Ferram Aerospace Research

Realistic aerodynamics for KSP

License: GPLv3

Game Version: 1.3.1

Downloads: 72,713

Author: ferram4

Mod Website: Forum Thread

Support this mod: Donate

Followers: 457

Outdated Mod

This mod is not known to work with the latest version of Kerbal Space Program. Proceed with caution.

Information Changelog Stats

If stock KSP's aerodynamics leave out too many aerodynamic features, have too many game-like aspects, or just seem too easy, this is the mod for you.


  • 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.
  • Aerodynamic Failures - Going sideways at high speeds will rip rockets apart, pulling up too hard in a dive will rip plane's wings off.
  • Advanced Editor Tools and Flight Info - For helping to analyze your planes and figuring out how they'll behave before you fly them and what's happening as you fly them; intended for advanced players, not necessary if you're starting out.

Scott Manley Videos:

Playing around with aerodynamic failures:

Trying stuff with the editor tools:

Version v0.15.9.1_Liepmann for Kerbal Space Program 1.3.1

Released on 2018-04-02

Update for KSP 1.3.1 (though not strictly necessary)
Update to MM 3.0.4 for KSP 1.3.1

Added ability to override structural stress values for aerodynamic failures on a per-part basis
Switch to applying forces through part.AddForce rather than rb.AddForce to allow Principia to handle gravity within atmospheres
Added functions to KSPAPI to check the status of any vessel's voxelization

Fix issues with all RealChuteLite chutes having the same exact drag properties
Fix RealChuteLite GUI not displaying any information
Remove unnecessary stock lifting body effects on pods

Download (751.92 KiB)

Version v0.15.9_Liebe for Kerbal Space Program 1.3.0

Released on 2017-08-22

Update for KSP 1.3
Update to MM 2.8.1

Include support for localization
Include German (by terorie), Russian (by pand5461), and Chinese (by Nigh) translations

Fix NaN errors with Trajectories
Fix some issues with identifying KSPWheel Adjustable Landing Gear as gear

Download (739.77 KiB)

Version v0.15.8.1_Lewis for Kerbal Space Program 1.2.2

Released on 2017-06-04

Bugfix patch for KSP 1.2.2

Fix Flight GUI button activated/not activated being backwards
Don't revoxelize for several B9 and AJE animation modules to reduce lag, thanks blowfish
Fix game crashing when a vessel landed in water is loaded

Download (720.44 KiB)

Version Ferram_Aerospace_Research_v0.15.8_de_Laval for Kerbal Space Program 1.2.2

Released on 2017-05-22

Compatibility for KSP 1.2.2 (finally)
Update to MFI 1.2.4
Update to MM 2.7.6

Lots of compatibility changes thanks to Alexander Abramov
Reduce memory use and garbage production in GUI thanks to soulsource and Virindi-AC

Fix GUI button multiplication
Fix stock drag arrows to be useful again
Fix voxelization errors with some intake parts
Fix FARAction group settings not saving
Fix landing gear main axis dtermination
Fix voxel errors with some stock parts

Made ignorable transforms for voxelization customizable via config

Download (719.01 KiB)

Version v0.15.7.2_Lanchester for Kerbal Space Program 1.1.3

Released on 2016-07-01

Fix a serious bug in v0.15.7 and v0.15.7.1 where chutes would not provide any drag

Download (708.26 KiB)

Version v0.15.7.1_Kutta for Kerbal Space Program 1.1.3

Released on 2016-06-30

Update to MFI 1.1.6 to fix an incompatibility with Kopernicus and the earlier version
Update CompatibilityChecker version
Update license

Fix an issue where voxels could be incredibly asymmetric on symmetric crafts

Download (708.19 KiB)

Version v0.15.7_Kuchemann for Kerbal Space Program 1.1.3

Released on 2016-06-24

Update to ModuleManager 2.6.25
Update for KSP 1.1.3 compatibility

Implement higher resolution sub-voxel voxelization method
Allow switching between high and low res sub-voxel methods
Optimize voxel shell generation, particularly for high triangle count meshes
Increase the resistance to sideways aerostructural failures for many fuselage and rocket parts

Fix voxelization error that would lead to transparent mesh objects being voxelized
Fix voxelization errors that could lead to incomplete voxelization of some stock procedural fairing shapes

Download (706.17 KiB)

Version v0.15.6.5_Knudsen for Kerbal Space Program 1.1.2

Released on 2016-05-19

Update to ModularFlightIntegrator 1.1.4
Fix a serious issue where wings would provide no forces and forces would be distributed incorrectly across vehicles
Fix an issue where wing symmetry counterparts would not have equal masses
Fix non-zero convective heat flux on shielded parts

Download (706.48 KiB)

Version v0.15.6.4_Kleinhans for Kerbal Space Program 1.1.2

Released on 2016-05-15

Fix a no-drag issue with asteroids
Fix a physics breaking issue with Tweakscaled wing parts, thanks pellinor
Fix GUI window positions not loading on vessel spawn
Fix distribution of forces on parts; no change in total force and torque applied to vessel, just to which parts
Fix slightly negative drag on rearward-facing vehicles at high Knudsen numbers

Download (706.47 KiB)

Version v0.15.6.3_Kindelberger for Kerbal Space Program 1.1.2

Released on 2016-05-01

Recompile for KSP 1.1.2 compatibility
Bundle ModuleManager 2.6.24 for 1.1.2 compatibility

Fix a critical error that would cause KerbalEVAs to have no aerodynamic forces applied to them

Download (704.35 KiB)

Version v0.15.6.2_Kartveli for Kerbal Space Program 1.1.1

Released on 2016-04-30

Ensure KSP 1.1.1 compatiblity
Upgrade to ModuleManager 2.6.23

Fix new landing gear interfering with main axis determination
Fix RealChute / RealChuteLite interaction breaking stock chute behavior, thanks to stupid_chris
Fix mass-calc error for wing-mass-strength that resulted in all planes gaining unhealthy amounts of weight
Attempt to make debug-compatibility actually work, thanks to NathanKell

Download (704.14 KiB)

Version v0.15.6.1_von_Karman for Kerbal Space Program 1.1

Released on 2016-04-24

Fix a critical CPU usage bug that resulted in voxelization threads SpinWaiting forever, monopolizing the processor
Fix parachutes without RealChute configs not applying forces when FAR + RC are installed, thanks to stupid_chris
Fix ModuleManager database reload function hanging halfway through, breaking the game, thanks to stupid_chris

Download (705.28 KiB)

Version v0.15.6_Jones for Kerbal Space Program 1.1

Released on 2016-04-21

Update to KSP 1.1
Update to bundle ModuleManager 2.6.22
Update to bundle ModularFlightIntegrator 1.1.3

Updates to RealChuteLite, thanks to stupid_chris
Compatibility changes for use of KSP debuggers, thanks to neouy

Increase aerodynamic damping for fuselages to somewhat more realistic levels
Fix a serious issue that disabled the majority of conduction between parts

Disable win64 locking

Download (703.40 KiB)

Version v0.15.5.7_Johnson for Kerbal Space Program 1.0.5

Released on 2016-02-18

Tweak pitch and roll damping of fuselages to make more logical sense; excessive roll damping at high dynamic pressures for wingless vehicles has been fixed
Change units for specific excess power in the Flight Data readout to be W/kg on the basis that it makes more logical sense than m^2/s^3

Fix a critical error that prevented voxelizations of Kerbals or any vehicles that had Kerbals riding in a command seat

Download (695.01 KiB)

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