Iron Jetpacks in Project Infinity 0.1

Project Infinity 0.1 0.0.51.4-hotfix-2 ships version 7.0.9 · First seen in 0.0.45.4

Checked Sep 17, 2026Project Infinity 0.1 0.0.51.4-hotfix-2Sources: Project Infinity 0.1 0.0.51.4-hotfix-2 modlist.json · Modrinth

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Iron Jetpacks is a mod in Project Infinity 0.1 0.0.51.4-hotfix-2, where it is version 7.0.9. A fully customizable Forge Energy (FE) based jetpacks mod! (Summary from the mod's Modrinth page.)

What is Iron Jetpacks?

2 parts

Iron Jetpacks adds Forge Energy (FE) powered jetpacks to the pack. The pack runs version 7.0.9, and it was already in the pack by 0.0.45.4 or earlier.[1][2]

The mod comes with a set of default jetpacks made from various vanilla and modded materials, and every jetpack stat is configurable. You get throttle controls to adjust your aerial speed on the fly, plus a built-in HUD that shows your energy, engine, hover and throttle stats. You can also equip a jetpack as a Curio.[1]

Where the quest book puts it

The jetpack quest sits in the "EndGame" chapter, which is in the "Storyline" group and is chapter 7 of 44 in the book. That chapter has 70 quests. The quest is listed as a quest in "EndGame" and asks you to hand in a Jetpack.[3]

The mod is not on the ATM Star quest path.[3]

A second appearance in the Shop

The jetpack also turns up in the "Shop" chapter, which is chapter 2 of 44. The quest "Creative Flight" quest (Creative Flight) asks for 32 ascended coins plus a Jetpack. Its description says it allows you to fly and needs a lot of levels.[4]

How do you get started with Iron Jetpacks?

6 parts

Iron Jetpacks gives you jetpacks powered by Forge Energy. In this pack you start with a plain wooden one and upgrade it step by step. Here is the order I would go in, and why.[1][5]

Watch out: The mod's own default jetpack recipes are switched off in this pack (Recipe.jetpacks is false). The jetpack recipes you will see are added by the pack. The default recipes for capacitors, thrusters and energy cells are still switched on.[6][7]

First, make a Leather Strap

The pack's entry-level jetpack recipe uses a strap, so start with Leather Strap.[7]

Leather StrapMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany iron nuggetEmpty slot
LeatherLeatherLeather
Empty slotany iron nuggetEmpty slot

Recipe id: ironjetpacks:strap

Then a Capacitor and a Thruster

Next come the Capacitor and the Thruster, which appear in the pack's jetpack recipes. Their default recipes are enabled through Recipe.capacitors and Recipe.thrusters. Energy cells (Cell) are enabled the same way through Recipe.cells.[6][7]

Craft the wooden Jetpack

The pack's entry-level jetpack recipe uses planks as its material. That matches the wood jetpack, whose crafting material in its config is planks. It has a capacity of 20,000, a usage of 32 and a tier of 0.[5][7]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any plankCapacitorany plank
any plankLeather Strapany plank
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack

Upgrade it tier by tier

After that, the pack has you upgrade by crafting. Each upgrade recipe takes your current Jetpack as an ingredient and gives you the next one. The stone version is the first step up: its capacity is 100,000, its usage is 70 and its tier is 1.[7][8]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any stoneCapacitorany stone
any stoneJetpackany stone
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_2

The pack has the same kind of recipe for copper, iron, bronze and silver, and the chain keeps going into higher tiers, each with its own config file.[7][9][10][11][12]

The coils

The mod also adds four coils: Basic Coil, Advanced Coil, Elite Coil and Ultimate Coil. They use the mod's own recipes, shown below.[7][13]

Basic CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany iron ingotany redstone dust
any iron ingotany wooden rodany iron ingot
any redstone dustany iron ingotEmpty slot

Recipe id: ironjetpacks:basic_coil

Advanced CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany gold ingotany redstone dust
any gold ingotany wooden rodany gold ingot
any redstone dustany gold ingotEmpty slot

Recipe id: ironjetpacks:advanced_coil

Elite CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany diamond gemany redstone dust
any diamond gemany wooden rodany diamond gem
any redstone dustany diamond gemEmpty slot

Recipe id: ironjetpacks:elite_coil

Ultimate CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany emerald gemany redstone dust
any emerald gemany wooden rodany emerald gem
any redstone dustany emerald gemEmpty slot

Recipe id: ironjetpacks:ultimate_coil

Where the quest book puts it

In the quest book, a quest in "EndGame" sits in the EndGame chapter, in the Storyline group, asks you to hand in a jetpack, and comes after "One Small Step" quest. It is also listed before the final quest, a quest in "EndGame". The Shop chapter's Creative Flight quest, "Creative Flight" quest, asks for a jetpack as well as 32 ascended coins.[3][4]

How does Iron Jetpacks work?

