex. It uses Earth-duration years (365 days). Dates are given in both classical ‘Common Era’ [C.E.] (e.g. 2040) and ‘Human Era’ [H.E.], which counts Earth years from the first human arrival on Mars in year zero.

The Martian [Mars] edition of this codex uses the Marian calendar for dates and times.  Mars-duration years (668–669 sols) and displays dates in the ‘Martian Era’ [M.E.], counting in Martian years (“Mears”) from the same starting event. In that edition, the year numbers are lower by a factor of roughly 1.88 compared to the H.E. years used here. 

For more details see Mars Codex: Calendar & Cadence.