Prop-Pack

Proppellor-Packs, also known as Prop-Packs, are devices worn on the back which enable controlled descent, or in some cases sustained flight. They are about twice the size of a backpack look simmilar to a steam boiler with a propellor protruding from the top. Because of their immense weight, prop-packs are Leviathum-lined to severly decrease their weight when worn or carried. They are powered by a regular Leviathum-Steam engine, but require a Tesla Tube in order to power the Leviathum lining.

Usage
Prop-Packs are commonly found on larger airships as emergency devices to allow the crew descend safely should they need to abandon ship. They are also used by all three Western militaries as part of the Drop Trooper program.