4 parts

Iron Jetpacks is a Forge Energy (FE) mod, so every jetpack you fly is an energy storage item that burns power as you move. You get throttle controls to change your aerial speed on the fly, plus a built-in HUD that shows your energy, engine, hover and throttle stats. You can also wear a jetpack as a Curio, and the pack has that switched on.[1][6]

The parts of a jetpack

A jetpack is built from several components: a Capacitor, a Thruster, an Cell, a Leather Strap and the finished Jetpack. Each of these is named after its material tier, such as a Steel Jetpack or an Emerald Energy Cell.[13]

The leather strap is a plain crafting recipe from the mod itself.[7]

Leather StrapMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany iron nuggetEmpty slot
LeatherLeatherLeather
Empty slotany iron nuggetEmpty slot

Recipe id: ironjetpacks:strap

The mod also has a coil ladder: Basic Coil, Advanced Coil and Elite Coil, each with its own shaped recipe from the mod below.[7]

Basic CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany iron ingotany redstone dust
any iron ingotany wooden rodany iron ingot
any redstone dustany iron ingotEmpty slot

Recipe id: ironjetpacks:basic_coil

Advanced CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany gold ingotany redstone dust
any gold ingotany wooden rodany gold ingot
any redstone dustany gold ingotEmpty slot

Recipe id: ironjetpacks:advanced_coil

Elite CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany diamond gemany redstone dust
any diamond gemany wooden rodany diamond gem
any redstone dustany diamond gemEmpty slot

Recipe id: ironjetpacks:elite_coil

The Ultimate Coil is the top of the ladder. It is used in this pack's creative thruster recipe.[13][14]

How crafting works in this pack

The pack changes how jetpacks are made. In Recipe.jetpacks the default jetpack recipes are turned off, while the default recipes for capacitors, cells and thrusters stay on (Recipe.capacitors, Recipe.cells, Recipe.thrusters). The jetpack recipes you actually use are added by the pack's scripts instead.[6][7]

The first pack recipe combines a capacitor, a strap, a thruster and planks into a jetpack.[7]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any plankCapacitorany plank
any plankLeather Strapany plank
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack

Higher tiers are upgrades. These pack recipes take an existing jetpack, a capacitor and a thruster, plus an ingot, and give you a jetpack. There are versions for gold, steel and electrum ingots.[7]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any gold ingotCapacitorany gold ingot
any gold ingotJetpackany gold ingot
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_10

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any steel ingotCapacitorany steel ingot
any steel ingotJetpackany steel ingot
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_11

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any electrum ingotCapacitorany electrum ingot
any electrum ingotJetpackany electrum ingot
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_12

Two more pack recipes need two thrusters, an Infinity 1 item and emeralds on top of a capacitor and a jetpack.[7]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
EmeraldCapacitorEmerald
EmeraldJetpackEmerald
ThrusterInfinity 1Thruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_30

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
EmeraldCapacitorEmerald
EmeraldJetpackEmerald
ThrusterInfinity 1Thruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_31

The second pack recipe of this kind.

Watch out: Jetpacks are not enchantable in this pack, because General.enchantableJetpacks is set to false.[6]

Energy and flight stats

Each jetpack tier has its own json file in the Iron Jetpacks config folder, and the pack sets the values in them. Take the steel file as an example: it holds the stored energy (capacity), the energy drain (usage), and flight numbers like vertical speed, vertical acceleration, sideways speed and the hover speeds. It also holds sprint multipliers for fuel use, speed and vertical speed. Item tooltips show Horizontal Speed, Hover Ascend Speed, Hover Descend Speed, Vertical Acceleration, Sprint Fuel Modifier and Sprint Vertical Multiplier.[13][15]

