【Factorio】Rocket Launch: Step-by-Step Guide and Required Materials

After automating purple and yellow science and feeling like "the rocket is within reach," the moment you build the silo, copper plates and crude oil vanish in an instant, forcing you to reconfigure your entire factory's wiring and ratios. This wall stops a significant number of players.

This article helps players launching rockets for the first time in Factorio by clarifying the key difference between 100 components in Vanilla and 50 in Space Age, then walking through the entire process from research through silo construction, component production, payload decisions, and launch in a reproducible sequence.

You'll also see the total quantities of major materials and raw inputs needed for Vanilla, making it clear where to reinforce first: circuit boards, lightweight components, or rocket fuel.

On your first run, whether to mount a satellite, or in Space Age whether to prioritise space platform payloads, is broken down by situation. This content suits anyone who wants to avoid the failure of rushing with "should be able to go now" only to watch your factory starve.

【Factorio】Rocket Launch Prerequisites | Differences Between Vanilla and Space Age

Identifying Your Game Version

Before reading launch conditions, it helps to separate whether your save is Vanilla or Space Age first. Space Age was released as DLC on 21 October 2024, and the in-game meaning of "rocket launch" has changed quite significantly.

There are three easy-to-spot differences. First is whether Space Age is enabled as a DLC in game launch settings or save configuration. Second is the progression path of the tech tree—Space Age brings rocket silo access much earlier. The decisive marker is whether there are space network UI elements for managing orbital logistics and operations. If you're seeing that, you're almost certainly working with Space Age.

The feel is noticeably different too. When I progressed at similar factory scale, the Space Age environment had lighter component demands, and I found myself thinking "wait, launch prep is already done?" far sooner than in Vanilla. If you plan resources using Vanilla assumptions, you often over-invest in Space Age.

比較すると違いはかなり明快です。

自動発射を使う場面もあります。
とくにSpace Ageで宇宙側の要求に応じて物資を回すようになると、毎回手動で飛ばすより自動化したほうが運用は楽です。
ただし、自動リクエストや自動発射は便利な反面、条件を甘くすると必要以上に打ち上げやすいのが難しいところです。
自分も最初は「自動化したから安心」と思っていたのですが、要求量の考え方が曖昧なままだと、地上在庫を想定以上に吸われて詰まりの原因になりました。
便利機能というより、打ち上げ条件を数で管理する仕組みとして扱うと失敗しにくいです。

Rocket Requirements Comparison: Vanilla vs Space Age

The biggest difference is that Vanilla positions rockets as the de facto ending, while Space Age treats them as an entry point to space expansion. Misunderstanding this distinction leads to confusion about what to load on your first launch.

As confirmed on Space Age - Factorio Wiki, Space Age introduces space platforms and new tech trees. Unlike Vanilla's "launch the rocket and call it done," the design here is "this is where space logistics begins."

The comparison is quite stark:

Numbers make the difference even sharper. Vanilla requires 100 rocket components, and by raw volume calculations ロケット部品 - Factorio Wiki, just the primary intermediates total lightweight components × 1,000, rocket fuel × 1,000, and control systems × 1,000. No wonder copper plates and oil lines collapse near the end.

Space Age gets by on 50 components. Half the parts means drastically lower resource strain per launch. Reaching the first launch is far easier, and progression tempo is noticeably faster. That "surprisingly light" feeling comes directly from this gap.

Payload logic splits too. Vanilla debates centre on whether to load a satellite or launch empty. Space Age defaults to chaining into space platform operations, so initial payloads focus on getting the orbital side running. Same "first launch," different purpose entirely.

Space Age - Factorio Wiki

wiki.factorio.com

Terminology: Rocket Silo / Rocket Components / Satellite / Space Science

Cleaner terminology prevents confusion when comparing multiple guides.

Rocket silo is the facility where you assemble and launch rockets. Components don't assemble in your inventory; they stack inside the silo until completion. Easy to miss: removing the silo while components are in progress destroys them. Treating it as temporary before rebuilding means real material loss.

Rocket components are the progress units toward completing a rocket. Vanilla needs 100; Space Age needs 50 stacked before launch is possible. Older materials included rocket control units, but 2.0+ shifts toward control boards. If a veteran video says "mass-produce RCUs," modern versions may need translation.

Satellite is a typical rocket payload. Loading one and launching yields 1,000 Space Science Packs. Conversely, rockets launch without satellites, but you won't get white packs. Satellite materials are solar panels × 100, accumulators × 100, lightweight components × 100, control boards × 100, rocket fuel × 50, radar × 5. Building the satellite right after finishing the rocket body often chokes circuit board lines a second time—that number explains why.

