Iron Jetpacks in FTB Evolution 2

Same as in the All the Mods 11 0.8.0-beta guide

Iron Jetpacks adds jetpacks that run on Forge Energy (FE), so they work with energy sources from many other mods. If you want to fly around your world instead of bridging and climbing, this is the mod for you.^[1]

This pack includes Iron Jetpacks 9.0.3.^[2]

What you get

• Fully customizable jetpacks: all jetpack stats and attributes are configurable, and you can add your own.^[1]
• A set of default jetpacks made from various vanilla and modded materials.^[1]
• Throttle controls, so you can change your aerial movement speed on the fly.^[1]
• A built-in HUD that shows your current energy, engine, hover and throttle stats.^[1]
• Curios support, so you can equip your jetpack as a Curio.^[1]

Who it's for

It suits players who like flexible, energy-powered movement and want to tune how it feels. The project describes the mod as both feature-rich and easy to use.^[1]

Unverified Where Iron Jetpacks fits in this pack's progression is unconfirmed. The sources I have don't show any pack-specific changes to jetpack stats or recipes, so check the in-game recipes and configs before assuming any numbers from the mod's defaults. This site does hold FTB Evolution 2's own recipes, read from the pack itself: look the item up in the item browser.

Iron Jetpacks adds jetpacks powered by Forge Energy (FE). They come in a set of default tiers made from vanilla and modded materials, and you can fly with them using throttle controls and a built-in HUD. In this pack, the config files decide which of those jetpacks you can actually use, so it pays to know that before you start gathering materials.^[1]

Start with the crafted parts

The recipes for this mod that the pack lists are the Leather Strap and a line of coils: Basic Coil, Advanced Coil, Elite Coil and Ultimate Coil. You can see the exact in-pack recipes below.^[3][4]

Leather StrapMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any iron nugget	Empty slot
Leather	Leather	Leather
Empty slot	any iron nugget	Empty slot

Recipe id: ironjetpacks:strap

The Leather Strap recipe as it is in this pack.

Basic CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any iron ingot	any redstone dust
any iron ingot	any wooden rod	any iron ingot
any redstone dust	any iron ingot	Empty slot

Recipe id: ironjetpacks:basic_coil

The first coil in the line.

Advanced CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any gold ingot	any redstone dust
any gold ingot	any wooden rod	any gold ingot
any redstone dust	any gold ingot	Empty slot

Recipe id: ironjetpacks:advanced_coil

Elite CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any diamond gem	any redstone dust
any diamond gem	any wooden rod	any diamond gem
any redstone dust	any diamond gem	Empty slot

Recipe id: ironjetpacks:elite_coil

Ultimate CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any emerald gem	any redstone dust
any emerald gem	any wooden rod	any emerald gem
any redstone dust	any emerald gem	Empty slot

Recipe id: ironjetpacks:ultimate_coil

The Ultimate Coil recipe as it is in this pack.

The mod also has capacitors, energy cells and thrusters as well as the jetpacks themselves. The pack keeps the default recipes switched on for them: Recipe.jetpacks, Recipe.thrusters, Recipe.capacitors and Recipe.cells are set to true. The recipe sources here do not include those item types, so check them in the recipe viewer in game.^[4][5]

Which jetpacks are switched on

Each jetpack material has its own config file, and the pack sets disable to false for only six of them. These are the ones to plan around, with their capacity and usage values from the pack's files:^{[6][7][8][9][10][11]}

• Bronze: tier 1, capacity 800,000, usage 120.^[7]
• Invar: tier 2, capacity 12,000,000, usage 350.^[6]
• Platinum: tier 3, capacity 36,000,000, usage 720.^[10]
• Adamantite: tier 4, capacity 60,000,000, usage 900.^[9]
• Aeternium: tier 5, capacity 90,000,000, usage 1,100.^[8]
• Aurichalcum: tier 6, capacity 150,000,000, usage 1,400.^[11]

Wood, stone, copper, iron, gold, silver, steel, electrum, diamond, emerald and the creative jetpack all have disable set to true in this pack, so do not build your plans around them. As an example, see disable.^{[12][13][14][15][16][17][18][19][20][21][22]}

Two settings worth knowing

• General.curiosIntegration is true, so jetpacks can be worn in a Curios slot as well as on the chest.^[1][5]
• General.enchantableJetpacks is false, so jetpacks are not enchantable in this pack.^[5]

Iron Jetpacks is a Forge Energy (FE) based jetpack mod, so your jetpack runs off stored energy rather than fuel. It has throttle controls for your aerial speed, and a built-in HUD that shows your energy, engine, hover and throttle stats. In this pack there are no machines or multiblocks to build here. The whole mod is about the jetpack items and how each material is configured, so that is what this section covers.^[1]