The trade-off is simple: bigger batteries and faster flight cost more power. A Stone Jetpack has a vertical speed of 0.25 and a usage of 70, while a Diamond Jetpack has a vertical speed of 0.9 and a usage of 650. Its sprint fuel multiplier is also higher, 3.8 against 1.[8][16]

Here are the pack's capacity and usage values for every tier.[17]

  • Wood (tier 0): capacity 20,000, usage 32.[5]
  • Stone (tier 1): capacity 100,000, usage 70.[8]
  • Copper (tier 1): capacity 250,000, usage 85.[9]
  • Iron (tier 2): capacity 800,000, usage 120.[10]
  • Bronze (tier 2): capacity 800,000, usage 120.[11]
  • Silver (tier 2): capacity 1,200,000, usage 150.[12]
  • Gold (tier 3): capacity 10,000,000, usage 300.[18]
  • Electrum (tier 3): capacity 10,000,000, usage 310.[19]
  • Invar (tier 3): capacity 12,000,000, usage 350.[20]
  • Steel (tier 3): capacity 12,000,000, usage 350.[15]
  • Diamond (tier 4): capacity 30,000,000, usage 650.[16]
  • Platinum (tier 4): capacity 36,000,000, usage 720.[21]
  • Emerald (tier 5): capacity 48,000,000, usage 880.[22]

The creative tier

The creative tier is flagged as creative in its config, with tier -1, capacity 0, usage 0 and a sprint fuel multiplier of 0. It still flies fast, with a vertical speed of 1.03.[17]

In this pack you can craft the creative parts. The creative energy cell, capacitor, thruster and jetpack are all made on an Extended Crafting table with endgame ingredients, and the finished parts feed into one another.[14][23][24][25]

The creative jetpack recipe also wants pre-charged jetpacks from lower tiers. For example it asks for a steel jetpack holding 12,000,000 energy, which matches the steel capacity, and an emerald jetpack holding 48,000,000, which matches the emerald capacity. Charge them up before you craft.[15][22][25]

How do you progress through Iron Jetpacks?

4 parts

Jetpack progression in this pack is a chain of crafts. You build the parts, make a first jetpack, then feed jetpacks back into new recipes until you reach the creative tier. The jetpack recipes in the recipe dump are added by the pack itself.[7]

Parts you need first

The Leather Strap and the four coils use the mod's own recipes. The coils go from Basic Coil to Advanced Coil, Elite Coil and Ultimate Coil.[7]

Leather StrapMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany iron nuggetEmpty slot
LeatherLeatherLeather
Empty slotany iron nuggetEmpty slot

Recipe id: ironjetpacks:strap

Basic CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany iron ingotany redstone dust
any iron ingotany wooden rodany iron ingot
any redstone dustany iron ingotEmpty slot

Recipe id: ironjetpacks:basic_coil

Advanced CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany gold ingotany redstone dust
any gold ingotany wooden rodany gold ingot
any redstone dustany gold ingotEmpty slot

Recipe id: ironjetpacks:advanced_coil

Elite CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany diamond gemany redstone dust
any diamond gemany wooden rodany diamond gem
any redstone dustany diamond gemEmpty slot

Recipe id: ironjetpacks:elite_coil

Ultimate CoilMod recipe

Crafting Shaped

Crafting Shaped
Empty slotany emerald gemany redstone dust
any emerald gemany wooden rodany emerald gem
any redstone dustany emerald gemEmpty slot

Recipe id: ironjetpacks:ultimate_coil

You will need this one again for the creative thruster.

From first jetpack to upgrades

The pack's entry-level Jetpack recipe is this one:[7]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any plankCapacitorany plank
any plankLeather Strapany plank
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack

After that, the pack adds a long run of upgrade recipes. Each one takes an existing jetpack back in, alongside a Capacitor and a Thruster, and the extra material changes from recipe to recipe. The materials that show up include stone, copper, iron, bronze, silver, gold, steel, electrum, invar, diamond and platinum. Here are two examples:[7]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any stoneCapacitorany stone
any stoneJetpackany stone
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_2

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
any diamond gemCapacitorany diamond gem
any diamond gemJetpackany diamond gem
ThrusterEmpty slotThruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_22

Two of the upgrade recipes go further and ask for Infinity 1, which is also the item of the first Infinity quest in the EndGame chapter. Both use the same recipe shape:[3][7]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
EmeraldCapacitorEmerald
EmeraldJetpackEmerald
ThrusterInfinity 1Thruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_30

Unverified The recipe data shows every upgrade output as a placeholder jetpack name, so the exact order of tiers and which recipe produces which tier cannot be confirmed from the sources here. The pack's jetpack setup lives in the script kubejs/server_scripts/mods_recipes/ironjetpacks/add.js, which the sources here do not show.

