KSP 1.7.x Near Future Propulsion [1.1.1]  Last Updated April 17, 2019 This pack contains advanced electric engines for deep space travel. Generally engines split into the following categories: Gridded Ion Engines: like the stock Dawn, they have low TWR and great Isp. They run on Xenon fuel. Hall Effect Thrusters: similar to Gridded thrusters, but with better TWR at the cost of some Isp. They run on Argon fuel and