Difference between revisions of "Small Inline Reaction Wheel"
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== Usage == | == Usage == | ||
| − | {{quote|The placement does matter for [[reaction wheel]]s. Generally speaking they can cause some problems if placed far from the [[center of mass]]. Imagine you are grabbing that point and rotating it. That is what the reaction wheels will try to do. You'll get offcenter rotation anywhere other then near the COM.|[http://forum.kerbalspaceprogram.com/entries/740-Updated-Information-on-SAS-in-0-21-1#comment_4254 comment] by C7, in his blog entry “[http://forum.kerbalspaceprogram.com/entries/740-Updated-Information-on-SAS-in-0-21-1 Updated Information on SAS in 0.21.1]”}} They appear to function on a stability:mass ratio, and the effect can be enhanced by adding additional Inline Reaction Wheels. Often a single Inline Reaction Wheel isn't enough. | + | {{quote|The placement does matter for [[reaction wheel]]s. Generally speaking they can cause some problems if placed far from the [[center of mass]]. Imagine you are grabbing that point and rotating it. That is what the reaction wheels will try to do. You'll get offcenter rotation anywhere other then near the [[Center of mass|COM]].|[http://forum.kerbalspaceprogram.com/entries/740-Updated-Information-on-SAS-in-0-21-1#comment_4254 comment] by C7, in his blog entry “[http://forum.kerbalspaceprogram.com/entries/740-Updated-Information-on-SAS-in-0-21-1 Updated Information on SAS in 0.21.1]”}} They appear to function on a stability:mass ratio, and the effect can be enhanced by adding additional Inline Reaction Wheels. Often a single Inline Reaction Wheel isn't enough. |
Each Inline Reaction Wheel adds 0.12 tons to the mass of your ship; if a lot of Inline Reaction Wheels are required to get a large ship off the ground, it should be considered to drop them with earlier stages when they are no longer needed. | Each Inline Reaction Wheel adds 0.12 tons to the mass of your ship; if a lot of Inline Reaction Wheels are required to get a large ship off the ground, it should be considered to drop them with earlier stages when they are no longer needed. | ||
Revision as of 21:16, 5 March 2015
 | This page or section is in need of being brought up to date. Please help Kerbal Space Program Wiki by fixing inaccurate or outdated information. The SAS went through an overhaul and the properties of this part might need to be updated. |
- For the equivalent part in the Demo, see S.A.S Module
The Small Inline Reaction Wheel (previously named Inline Reaction Wheel) is a toggleable module that provides torque and SAS functionality, a sort of autopilot to stabilize and help keep a rocket on course. Since virtually every command pod in the game already provides SAS, the torque is what will interest most players. Extra torque means that the player's spaceship will rotate faster when ordered to, resulting in a more nimble feel to the craft. The Inline Reaction Wheel is the entry model reaction wheel. It is cheap, relatively light, and provides a small amount of torque compared to the other reaction wheels.
Contents
Usage
| “ | The placement does matter for reaction wheels. Generally speaking they can cause some problems if placed far from the center of mass. Imagine you are grabbing that point and rotating it. That is what the reaction wheels will try to do. You'll get offcenter rotation anywhere other then near the COM. — comment by C7, in his blog entry “Updated Information on SAS in 0.21.1” |
” |
Each Inline Reaction Wheel adds 0.12 tons to the mass of your ship; if a lot of Inline Reaction Wheels are required to get a large ship off the ground, it should be considered to drop them with earlier stages when they are no longer needed.
Product description
| “ | The inline reaction wheel system uses a series of spinning discs that are going "Very Fast", to generate the torque necessary to control a spacecraft without wasting any propellant. Please do not attempt to service this device while it is running. | ” |
Changes
- Renamed “Inline Reaction Wheel” into “Small Inline Reaction Wheel”
- Resized model and radial size from small to tiny
- Mass decreased from 0.12 to 0.05
- Torque decreased from 8 to 5
- Required electricity decreased from 24.0/min to 15.0/min
- Mass decreased from 0.3 to 0.12
- Torque decreased from 20 to 8
- Increased torque (3 → 20)
- Mass decreased from 0.5 to 0.3
- Renamed from “S.A.S Module” into “Inline Reaction Wheel”
- Mass increased from 0.07 to 0.5
- Costs electric charge
- New model and texture
- (Undocumented) Mass reduced from 0.8 to 0.07, cost reduced from 2300 to 600
- (Undocumented) Torque increased from 10 to 20, Ki/Kp/Kd changed from 1.0 / 3.0 / 5.0 to 0.0 / 5.0 / 3.5
- (undocumented) SAS now use angular momentum instead of angular velocity - takes into account inertia momentum of the ship [1]
- (undocumented) Tweaked Kd, Ki and Kp parameters
- Exposed Kd, Ki and Kp parameters for tuning the SAS module
- SAS toggle with T key
- Initial Release
Notes