The creative tier

The top of the line is a four-step creative chain. All four recipes are added by the pack, are crafted in an Extended Crafting table, and are gated by the numbered Infinity items from the EndGame chapter.[7][14][23][24][25]

  1. Creative Cell: needs Infinity 9, plus platinum and emerald energy cells.[7][24]
  2. Creative Thruster: needs Infinity 10, an Ultimate Coil and the creative energy cell.[7][14]
  3. Creative Capacitor: needs Infinity 11 and the creative energy cell.[7][23]
  4. Creative Jetpack: needs Infinity 12, the creative capacitor, the creative thruster and a Leather Strap.[7][25]

The creative jetpack recipe also wants lower-tier jetpacks that already hold energy: stone at 100,000, silver at 1,200,000, steel and invar at 12,000,000 each, and emerald at 48,000,000. So you need to have climbed the tiers before you get there.[25]

Where the quests put it

In the EndGame chapter (chapter 7 of 44 in the book, group Storyline), the quest a quest in "EndGame" asks for the jetpack item and comes right after "One Small Step" quest, the quest for The Ultimate Ingot. It is also one of the many quests that must be done before the final quest, a quest in "EndGame".[3]

The Shop chapter (chapter 2 of 44) has a separate quest, "Creative Flight" quest. It asks for 32 ascended coins and a jetpack, and its description says it allows you to fly and needs a lot of levels.[4]

How does Iron Jetpacks work with other mods?

3 parts

Iron Jetpacks is a Forge Energy (FE) based mod, so it can work with other energy mods. It also supports Curios, so you can equip a jetpack as a Curio. In this pack, though, the most interesting connections come from the recipes and quests, which tie the mod into the endgame.[1]

The pack adds recipes for the creative tier of Iron Jetpacks parts. They are all Extended Crafting shaped table recipes that pull in materials from other mods, so they are very much endgame crafts.[7]

Building the creative tier

It starts with the creative Cell. The pack's recipe combines lower-tier platinum and emerald energy cells with The Ultimate Ingot, Crystal Matrix Ingot, Infinity 9 and a lot of shadow, crimson and other materials from Botanical Extra Machinery.[7][24]

The creative Thruster needs that creative energy cell, an Ultimate Coil and Infinity 10. It also takes Project Expansion matter, more Botanical Extra Machinery shadow materials and the Rainbow Furnace.[7][14]

The creative Capacitor also needs the creative energy cell. Around it sits Infinity 11, a Creative Energy Cube, a 256k Portable FE Cell and more crimson materials, plus Magenta Matter.[7][23]

The creative Jetpack recipe takes a capacitor, a thruster, a Leather Strap and several regular jetpacks. It adds Infinity 12 and parts from other mods, such as the Angel Ring.[7]

Iron Jetpacks as an ingredient elsewhere

A jetpack is also one of the many ingredients in the pack's recipe for the Creative ME Item Cell. That recipe mostly collects creative and endgame items from other mods, so it ties the jetpack line into the wider endgame.[7]

Creative ME Item CellAdded by the pack

Shaped Table (extendedcrafting)