Space Science Pack is the white pack. It doesn't craft normally; satellites on launched rockets produce it. Silos hold up to 2,000, storing two satellite launches' worth, but exceeding that becomes unwieldy. Continuous launches without researching white packs wastes those hard-won 1,000-unit yields.

Nailing these four concepts simplifies the math dramatically: silo is facility, components are progress, satellite is reward-granting payload, science is that reward. Keep just this relation clear, and Vanilla or Space Age rocket mechanics become far easier to track.

Step 1 Toward Launch: Gathering Research and Science Packs

Research Targets by Version (Vanilla / Space Age)

Launch prep starts with running research in your lab. A pretty factory means nothing if the tech tree hasn't reached rocket unlock. Beginners often stumble here: Vanilla and Space Age have different endpoints.

Vanilla is straightforward. The goal is the rocket silo research itself. Rocket Silo - Factorio Wiki shows this as a late-stage tech. Rocket silo research uses every science pack except military, so you need stable supply of red, green, black, blue, purple, and yellow simultaneously. Vanilla essentially means "reaching rocket launch" = completing rocket silo research.

Community sources and some Wikis suggest Space Age unlocks silos earlier (around chemical science), but official patch notes should be your reference for exact unlock stages and version changes. This article assumes "early silo access is commonly documented in Space Age."

Tactically, clear difficult prerequisites first. Key techs are oil refining expansions, advanced refining, circuit boards, control boards, lightweight components, rocket fuel research. 2.0+ pivots from rocket control units toward control boards; old playthroughs saying "mass RCU production" fit better when you prioritise circuit board infrastructure. Modules come later, but early investment in power and intermediates beats end-game surprises.

In my experience, guessing launch readiness from the tech screen alone misfires. Purple and yellow running non-stop is a better milestone than research names. Tech-tree access doesn't equal "ready to launch"—the factory often gasps the moment silo building starts. That's "unlocked stage," not "launch-ready state."

Rocket Silo - Factorio Wiki

wiki.factorio.com

The Purple/Yellow Automation Pitfall

The real late-game wall isn't the tech tree's end but rather running purple and yellow science stably and continuously. After clearing that hurdle, you feel like you're on the winning path—only to watch rocket materials tank the same intermediates.

The worst bottlenecks are circuit boards, lightweight components, and rocket fuel. Yellow science demands circuit boards and lightweight components heavily, and the rocket itself scales the same. Raw figures show research lines alone won't cut it; research and rocket fabrication running simultaneously starve copper plates, plastic, sulphur, and light oil all at once. That's why the factory stumbles right when rocket production kicks off.

I've hit this wall many times. Purple and yellow seemed stable; silo research started, and I thought "this is the home stretch." Then copper vanished. Digging into it, research and rocket production competed for the same refinery output. Splitting research oil from rocket-material oil made the line flow so much smoother. It's a raw-numbers split with real impact—assigning different refineries to different roles is a game-changer.

Space Age triggers this trap earlier because silo unlocks sooner. Component demand is lighter, but that doesn't eliminate intermediate ramp-up. "Looks launchable" arrives earlier, yet your production base hasn't caught up to the early unlock, causing supply fragility. Vanilla feels late-game crunch; Space Age feels early-stage scarcity. Both need buffer.

Pre-Launch Research Checklist

Judge research readiness by supply stability, not tree milestones. Few items matter, but all hit the wall hard:

First, determine your purple/yellow SPM target. You don't need exact precision here, but vagueness leads to sudden supply failure. Research speed tracks ingredient flow, not just lab count—design intent matters before silo.

Second, check research lab count against supply. More labs eating empty buffers just adds idle time. Feed them or they don't work faster. Dedication is key.

Third, confirm oil refining and processing headroom. Advanced refining helps, but yellow science, circuit boards, and rocket fuel all hit crude oil simultaneously. Processing bottleneck shows up fast. Check free space for more refineries, extra crude intake, separate research oil from production oil.

Finally, ensure power infrastructure absorbs rocket phase. Purple/yellow automation swells assembler and chemical plant counts, and power dips halt everything. Power shortage means research dips and rocket stalls—easy to misdiagnose. Late-stage power needs are real.