What the mod adds

Each material gets its own Jetpack, Thruster, Capacitor and Energy Cell, named after the material (for example "<material> Jetpack"). On top of that there are four coils, which are the Basic Coil, Advanced Coil, Elite Coil and Ultimate Coil, plus the Leather Strap (shown in game as Leather Strap).^[4]

The pack leaves all four default recipe groups switched on: Recipe.jetpacks, Recipe.thrusters, Recipe.capacitors and Recipe.cells are all true.^[5]

These are the mod's own crafting recipes for the coils and the strap in this pack:^[3]

Basic CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any iron ingot	any redstone dust
any iron ingot	any wooden rod	any iron ingot
any redstone dust	any iron ingot	Empty slot

Recipe id: ironjetpacks:basic_coil

Advanced CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any gold ingot	any redstone dust
any gold ingot	any wooden rod	any gold ingot
any redstone dust	any gold ingot	Empty slot

Recipe id: ironjetpacks:advanced_coil

Elite CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any diamond gem	any redstone dust
any diamond gem	any wooden rod	any diamond gem
any redstone dust	any diamond gem	Empty slot

Recipe id: ironjetpacks:elite_coil

Ultimate CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any emerald gem	any redstone dust
any emerald gem	any wooden rod	any emerald gem
any redstone dust	any emerald gem	Empty slot

Recipe id: ironjetpacks:ultimate_coil

Leather StrapMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any iron nugget	Empty slot
Leather	Leather	Leather
Empty slot	any iron nugget	Empty slot

Recipe id: ironjetpacks:strap

How a jetpack is defined

Every jetpack material has its own JSON file in config/ironjetpacks/jetpacks, and that file holds all of its stats. Those files are what make this pack's jetpacks what they are, so the numbers below are the pack's values. The energy side is covered by capacity and usage. The movement side is covered by horizontal_speed, vertical_speed, vertical_acceleration, hover_speed, hover_ascend_speed and hover_descend_speed, plus the three sprint multipliers for fuel, horizontal speed and vertical speed. Armor values (armor_points, toughness, knockback_resistance), tier, enchantability, rarity and color sit in the same file.^[11]

In game, the jetpack tooltip shows Horizontal Speed, Hover Ascend Speed, Hover Descend Speed, Sprint Fuel Modifier, Sprint Vertical Multiplier and Vertical Acceleration. Those are the stats you will compare between materials.^[4]

Which jetpacks are switched on

Six jetpack files in the pack set disable = false: bronze, invar, platinum, adamantite, aeternium and aurichalcum.^{[6][7][8][9][10][11]}

The stone, wood, iron, copper, gold, silver, steel, electrum, diamond and emerald files, plus the creative file, all carry disable = true.^{[12][13][14][15][16][17][18][19][20][21][22]}

Stats of the six active jetpacks

Every one of these six has a hover descend speed of 0.25. The other values climb with the tier, as you can see below.^{[6][7][8][9][10][11]}

• Bronze (tier 1): capacity 800,000, usage 120, horizontal speed 0.14, vertical speed 0.41, vertical acceleration 0.12, hover ascend speed 0.27, hover speed 0.075, sprint multipliers 2.1 (fuel), 1.1 (horizontal) and 1.05 (vertical), 3 armor points.^[7]
• Invar (tier 2): capacity 12,000,000, usage 350, horizontal speed 0.15, vertical speed 0.61, vertical acceleration 0.13, hover ascend speed 0.34, hover speed 0.03, sprint multipliers 3.2 (fuel), 1.5 (horizontal) and 1.25 (vertical), 3 armor points.^[6]
• Platinum (tier 3): capacity 36,000,000, usage 720, horizontal speed 0.193, vertical speed 0.92, vertical acceleration 0.155, hover ascend speed 0.42, hover speed 0.005, sprint multipliers 3.8 (fuel), 1.8 (horizontal) and 1.4 (vertical), 4 armor points.^[10]
• Adamantite (tier 4): capacity 60,000,000, usage 900, horizontal speed 0.205, vertical speed 1, vertical acceleration 0.165, hover ascend speed 0.44, hover speed 0, sprint multipliers 3.9 (fuel), 1.9 (horizontal) and 1.45 (vertical), 4 armor points.^[9]
• Aeternium (tier 5): capacity 90,000,000, usage 1,100, horizontal speed 0.22, vertical speed 1.08, vertical acceleration 0.175, hover ascend speed 0.47, hover speed 0, sprint multipliers 4 (fuel), 2 (horizontal) and 1.5 (vertical), 4 armor points.^[8]
• Aurichalcum (tier 6): capacity 150,000,000, usage 1,400, horizontal speed 0.24, vertical speed 1.18, vertical acceleration 0.19, hover ascend speed 0.5, hover speed 0, sprint multipliers 4.2 (fuel), 2.2 (horizontal) and 1.6 (vertical), 4 armor points.^[11]