Shaped Table (extendedcrafting)
Fading MatterFading MatterCreative BinCreative Vending UpgradeMachine Efficiency Creative AugmentChaotic Flight ModuleEndest PearlCreative Chemical TankCreative Fluid TankCreative Vending UpgradeCreative BinFading MatterFading Matter
Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12
Supreme Black Hole Unit256M MEGA Storage ComponentInfinity 12Creative BinCreative Mana BatteryEnergy Cell (Creative)Creative AlloyInfinity HelmetInfinity ChestplateCreative BinInfinity 12256M MEGA Storage ComponentSupreme Black Hole Unit
Creative CompressorMana TabletInfinity 12Infinity Ingot128³ Spatial Storage CellMana TabletCreative ME FE CellInfinity PantsInfinity BootsInfinity IngotInfinity 12Infinity EssenceJetpack
Ultimate BlockEnergy Condenser MK2Infinity 12Machine Efficiency Creative AugmentInfinity IngotCreative Energy BatteryRainbow CoreCreative Energy BatteryInfinity IngotCreative CapacitorInfinity 12Sp Avaritia.InfinityThe Everlasting Guilty Pool
Creative AlloyCreative Power SourceInfinity 12The Everlasting Guilty PoolCreative UpgradeInfinity IngotInfinity IngotInfinity IngotCreative UpgradeCreative Energy CellInfinity 12Creative Power SourceCreative Alloy
Creative Energy CubeCreative AlloyInfinity 12Creative Vending Upgrade128³ Spatial Storage CellRainbow CoreLONG-tier Creative Storage CellRainbow Core128³ Spatial Storage CellCreative Vending UpgradeInfinity 12Creative AlloyCreative Energy Cube
Creative AlloyCreative Power SourceInfinity 12Creative Energy CellCreative UpgradeInfinity IngotInfinity IngotInfinity IngotCreative UpgradeThe Everlasting Guilty PoolInfinity 12Creative Power SourceCreative Alloy
The Everlasting Guilty PoolSp Avaritia.InfinityInfinity 12Creative CapacitorInfinity IngotCreative Energy BatteryRainbow CoreCreative Energy BatteryInfinity IngotMachine Efficiency Creative AugmentInfinity 12Energy Condenser MK2Solar Ultimate Block
JetpackInfinity EssenceInfinity 12Infinity IngotUltimate Infinity SeedsFinal StarCreative ME FE CellMana Tablet128³ Spatial Storage CellInfinity IngotInfinity 12Mana TabletCreative Compressor
Supreme Black Hole Unit256M MEGA Storage ComponentInfinity 12Creative BinAureate Dragonstone BlockMazarine Dragonstone BlockCreative AlloyEnergy Cell (Creative)Creative Mana BatteryCreative BinInfinity 12256M MEGA Storage ComponentSupreme Black Hole Unit
Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12Infinity 12
Fading MatterFading MatterCreative BinCreative Vending UpgradeCreative Fluid TankCreative Chemical TankEndest PearlChaotic Flight ModuleMachine Efficiency Creative AugmentCreative Vending UpgradeCreative BinFading MatterFading Matter

Recipe id: ae2:creative_item_cell

The pack also adds two ordinary shaped crafting recipes that turn a jetpack into a jetpack. They use a capacitor, a thruster, a second thruster, Infinity 1 and some Emerald. Both have the same ingredients.[7]

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
EmeraldCapacitorEmerald
EmeraldJetpackEmerald
ThrusterInfinity 1Thruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_30

JetpackAdded by the pack

Crafting Shaped

Crafting Shaped
EmeraldCapacitorEmerald
EmeraldJetpackEmerald
ThrusterInfinity 1Thruster

Recipe id: minecraft:kjs/ironjetpacks_jetpack_31

Unverified The recipe dump does not say which jetpack tiers those two recipes take and produce.

In the quest book

In the EndGame chapter (Storyline group), the jetpack quest a quest in "EndGame" asks you to hold an Jetpack. It comes straight after "One Small Step" quest, the quest for The Ultimate Ingot.[3]

Many other EndGame quests ask for items that also appear in the Creative ME Item Cell recipe. Examples are a quest in "EndGame", a quest in "EndGame" and a quest in "EndGame". The creative-item quests, such as a quest in "EndGame" and a quest in "EndGame", come after "The Beginning of the End" quest. The chapter has 70 quests, and the text of 25 of them is only in the quest book.[3][7]

The Shop chapter has one more link. The quest "Creative Flight" quest asks for a jetpack plus ascended coins, and its description says it "Allows you to fly. Needs a lot of levels".[4]

Which Project Infinity 0.1 quests use Iron Jetpacks?

3 parts

Two quest chapters in the pack ask you for a Jetpack. One is in the Shop, early in the book. The other is in the late-game EndGame chapter.[3][4]

Shop (chapter 2 of 44)

The Shop chapter has 29 quests, and most of them ask you to hand in coins. The jetpack one is "Creative Flight" quest. Its description says it allows you to fly and needs a lot of levels. It has two tasks: hand in 32 Ascended Coin and hand in a Jetpack.[4]

EndGame (Storyline group, chapter 7 of 44)

The EndGame chapter has 70 quests. Here the jetpack quest is a quest in "EndGame", and its only task is to hand in a Jetpack. It comes after "One Small Step" quest, which asks for the Ultimate Ingot from Extended Crafting.[3]