Boil it down to four points:

• Purple/yellow science has a defined SPM target
• Lab count and pack supply are balanced
• Oil refining and processing have expansion margin
• Power grid handles additional chemistry and circuit demand

If, looking at the factory post-purple/yellow, science flows, circuit boards don't stutter, and oil isn't maxed out, you're in solid shape. If any one limit appears, silo phase compounds it. Real readiness isn't silo unlock—it's having room to grow after running science well.

Step 2 Toward Launch: Building the Silo and Producing Components

Once rocket silo research completes, you shift from "just unlock it" to running the silo as a giant dedicated factory wing. Unlike normal assemblers, rocket components only complete inside the silo. You mass-produce lightweight components, fuel, and control materials outside, ferry them via belt or logistics, and let the silo stack them into components. Looks quiet, but it's a heavy load—and rough logistics surface immediately.

Silo Placement, Power, and Logistics Hookup

Placement seems flexible but proximity to power lines, oil networks, and intermediate-material routes matters in practice. Main inputs are lightweight components, rocket fuel, and control intermediates. Recent shifts toward control boards from rocket control units mean circuit board load estimates flip if you're copying old designs.

Components feed directly into silo progress. Vanilla shows 1 part = 1% visible progress—so 37 displayed means 37 in, 100 completes it. The display is intuitive; shortages show clearly. Stalling at 97 or 98 reveals the empty supply immediately. Almost always, an external line choked.

Belts or bots work, but silo surroundings need uninterrupted flow, not just passage. Lightweight components crush copper and steel; rocket fuel drains oil reserves; control boards ripple through circuit networks. The math is stark: silo is where end-game materials converge, not a standalone facility. Undersized feeders kill even research-resilient factories.

Operations-wise, production modules in the silo yield huge value. Total demand is massive, so material savings compound. Speed drops, so surround it with beacons and speed modules. Power consumption climbs noticeably—silo launch and power expansion go hand-in-hand.

Setting Up Component Supply

Critical: don't feed three systems in tiny bits; keep all three flowing nonstop. Components only complete in the silo; you can't buffer finished parts outside. Your job ends at stable lightweight-components, fuel, and control intermediates; the silo itself handles the rest.

Vanilla's 100-part requirement stacks visibly. Long stalls at 60% point to a feed-line failure, not the silo itself. ロケット部品 - Factorio Wiki totals show enormous demands—lightweight, fuel, and control intermediates are all crushing, especially copper and oil. Sustained 1% incremental progress beats any burst; the bottleneck isn't peak throughput but continuous drip.

Space Age halves the load—a "long march" becomes a "short, heavy sprint." But lighter total demand doesn't mean fewer intermediate types or easier supply. Silo access arrives while lines are still thin, so you often complete just before stalling on a still-fledgling oil or circuit backbone.

I stabilised my first run by splitting the three supply lines into independent regions: lightweight components, fuel, and control boards as distinct responsibility zones. One main bus chokes on priority. Separate lines let me diagnose "which system stopped?" in seconds. Since silo progress shows 1% increments, it doubles as a diagnostic tool.

Rocket Component - Factorio Wiki

wiki.factorio.com

Demolition Loss and Safe Operation

Here's the sneaky bit: removing the silo mid-progress deletes all interior components**. They don't pop back into containers. Strip at 80%? You've discarded 80 parts. Silo relocation tempts builders, but pre-completion removal is catastrophic.

Rule: once placed, treat the silo as permanent until complete. Belt tweaks, inserter flips, power-pole moves, extra roboports—handle everything outside. Especially avoid "just touching up modules"—that's when it hurts most.

This thinking reverses your starting placement logic. No longer "temporary spot"; you want a semi-final location with generous maintenance space, power expansion margin, and reinforceable periphery. Accidents drop when silo stays rooted and surroundings adapt instead.

Step 3 Toward Launch: Material Totals and Tight Bottleneck Lines

100-Component Total Needs (Vanilla)

Numbers beat instinct here. For 100 Vanilla components, prime intermediates reach 1,000 lightweight components, 1,000 control boards, 1,000 rocket control units, 1,000 rocket fuel. Three visible supply streams conceal huge circuits, oil, and smelting stress behind them.

Raw material scale gets heavier. 100 Vanilla parts demand 49,100 iron, 92,500 copper, 39,000 basic circuits, 7,000 advanced circuits, 2,000 steel. Oil is brutal: starting from 293,519 crude, split into 197,500 petroleum gas, 154,097 light oil, 29,352 heavy oil, 240,370 water. Read ロケット部品 - Factorio Wiki totals and the full-factory demand becomes obvious.

