This is an unofficial continuation of Ferram Aerospace Research by @ferram4 updated to latest KSP version. The original thread can be found here. New source code repository: All content now licensed under GPL v3. From the original thread: Update to version "Lumley" (Note for Kopernicus users: DO NOT overwrite MFI that comes with Kopernicus since it is locked to that particular version) ALL USERS: NO LOGS OR REPRODUCTION STEPS = NO SUPPORT       Features   Shape-Based, Vessel-Centered, Aerodynamics - Long, thin shapes drag less than wide, flat shapes, and smooth changes in body width reduce drag. The shape of the vessel as a whole, not individual parts, controls drag, so shape the vessel as you see fit. Emergent Fairings and Cargo Bays - The voxel model method FAR uses allows for the actual shape of the vehicle to play a role in how lift and drag are applied. Build a hollow shell, and close it up, and everything inside it will be protected from the airflow as it should. Wing Effects - Realistically adjusts lift based on wing position and configuration: wingtips lift less and drag more than wing roots. Stall - Passing the critical angle of attack suddenly reduces lift and greatly increases drag. Can put planes into tailspins, flat spins, and cause crashes. Mach Effects and Area Ruling - Lift and drag will vary as expected with Mach number. Supersonic planes will need to properly area rule themselves for optimum flight characteristics. Body lift - All parts lift: a fast enough brick will fly, if not that well.   Download: Get v0.15.9.7 "Lumley" from Github! Official FAR Craft Sharing Thread Post your crafts there, not here, please. Violators will have their posts moved by moderators, and will have everyone very annoyed with the additional workload for both moderators and me. The FAR wiki at GitHub The source at GitHub Everything licensed under GNU GPL v3     Part.cfg changes powered by sarbian & ialdabaoth's ModuleManager plugin. Interface with stock heating system and other mods interacting with the physics system powered by sarbian, Starwaster and ferram4 ModularFlightIntegrator Toolbar powered by blizzy78's Toolbar plugin. Installation: Copy the GameData and Ships folders into the KSP root directory and merge them with the existing GameData and Ships folders. Make sure that you copy over everything in the GameData folder. Serious issues will occur unless this is done. Changelog: FAQ - Common Questions and Solutions to Common Problems What does this mod do that stock KSP doesn't? Stock KSP calculates drag as a linear combination of the drag properties of a vehicle's parts, with some interaction changes to handle some of the most obvious aerodynamic interaction effects. FAR instead calculates the drag from the vessel shape as a whole, resulting in a more realistic model of aerodynamic drag and body lift. In addition, FAR accounts for wing shape, rather than just overall area like stock KSP. Finally, thanks to the overall vessel model, FAR can account for things like area ruling, where the vehicle's area cross-section must vary properly in order to fly at supersonic speeds (well, without MOAR BOOSTERS, in any case). I don't like my rocket coming apart under heavy aerodynamic loads; how can I turn it off? In the Space Center scene FAR has a debug menu that can be accessed to mess with a large number of the parameters. Under the "cheats" section of the first tab there is an option to disable aerodynamic failure. Does this plugin work properly with other mods / part packs? Sure; FAR figures out what the properties of the part should be based on its dimensions and some basic aerodynamic assumptions. If you use a mod and suspect that it causes unrealistic behavior, search the thread to see if it has been brought up / addressed by the latest release; if it hasn't, feel free to bring it to my attention. The only exception is with wing parts, which are more complicated and currently must have their properties specified manually. Does this plugin make payload fairings and cargo bays work properly? Yes, it will support any and all fairings and cargo bays. Even those that you make out of completely unrelated parts, so long as you close up the shape. In fact, to FAR, there is little difference between the inside of a closed fairing and the inside of a fuel tank part; they're both just as internal to it. I can't seem to turn off the Flight Assistance Systems... what's going on? In the Flight Assistance GUI every button that is pressed activates a control system; when none are pushed down no control systems are active. I suspect that you've actually created a poorly designed craft and that you're attributing aerodynamic forces that you're not used to dealing with to non-existent control inputs. Do I need ModuleManager and/or ModularFlightIntegrator? Yes; they are used to properly apply aerodynamic properties to stock wing parts and to interface properly with the game's physics system. Not using them will cause FAR to not function. I'm using the win64 KSP build and I am still too outraged to read the topic title or changelog, please mock me. Very well, I shall.  Haha, silly person.  Anyway, win64 is now unlocked for the foreseeable future.  If it turns back into the crashtastic support-heavy nightmare it was, the lock may return, but I do not anticipate the need to do that.