How do jetpacks work?

The first challenge with the design of any jetpack is how to get the pilot off the ground without burning his legs off below the knees.

How far can a jetpack fly? - Quora

Jetpack for Sale Engineering Article for Students

Modelling, design and analysis of a water jetpack powered by an autonomous underwater vehicle (AUV) system.

Understanding Jetpack Compose — part 1 of 2, by Leland Richardson, Android Developers

What traffic? Boater commutes to work with James Bond-style jet pack - YBW

How Hydroflight Works-Diagram - Jetpack America

Apollo Flight Labs Auctions Working JetPack and JetBike on – Robb Report

Taking Off With a Jet Pack

Jetpack Is Real, and It Flies

The Future Today: Robot Jetpacks in the Works

How do astronaut jetpacks work? - Quora

Martin Jetpack could see the creation of 'highways in the sky

Inside Gravity's daring mission to make jetpacks a reality

Modelling, design and analysis of a water jetpack powered by an autonomous underwater vehicle (AUV) system.