Copper jumps out: 92,500 plates is staggering on paper, and in practice, lines that felt fine during yellow science suddenly constrict. My own moment of clarity came seeing those numbers—one copper belt was fantasy. Tripling copper supply to three belts let circuits and lightweight components breathe, stabilising silo creep massively. Hitting the wall where "one belt won't cut it" is where raw math clicks.

The Three Bottleneck Lines: Circuits / Lightweight / Fuel

Backtrace from the silo's weak point, not from the silo itself. The hardest-hit lines are circuit boards, lightweight components, and rocket fuel—each breaks the factory differently.

Circuit scarcity isn't just "high-tier materials." Copper wires, advanced circuits, and sulphuric acid drain in parallel, stressing both circuit and chemical streams. One part type hides heavy copper draw and consistent oil-byproduct demand. Control shortages in the silo usually root back to wire or sulphuric acid shortfalls, not direct control scarcity.

Lightweight components are equally treacherous. Copper plates and plastic consumption are extreme, further crushing copper supply. Copper lines holding yellow science together snap when lightweight mass-production begins. Silo stall at 70% often traces to lightweight copper starvation, not circuit shortage.

Rocket fuel drains refinery surplus directly. Unbalanced light/heavy/gas distribution in your refinery collapses fuel production immediately. Fuel shortage triggers cascading refinery, cracking, sulphur, and plastic failures. Looks like one line, acts like five.

All three lock onto copper and crude oil—that's the shared pain point. Numbers back this: copper 92,500 and crude 293,519 tower above everything else. Vanilla's "not enough" almost always traces to copper or oil.

Scaling Copper and Crude

Strategy flows from the bottlenecks. Copper bleeds both science and rocket, so belt extensions crumble. I often add a dedicated smelter for rocket-phase copper, separating it from the main bus. Clarity beats shared collapse. If ore is far, haul copper plates or ore by train instead of stretching belts.

Oil needs more than extra refineries: new oil wells and efficient cracking balance. Rocket fuel, plastics, and sulphur all hit crude simultaneously. Lopsided output (excess heavy, short gas) strangles the whole refinery. 293,519 crude is massive; treat oil as a dedicated late-stage expansion, not research continuation.

Intermediate buffers help too. Temporary storage chests before silo's final inputs absorb supply ripples. Silo hates stuttering; small buffers keep feed smooth and sustain production even if upstreams wobble. Slack ≠ stockpiling; it's shock absorption.

Math ranking is clear: copper first, oil second, then circuit/lightweight/fuel micro-buffers. Feed these targets and silo progress stabilises visibly. Late-game stalls aren't "not enough materials"—they're lopsided supply distribution. Parse imbalance by number, split lines by type, and smoothness follows.

Step 4 Toward Launch: Loading Payload and Launching

Satellite Materials and Crafting

Post-silo, confusion peaks on what to load. Vanilla permits empty launches, so rushing through is viable if victory screen is the goal. Sustained play rewards satellite loading. One satellite yields 1,000 Space Science Packs. No craft-based white pack exists, so this single decision controls research momentum.

Materials: 100 solar panels, 100 accumulators, 100 lightweight components, 100 control boards, 50 rocket fuel, 5 radars. Lightweight and boards reappear—post-silo factories hit this surprise wall. Silo completion fooled me into thinking "I'm done," then satellite demands slammed my circuit lines again. End-game material weight hit twice.

The return justifies it. One satellite = 1,000 white packs; blank launch = zero. Research-driven playthroughs prefer satellites. Victory-sprint runs launch empty. Splitting strategies cuts confusion cleanly.

Store limits matter: silo holds 2,000 white packs, covering two satellite launches. Beyond that, overflow risks waste. Launching satellites while white pack research idles squanders rewards, so align launch tempo to research consumption.

Space Age First Run: Space Platform Payloads (Note Included)

Space Age repositions rockets, so initial cargo intent shifts. Community guides reference "space-platform-startup loading" (loosely called space platform starter pack in fan circles). This terminology and approach are community-driven; official Wiki and patch notes should verify formal naming and recipes. Here, I discuss "early orbital supply-line setup" as example (official terms require confirmation).

Launch Interface and Auto-Launch Cautions

Operation is straightforward: open silo GUI, place cargo in payload slot, press launch. Simple on paper; beginners jam here assuming "complete automatically launches." It doesn't. You open the silo interface, confirm the load, press the button yourself. Silo doesn't self-optimise.

