Iron Jetpacks is a modern Jetpacks mod that is both feature-rich and easy to use. 

Features

• Fully customizable! All Jetpack stats and attributes are fully configurable + you can add your own! (docs)
• Comes with a set of default Jetpacks made of various Vanilla and Modded materials.
• Powered using Forge Energy (FE) for extensive mod compatibility.
• Throttle Controls! Control your aerial movement speed on the fly!
• View your current energy, engine, hover and throttle stats using the built in HUD.
• NEW! Curios support! Equip your Jetpack as a Curio.