"One Giant Leap" quest (the Avaritia Infinity Catalyst) also comes after that same quest. So the jetpack is a side branch off "One Small Step" quest, not a step on the main line to "The Beginning of the End" quest.[3]

The jetpack quest does lead somewhere. It is one of the many quests listed before a quest in "EndGame", the chapter's final quest, described as the culmination of all your efforts. That quest asks for the AE2 Creative ME Item Cell.[3]

Suggested order

  1. Start with "Creative Flight" quest in the Shop chapter, which is chapter 2 of the book.[4]
  2. Later, in the EndGame chapter, finish "One Small Step" quest.[3]
  3. Then hand in the jetpack for a quest in "EndGame".[3]
  4. Finally, a quest in "EndGame" needs this jetpack quest done, along with many others.[3]

Which Iron Jetpacks config options matter?

3 parts

Iron Jetpacks is a Forge Energy based jetpack mod, and this pack ships its configs with specific values. Three places matter most: the common config, the client config, and one JSON file per jetpack.[1][6]

Common config

These options live in config/ironjetpacks-common.toml and change how the mod behaves for everyone.[6]

Client config: HUD, sounds and particles

The client file is config/ironjetpacks-client.toml. Tooltips, particles and sounds are all enabled: General.advancedTooltips, General.jetpackParticles and General.jetpackSounds are true.[26]

The HUD is on with HUD.enable set to true. HUD.position is 1, which is Middle Left, out of presets 0 to 5 (0 Top Left, 1 Middle Left, 2 Bottom Left, 3 Top Right, 4 Middle Right, 5 Bottom Right). Both HUD.offsetX and HUD.offsetY are 0, and HUD.showOverChat is false.[26]

Tip: If the HUD sits somewhere awkward for you, change HUD.position to another preset, or use the X and Y offsets to nudge it.[26]

Per-jetpack stats

Each jetpack has its own file in config/ironjetpacks/jetpacks/, with keys such as capacity, usage, tier, armorPoints and several speed values. The wood and iron files, for example, both have disable set to false and curios set to true.[5][10]

Here is how capacity and usage scale across a few of the tiers:[5][8][10][16][18][22]

  • Wood: tier 0, capacity 20,000, usage 32.[5]
  • Stone: tier 1, capacity 100,000, usage 70.[8]
  • Iron: tier 2, capacity 800,000, usage 120.[10]
  • Gold: tier 3, capacity 10,000,000, usage 300.[18]
  • Diamond: tier 4, capacity 30,000,000, usage 650.[16]
  • Emerald: tier 5, capacity 48,000,000, usage 880.[22]

The other metals fit in around those. Bronze has the same stats as iron: tier 2, capacity 800,000, usage 120. Platinum is tier 4 with capacity 36,000,000 and usage 720. Steel and invar are both tier 3 with capacity 12,000,000 and usage 350.[10][11][15][20][21]

Speed also climbs with tier. For example, speedVertical is 0.18 for wood, 0.41 for iron and 1.03 for emerald.[5][10][22]

Tip: The creative jetpack file has creative set to true, capacity 0, usage 0, craftingMaterial null and tier -1. Its speedVertical is 1.03, the same as emerald, but its sprintFuelMulti is 0.[17][22]

What changed in Iron Jetpacks between versions?

1 part

There isn't much version history to cover for this mod. Project Infinity 0.1 0.0.51.4-hotfix-2 ships Iron Jetpacks at version 7.0.9 for Minecraft 1.20.1. It was first included in Project Infinity 0.1 0.0.45.4 or earlier.[2][27]

Iron Jetpacks 7.0.9

  • The only change listed in the 7.0.9 changelog is that an update checker URL was added.[27]

Unverified Changes to Iron Jetpacks between Project Infinity releases would be listed in the pack's own changelogs. The sources here do not show any entries for this mod, so how it changed from one pack release to the next is unverified.