Vanilla: empty slot → launch proceeds. Satellite → load it, launch proceeds. Space Age: load designated cargo, same flow. Manual confirmation is standard, not auto-magic.

Auto-launch exists. Space Age especially benefits—responding to orbital demand beats manual relay every time. But "automatic" is a condition manager, not a firefighter. Loose settings over-launch, wasting inventory. Treat auto-launch as quantified rule, not convenience. I assumed "automation = fire and forget," then watched planetary reserves tank to thin auto-requests. Reframed as "condition-based dispatch," failures clarified fast.

Silo completion looks final, but cargo strategy and timing decisions follow. Pre-launch cargo clarity erases stalls here.

Design Principles | Why Pre-Launch Overhauls Are Common

The Copper-Heavy Shift

Late-game overhauls happen because demand structure flips at the rocket threshold. Mid-game iron shortages and assembler bottlenecks fade; suddenly copper alone chokes first. Math clarifies: rocket raw-needs favour copper over iron, and two independent copper sinks—lightweight components and circuits—compete savagely.

The trap: a factory cranking purple/yellow assumes silo-phase can eat the same supply. Wrong. Utility science already drains lightweight and control boards, so rocket-phase overlaps create two-front copper wars. Copper plates disappear while iron sits; "end-game copper crunch" is real.

Late-stage design I lean on: copper scarcity warrants a dedicated refit phase, not just scaling. Splitting circuit-bound copper from lightweight-bound copper via distinct supply paths prevents cascading collapse. Infrastructure handles that split; everything else stays untouched.

Oil Processing Overhaul

Another typical overhaul trigger: oil refining squeezes as rocket fuel, plastic, and sulphur-system demands collide. The problem isn't crude scarcity per se but refinery distribution failure and fluid tank stalls creating backpressure. Crude arrives; refinery stalls because heavy oil tanks are full, halting gas production, starving rocket fuel, and choking downstream.

Late-stage oil rework separates heavy→light→gas conversion explicitly, clarifying priority routing. Design doesn't add refineries blindly but restructures paths so fluids never pool. Math backing confirms: rocket scales oil needs massively, so refinery redesign before silo beats panic-tweaking mid-progress.

Research Line Halts as Valid Optimisation

Often overlooked: labs stay on, eating copper and oil even after research wraps. This is a real late-game load drain. Strategic shutdown—flipping power switches or gating ingredients to labs—redirects that budget to rocket lines.

I've done this: kill labs mid-silo-push, watch copper flow to rocket, feel the delivery accelerate. Didn't add machines; just reallocated. Research suspension feels like retreat; it's actually resource rebalancing aligned with current objective.

Restart criteria are simple: once rocket feeds stabilise and silo progresses steadily, flip labs back on. Research is a surplus-resource vacuum; late-game strategy pivots on force-feeding primary goals, not maxing everything.

That's the core of "overhaul timing"—not sprawl, but objective priority reshuffling. Rocket phase demands copper-heavy, oil-light, research-light conditions; pre-silo design assumed distributed demand. One pivot adjusts everything.

Common Failures and Fixes

Launch Button Won't Respond / Locked Out

Biggest early confusion: interior looks complete, exterior says "not launchable," preventing launch. Diagnose fast by checking power, button state, and cargo slot.

Power drain is subtle but typical. Silo runs whilst base browns out; UI shows "nearly done" but interior stalls. Earlier stages run research and oil; silo phase stacks both. Power shortage halts internal assembly, not just the building—completion freezes invisibly. Check power graph.

Button lock arises (especially Space Age) when auto-launch conditions mismatch manual attempt. Setting touch twisted config; manual press hangs because auto-rules forbid it. Open config: silo is silently respectful of impossible conditions. I've had this happen; interior was fine; launch UI was just over-cautious.

Cargo slots send mixed signals. Empty-launch games should require zero items; some setups leave undefined slots, creating "waiting" limbo. Space Age requires explicit planetary demand linking—vague slots halt launch. Diagnose "complete but locked" by hunting UI conditions, not materials. Always payload misconfig or auto-rule contradiction.

Payload Confusion and Correct Loading

Novices conflate launch ability and reward maximisation. Vanilla rockets are launch-able empty. Satellite presence is optional for launch but necessary for white-pack reward. These are separate gates.

Not knowing satellites are optional, players assume "no satellite = can't launch." False. Reward-less launch is valid. Satellites are reward unlocks, not launch prerequisites.

