With efficient, I mean the engine you can get the longest distance with. I've tried reinstalling the game but every time the same problem occurs again. This modest part pack is designed to provide some new rocket engines that run on Liquid Hydrogen and Oxidizer. Now the problem is that with both the OPT mods + Kerbal Atomics installed the OPT engines don't use Liquid Fuel anymore but they use LH2 ! The nuclear plane engines (TORY and the fission turbojet). When I launch them sparks come out of the engine but it doesn't launch. Version 1.1.0 for Kerbal Space Program 1.9.1. Kerbal Space Program. Dragging totaly useless oxidizer all the way who knows where is not really a good idea when you have no use for it, on the other hand with only a couple of existing tanks ships tend to get unnecessarilly large and bulky. share. Large engines tend to make the lander tall and unstable, and you rarely need that high TWR anyway. These engines have better fuel efficiency than the KSP 1.0 stock engines, up to 455s, but beware! Hi. 2.9k. They're more expensive and produce less thrust per unit weight. I've tried lots and lots of times to delete some patches and files of Kerbal Atomics but I still have this problem. Whats the most efficient engine in Kerbal Space Program? Liquid Fuel Engines Don't Work. share. 7 comments. KSP 1.9 Compatibility; Phase 3 release; New Engine parts. ksp, kerbal space program, mod Optional patch to make the engines burn KSP's normal liquid fuel and oxidizer mixture instead of the custom liquid hydrogen and oxidizer mixture that they use by default, at the cost of efficiency 2.8k. report. Posted by 6 days ago. This is not an atomic engine, this is a usual liquid fuel + oxygen engine. KSP 1.9; New stock part replacements; Engines. RE-M3 'Mainsail' Liquid Fuel Engine (Nertea/riocrokite): New model to replace new 1.9 Squad model save. Planes equipped with this can fly on Eve, Duna (with some big wings), Tekto (OPM). 5. Testing the 'LV-909 "Terrier" Liquid Fuel Engine v2' Liquid Fuel Engine in Kerbal Space Program. The Terrier can burn for a pretty long time, but not with a lot of thrust. The Deinonychus. hide. ... so i have been getting this problem every time i begin an orbit and time warp my liquid fuel engines won't activate again. report. ... KSP commented on my Perseverance entry on console video! 56 comments. For example, if we compare the Terrier to the Mainsail. Finally, small engines such as the Spark and the Terrier are the best for landers. Eyeballing a starship landing. Normally the engines that the OPT mod adds work with stock Liquid Fuel and other resources. There are six models provided, two in each of the 1.25, 2.5 and 3.75m sizes. I have fuel tanks attached. Released on 2020-04-29. save. Kerbodyne UR-1 "Galleon"" Liquid Fuel Engine (Nertea): F-1 engine with Compact, 1.875m, 2.5m, 2.5m Boattail and 3.75m Boattail variants. Disabled if Making History is installed; New Fuel Tank parts Last edited by ahmed_al123; Mar 26, 2017 @ 4:46pm < > hide. Version 1.1.0 for Kerbal Space Program 1.9.1. Released on 2020-04-29. These are near-infinite fuel airplane engines that can use any atmosphere, not just oxygenated ones. Upper stage engines and other vacuum engines require a decent TWR and a high vacuum Isp. Hello world I often use atomic engines in KSP but it seems the offer of liquid fuel (only) tanks is still kinda limited in KSP. The Poodle, the Skipper, and the Rhino are appropriate for my typical payloads.