Difference between revisions of "RV-105 RCS Thruster Block"

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(This applies to *any* part attached to *any* overheating engine, so no need to point out this interaction specifically)
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{{Partbox
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{{:RV-105 RCS Thruster Block/Box}}
|Name=RV-105 RCS Thruster Block
 
|Role=Reaction Control System
 
|Class=RCSModule
 
|File=Rcsblock.jpg
 
|Costs=450
 
|Mass=0.05
 
|Drag=0.001
 
|Tolerance=15
 
|Temp=3600 K
 
|More=
 
{{PB-more|Maximum Thrust|1 kN (each direction)}}
 
{{PB-more|Isp (vacuum)|260}}
 
{{PB-more|Isp (1 atm)|100}}
 
{{PB-more|Fuel Consumption (vacuum)|0.0784}}
 
{{PB-more|Fuel Consumption (1 atm)|0.2039}}
 
{{PB-more|Thrust vectors|4}}
 
|since=0.11.0
 
|cfg=Parts/RCS block/part.cfg
 
}}
 
  
The '''RV-105 RCS Thruster Block''' is used for spaceship rotation and translation movement and is fueled by [[FL-R25 RCS Fuel Tank]].
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The '''RV-105 RCS Thruster Block''' is a part with four [[RCS]] thrusters used for spaceship rotation and translation movement and is fuelled by [[monopropellant]].
  
 
== Usage ==
 
== Usage ==
RCS thrusters are used to rotate and translate the ship, and can do so outside of the atmosphere unlike canards and control surfaces. They need fuel from an [[FL-R25 RCS Fuel Tank | RCS Fuel Tank]] but do not need to be placed on the tank itself, unlike the larger engines. When you don't want to spend fuel you can toggle the RCS thruster system on and off with the R key. RCS thrusters work together with the [[Command Pod Mk1 | Command Pod's]] control moment gyroscopes and the [[Advanced S.A.S. Module|Advanced S.A.S.]] system.
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This RCS thruster can produce a force in any of the directions its nozzles are pointing. Four of these blocks equally spaced around the center of mass of a vessel is typically enough to allow a small craft to rotate and translate in any direction, but larger ships often require more. In the current paid version (but not the 0.18.3 demo), it has "<code>PhysicsSignificance = 1</code>", making it a [[physicsless part]] that adds its mass and drag to its parent part.
 
 
The little cold gas thrusters are still powerful enough to be used instead of liquid engines for major orbit changes with smaller ships. This capability is useful for docking. For adjusting heading, it is helpful to have the [[SAS|S.A.S.]] on to prevent unwanted rotation.
 
 
 
The positioning of your RCS thrusters is very important. They should be placed as far from the center of mass as possible to give them maximum leverage. You should mount at least 4 RCS thruster blocks around the nose and tail of large rockets. Beware, they will be fatally damaged if they brush against the ground.
 
 
 
== Description ==
 
In real life, RCS stands for '''R'''eaction '''C'''ontrol '''S'''ystem, a name for the system used to control the [[attitude]] of a spacecraft rather than its orbital velocity.
 
  
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== Product description ==
 
{{Quote
 
{{Quote
 
|The recent discovery of a third law of physics made it possible for STEADLER Corps engineers to produce these small monopropellant thrusters, to help with attitude control and linear motion. Even though many Kerbal physicists still dispute the validity of this new law, studies show that the thrusters seem to work as advertised.
 
|The recent discovery of a third law of physics made it possible for STEADLER Corps engineers to produce these small monopropellant thrusters, to help with attitude control and linear motion. Even though many Kerbal physicists still dispute the validity of this new law, studies show that the thrusters seem to work as advertised.
|STEADLER Engineering Corps}}
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}}
 
 
The third law of physics referenced in the quote is likely a reference to [http://en.wikipedia.org/wiki/Newton's_laws_of_motion#Newton.27s_third_law Newton's third law of motion], which says that every force generates an equal counter-force. That's exactly how monopropellant thrusters (or rather any kind of rocket thrusters) work: when expelling propellant with a specific force, an equal force pushes the spacecraft in the opposite direction.
 