Sources

  1. Iron Jetpacks project page (modrinth) · official mod data
  2. Project Infinity 0.1 0.0.51.4-hotfix-2 mod list · pack file
  3. Project Infinity 0.1 0.0.51.4-hotfix-2 quests: "EndGame" · quest text
  4. Project Infinity 0.1 0.0.51.4-hotfix-2 quests: "Shop" · quest text
  5. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/wood.json · pack file
  6. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks-common.toml · pack file
  7. Project Infinity 0.1 0.0.51.4-hotfix-2 recipe dump: recipes making Iron Jetpacks items · pack recipe dump
  8. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/stone.json · pack file
  9. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/copper.json · pack file
  10. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/iron.json · pack file
  11. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/bronze.json · pack file
  12. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/silver.json · pack file
  13. ironjetpacks names, screen text and descriptions (English lang file) · official mod data
  14. kubejs/server_scripts/mods_recipes/extendedcrafting/endgame_items/creative_thruster.js (Project Infinity 0.1's own script) · pack file
  15. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/steel.json · pack file
  16. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/diamond.json · pack file
  17. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/creative.json · pack file
  18. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/gold.json · pack file
  19. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/electrum.json · pack file
  20. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/invar.json · pack file
  21. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/platinum.json · pack file
  22. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks/jetpacks/emerald.json · pack file
  23. kubejs/server_scripts/mods_recipes/extendedcrafting/endgame_items/creative_capacitor_iron_jetpacks.js (Project Infinity 0.1's own script) · pack file
  24. kubejs/server_scripts/mods_recipes/extendedcrafting/endgame_items/creative_energy_cell_iron_jetpacks.js (Project Infinity 0.1's own script) · pack file
  25. kubejs/server_scripts/mods_recipes/extendedcrafting/endgame_items/creative_jetpack.js (Project Infinity 0.1's own script) · pack file
  26. Project Infinity 0.1 0.0.51.4-hotfix-2 config: config/ironjetpacks-client.toml · pack file
  27. Iron Jetpacks 7.0.9 changelog · changelog
Where this guide comes from

Written from what Project Infinity 0.1 itself ships: its files and recipes, the in-game guidebooks and the mods' own pages. Every statement links to the source it came from, and the numbers are checked against the pack before publishing.

Guide last verified Oct 17, 2026.

Guides for other versions: 0.0.45.4

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Version in each release

23 releases, first in 0.0.45.4
Project Infinity 0.1VersionJarWhere it came from
0.0.51.4-hotfix-2
Sep 16, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.51.4-hotfix-1
Sep 15, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.51.4
Sep 14, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.51.3-HOTFIX
Aug 16, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.51.3
Aug 15, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.51.2
Aug 11, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.51.1
Jul 31, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.50.2-hotfix
Jun 22, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.50.1
Jun 18, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.50.0
Jun 16, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.49.3
May 17, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.49.2
May 13, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.49.1
May 11, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.49.0
May 10, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.48.2
Apr 23, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.48.1
Apr 12, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.48.0
Apr 11, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.47.3
Mar 6, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.47.1
Feb 2, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.47.0
Feb 1, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.46.1
Jan 6, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.46.0
Jan 4, 2026
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release
0.0.45.4
Dec 23, 2025
7.0.9IronJetpacks-1.20.1-7.0.9.jarFrom the published release

"From pack files" means the list came from the pack's own files; "from the published release" means ForgeBase read the jars of the release itself.

Items and blocks

9 items from the 0.0.51.4-hotfix-2 recipe dump.

Project Infinity 0.1 quests (2)

Quests from the pack's FTB Quests book that ask for this mod's items.

See all 2 quests →

EndGame (1)
Shop (1)

Config options (how Project Infinity 0.1 sets them)

336 settings this pack ships for the mod. We don't have the mod's own defaults to compare them against yet.

See all 336 settings →

Show settings
SettingProject Infinity 0.1 value
General.advancedTooltips
Enable jetpack stat tooltips?
config/ironjetpacks-client.toml
true
General.jetpackParticles
Enable jetpack particles?
config/ironjetpacks-client.toml
true
General.jetpackSounds
Enable jetpack sounds?
config/ironjetpacks-client.toml
true
HUD.enable
Enable the HUD?
config/ironjetpacks-client.toml
true
HUD.offsetX
The X offset for the HUD.
config/ironjetpacks-client.toml
0
HUD.offsetY
The Y offset for the HUD.
config/ironjetpacks-client.toml
0

Which Project Infinity 0.1 mods work with Iron Jetpacks?

The Project Infinity 0.1 mods that share the most recipes with Iron Jetpacks. Highlighted ones have a guide.

Where does Iron Jetpacks appear in the Project Infinity 0.1 quest book?

Comments and tips

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