Space Age conflates further. Initial Vanilla intuition ("go empty" or "add satellite") mismatches Space Age's "platform-startup loading" baseline. Vanilla empty-launch doesn't suit Space Age; the platforms demand orbital supply from day one. Vanilla teaches "satellite optional"; Space Age requires "proper initial cargo." Different game states.

Auto-request adds friction. If platforms ask for supplies silo doesn't have, launch sits blocked by unmet conditions. Not broken—misconfigured. Settings transparency matters; unread conditions look like bugs.

Split your understanding: Vanilla: empty = go, satellite = bonus. Space Age: platform-required loading = foundation. These are design points, not bugs.

Silo Demolition and Total Loss Risk

Silo removal while mid-build erases all interior parts. Tear it down at 80%, you've junked 80 parts. Rebuilding costs those materials twice. Casual "reposition it slightly" triggers catastrophic loss.

Once placed, treat silo as permanent until launch. Surrounding tweaks—belt routing, inserter directions, power poles, roboports—absorb all modifications. Infrastructure flexibility is the name of the game.

Reshape your mental model: silo placement isn't "we'll move it later"; it's "semi-final position with adaptable periphery." Design for maintenance access and expansion, not relocation.

Intermediate Bottleneck Spotting

Stalled progress with "enough materials" almost always means one intermediate supply, one stage upstream, ran dry. Copper wire, electronic components, or advanced circuits vanish before end-product boxes fill.

Fix: don't watch final ingredients; trace back one layer and inspect each feeder. "Control short?" → check circuits and sulphuric acid separately. "Circuits slow?" → drill into wire and plastic supply. Rocket demand is heavy enough that one weak upstream staggers everything.

Buffering strategy: stock intermediate feeders (wire, circuits, etc.) more than finished goods. Silo survives if mid-stream buffers soak ripples. Net-level discipline beats final-bucket hoarding; smooth flow beats burst capacity.

Rocket maths reward diagnostic discipline: visible 1% progress displays mean diagnoses are trivial once you know where to look. Master the "skip to the weak link" reflex and you'll solve 90% of stalls in seconds.

Next Steps | White Pack Operation and Space Expansion

Vanilla: Space Science Pack Routine

Post-launch in Vanilla, your task isn't to celebrate—it's to reframe satellite launches as a white-pack production pipeline. One satellite yields 1,000 packs, so "can I launch?" becomes "can I feed white-pack research continuously?" I thought silo completion was a stopping point; turns out I needed to redesign labs and supply lines for white-pack throughput.

Avoid over-relying on silo storage. 2,000 capacity covers two satellite runs, not an indefinite buffer. Stacking launches without advancing research wastes yields. Pace payload-launching to research absorption: if labs consume 100/sec and you launch 1,000 every 3 minutes, surplus packs vanish at launch 3.

Shift thinking: silo transitions from "one-time event" to "recurring production wing." Satellite needs 100 panels, 100 accumulators, 100 lightweight, 100 boards, 50 fuel, 5 radars, so separate satellite assembly lines—don't merge into main busses. Stalled boards throttle satellites, which throttles white packs. Identify the bottleneck early.

Action Checklist

Onward from silo, methodically close these gaps:

1. Clarify Vanilla or Space Age
2. List outstanding pre-silo research
3. Inspect circuit, lightweight, fuel reserves and flow
4. Confirm copper, oil, steel expansion margin exists
5. Choose first-launch payload: empty, satellite, or platform starter

These aren't independent; low circuits stall control and lightweight; low oil chokes fuel and plastic; copper margins vanish if silo + white packs compete. Measure sustained flow, not warehouse peaks. End-stage stalls come from anemic baseline supply, not temporary deficit.

Chaining to parallel articles: beginner-first-factory covers full roadmap, research-priority handles lab scheduling, oil-processing-basics solves refinery deadlock. Rocket is inflection point—white-pack SPM rebuild (Vanilla) or space platform bootstrap (Space Age) awaits next.

Summary

Framing rockets as Vanilla's victory endpoint or Space Age's orbital gateway eliminates decision blur. Progress via research → silo → component stream → payload → launch; bottlenecks hit circuits, lightweight, fuel in sequence. Copper and oil expansion, distributed across distinct lines, unlock most stalls. Vanilla's payload defaults to empty for speed or satellite for research; Space Age starts with platform cargo. Post-launch, silos anchor white-pack routine or orbital resupply. Five-item checklist clears the path forward. Next phase awaits.