  
== Trivia ==
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The third law of physics referenced in the quote is likely a reference to [[w:Newton's laws of motion#Newton's third law Newton's|third law of motion]], which says that every force generates an equal counter-force. That's exactly how monopropellant thrusters or rather any kind of [[reaction engine]]s work: When expelling propellant with a specific force, an equal force pushes the spacecraft in the opposite direction.
Between their introduction in 0.11 and 0.17.1 (including the old 0.13.3 demo), all RCS blocks were massless and dragless, despite the CFG file values. Since 0.18 (including the new 0.18.3 demo), RCS blocks have the expected mass values.
 
  
 
== Changes ==
 
== Changes ==
;{{Version|0.18.2|}}
+
;[[1.7]]
 +
* New model and texture
 +
* entryCost decreased from 3400 to 1200
 +
* Cost decreased cost from 620 to 45
 +
* Mass decreased from 0.05 to 0.04
 +
;[[0.23.5]]
 +
* "PhysicsSignificance = 1" added. The part now has 0 mass and drag, despite the listed values. (As of 1.0.1 this flag works differently and these values are meaningful again.)
 +
;[[0.18.2]]
 
* Nominal performance increased, bug providing vastly superior linear performance removed.
 
* Nominal performance increased, bug providing vastly superior linear performance removed.
;{{Version|0.18|}}
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;[[0.18]]
* Retextured, given Isp values and actual mass.
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* Retextured, given I<sub>sp</sub> values and actual mass.
;{{Version|0.11.0|}}
+
;[[0.11]]
 
* Initial Release
 
* Initial Release
  
 
{{Parts}}
 
{{Parts}}
 +
[[Category: RCS thrusters]]

Revision as of 16:01, 12 November 2020

RV-105 RCS Thruster Block
Part image
by
STEADLER Engineering Corps

Radial size Radial mounted
Cost (total) 45.00 Funds
Mass (total) 0.04 t [N 1]
Drag 0.001 [N 1]
Max. Temp. 1500 K
Volume 40 l
Impact Tolerance 15 m/s
Research Flight control.png Advanced Flight Control
Unlock cost 1 200 Funds
Since version 0.11.0
Part configuration rcsBlockRV-105.cfg
Maximum thrust (1 atm) 0.42 kN
(vacuum) 1.00 kN
Isp (1 atm) 100 s
(vacuum) 240 s
Fuel consumption 0.11 Units of fuel/s


Thrust vectoring No
Thrust vectors 4 (sideways)

  1. 1.0 1.1 The mass and drag are from the part config, but the game handles it as physicsless.

The RV-105 RCS Thruster Block is a part with four RCS thrusters used for spaceship rotation and translation movement and is fuelled by monopropellant.

Usage

This RCS thruster can produce a force in any of the directions its nozzles are pointing. Four of these blocks equally spaced around the center of mass of a vessel is typically enough to allow a small craft to rotate and translate in any direction, but larger ships often require more. In the current paid version (but not the 0.18.3 demo), it has "PhysicsSignificance = 1", making it a physicsless part that adds its mass and drag to its parent part.

Product description

The recent discovery of a third law of physics made it possible for STEADLER Corps engineers to produce these small monopropellant thrusters, to help with attitude control and linear motion. Even though many Kerbal physicists still dispute the validity of this new law, studies show that the thrusters seem to work as advertised.

The third law of physics referenced in the quote is likely a reference to third law of motion, which says that every force generates an equal counter-force. That's exactly how monopropellant thrusters or rather any kind of reaction engines work: When expelling propellant with a specific force, an equal force pushes the spacecraft in the opposite direction.

Changes

1.7
  • New model and texture
  • entryCost decreased from 3400 to 1200
  • Cost decreased cost from 620 to 45
  • Mass decreased from 0.05 to 0.04
0.23.5
  • "PhysicsSignificance = 1" added. The part now has 0 mass and drag, despite the listed values. (As of 1.0.1 this flag works differently and these values are meaningful again.)
0.18.2
  • Nominal performance increased, bug providing vastly superior linear performance removed.
0.18
  • Retextured, given Isp values and actual mass.
0.11
  • Initial Release