Curios and enchanting

You can wear a jetpack in a Curios slot. The pack has General.curiosIntegration set to true, and the six active jetpack files each have curios = true.^{[1][5][6][7][8][9][10][11]}

General.enchantableJetpacks is false in this pack, so don't plan on enchanting your jetpack.^[5]

The creative jetpack

There is also a creative jetpack file. It has creative = true, capacity 0, usage 0 and disable = true.^[12]

The sources for this pack only cover the crafting components of Iron Jetpacks, so this section stays short. They do not show jetpack stats, tier ordering or any quest guidance, so none of that is covered here.^[3]

Coils

The pack has a shaped crafting recipe for each of these coils: the Basic Coil, the Advanced Coil, the Elite Coil and the Ultimate Coil. The recipes below are the exact in-pack versions.^[3]

Basic CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any iron ingot	any redstone dust
any iron ingot	any wooden rod	any iron ingot
any redstone dust	any iron ingot	Empty slot

Recipe id: ironjetpacks:basic_coil

The in-pack recipe for the Basic Coil.

Advanced CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any gold ingot	any redstone dust
any gold ingot	any wooden rod	any gold ingot
any redstone dust	any gold ingot	Empty slot

Recipe id: ironjetpacks:advanced_coil

The in-pack recipe for the Advanced Coil.

Elite CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any diamond gem	any redstone dust
any diamond gem	any wooden rod	any diamond gem
any redstone dust	any diamond gem	Empty slot

Recipe id: ironjetpacks:elite_coil

The in-pack recipe for the Elite Coil.

Ultimate CoilMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any emerald gem	any redstone dust
any emerald gem	any wooden rod	any emerald gem
any redstone dust	any emerald gem	Empty slot

Recipe id: ironjetpacks:ultimate_coil

The in-pack recipe for the Ultimate Coil.

Leather Strap

The Leather Strap also has its own shaped crafting recipe in the pack. Check the recipe below for exactly what it needs.^[3]

Leather StrapMod recipe

Crafting Shaped

Crafting Shaped

Empty slot	any iron nugget	Empty slot
Leather	Leather	Leather
Empty slot	any iron nugget	Empty slot

Recipe id: ironjetpacks:strap

The in-pack recipe for the Leather Strap.

Iron Jetpacks is configured in two places in this pack: one common file for the global switches, and one JSON file per jetpack material. Here is how the pack sets the options you are most likely to touch.^[1][5]

The common config

• General.curiosIntegration is true, so Curios integration is on and you can equip a jetpack as a Curio.^[1][5]
• General.enchantableJetpacks is false, so jetpacks are not enchantable.^[5]
• Recipe.jetpacks, Recipe.thrusters, Recipe.capacitors and Recipe.cells are all true, so the default recipes for jetpacks, thrusters, capacitors and energy cells are enabled.^[5]

Which jetpacks are switched on

Each jetpack file has a disable key, and this is the one that shapes your game the most. In this pack it is set to false for bronze, invar, platinum, adamantite, aeternium and aurichalcum, so those are the jetpack materials you can actually use.^{[6][7][8][9][10][11]}

Disable is set to true for creative, stone, wood, iron, emerald, gold, silver, steel, diamond, copper and electrum. The creative file also has its creative key set to true.^{[12][13][14][15][16][17][18][19][20][21][22]}

Stats of the enabled jetpacks

Each file sets a tier, an energy capacity and a usage value. These are the numbers the pack uses for the enabled jetpacks, from lowest to highest tier.^{[6][7][8][9][10][11]}

• Bronze: tier 1, capacity 800,000, usage 120.^[7]
• Invar: tier 2, capacity 12,000,000, usage 350.^[6]
• Platinum: tier 3, capacity 36,000,000, usage 720.^[10]
• Adamantite: tier 4, capacity 60,000,000, usage 900.^[9]
• Aeternium: tier 5, capacity 90,000,000, usage 1,100.^[8]
• Aurichalcum: tier 6, capacity 150,000,000, usage 1,400.^[11]

Speed settings rise with the material too. Bronze has horizontal_speed 0.14 and a sprint horizontal multiplier of 1.1, while aurichalcum has horizontal_speed 0.24 and a sprint horizontal multiplier of 2.2.^[7][11]

There is not much history to tell for Iron Jetpacks in this pack. FTB Evolution 2 1.1.0 ships version 9.0.3 of the mod, built for MC 26.1.2, and it has been in the pack since 1.0.2 or earlier.^[23]

Iron Jetpacks 9.0.3

• Fixed jetpacks not consuming energy. This is the only change listed in the 9.0.3 changelog, and it is the version you get in FTB Evolution 2 1.1.0.^[23][24]

The pack changelogs have no entries for this mod, so there is nothing else to report about how its behaviour changed between pack releases.^[23]