[1.12.x] Anatid Robotics / MuMech - MechJeb - Autopilot - [2.14.1] [1st April 2022] in Add-on Releases Posted October 26, 2021 · Edited October 26, 2021 by kithylin Typos It seems that MechJeb does not treat Ion Thrusters as "Engines". We can not properly use Ion Thrusters as our only source of propulsion with MechJeb when doing maneuvers in space. MechJeb does this weird sputter-sputter-thrust-thrust thing at about 50% engines with Ion Thrusters and it's not actually usable. Also MechJeb AutoLand will never calculate landing properly if we're using Ion Thrusters as our only source of propulsion. Can this please be fixed? Ion Thrusters as primary propulsion are a very important part of "Super Deep Space" missions.