Reaction Control System/ja

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< Reaction Control System
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The Reaction Control System, mostly just called RCS, is a set of monopropellant-fuelled (with the exception of the Vernor Engine) small thrusters primarily intended for orienting vessels in vacuum. It is toggled on and off by pressing the R key (default key binding). In order to use RCS, a dedicated RCS fuel tank along with some RCS thrusters are needed. The fuel tanks for RCS are different from solid or liquid fuels tank, and currently come in five options, one for each radius, and two side-mounted types.

It should also be noted that the SAS system will make use of the thrusters. To avoid a constant drain of RCS fuel, it is recommended to not have both the RCS and the SAS systems enabled at the same time, unless you need to keep your ship dead level and/or have RCS fuel to spare.

In real life it's the system used to control the attitude of a spacecraft rather than its orbital velocity.

Placement

The thrusters can be located anywhere on a ship. Unlike jet and liquid fuel engines, there is no need to place RCS thrusters on RCS fuel tanks or manually run fuel lines to them. The thruster block can provide full rotation control, whereas the linear port can only provide thrust in one direction. It is advisable to place the thrusters as far away from your centre of mass as possible, thus maximising the torque (turning force) they generate.

It is typically most practical to place them with four way symmetry as this can provide the best control. In theory, you can provide suitable roll, pitch and yaw control with just one set of four way thruster blocks. Translation manoeuvres however are much easier when the thrusters for one direction are evenly distributed on both sides of the center of mass so they don't apply torque. This is usually accomplished with one set at the top and another one at the bottom of your rocket. The SAS may dampen unintentional changes of heading during translation movement.

Beware, they will be fatally damaged if they brush against the ground.

Trivia

Between their introduction in 0.11 and 0.17.1 (including the old 0.13.3 demo), all RCS thrusters were massless and dragless, despite the CFG file values. Between 0.18 and 0.23 (including the 0.18.3 demo), RCS thrusters have the expected mass values. They were explicitly made massless parts again in 0.23.5.

燃料タンク

RCS燃料密度=4 kg/ユニット 質量
(t)
一液式
推進剤

(Units of fuel)
画像 パーツ名称 サイズ コスト
(Funds)
合計 乾燥 耐熱温度
(K)
衝撃耐性
(m/s)
耐久
(加速度)
(G)
FL-R10.png
FL-R20 RCS燃料タンク S 200
(176)
0.10 0.02 2 000 12 50 20
FL-R25 FT.png
FL-R120 RCS燃料タンク M 330
(186)
0.56 0.08 2 000 12 50 120
FL-R1 Yellow.png
FL-R750 RCS燃料タンク L 1 800
(900)
3.4 0.4 2 000 12 50 750
Mk2 Monopropellant Tank.png
Mk2 一液式推進剤タンク Mk2 750
(270)
1.89 0.29 2 500 50 50 400
Mk3 Monopropellant Tank.png
Mk3 一液式推進剤タンク Mk3 5 040
(2 520)
9.8 1.4 2 700 50 50 2 100
Stratus-v roundified monopropellant tank.png
ストラタスV 球形一液式推進剤タンク X 200
(176)
0.10 0.02 2 000 12 50 20
Stratus-V Cylindrified.png
ストラタスV 円筒形一液式推進剤タンク X 250
(190)
0.23 0.03 2 000 12 50 50


スラスター

画像 パーツ名称 サイズ コスト
(Funds)
質量
(t)
耐熱温度
(K)
衝撃耐性
(m/s)
耐久
(加速度)
(G)
推力
(kN)
燃料
(Units of fuel/秒)
比推力 () (1気圧) 比推力 () (真空)
RV-1X.png
RV-1X 可変式スラスターブロック 側面設置 30 0.005 1 500 12 50 0.1 0.01 100 240
PlaceAnywhere1.png
リニアRCSポートを1つ、どこかに配置 側面設置 15 0.001 1 500 12 50 0.2 0.02 100 240
RV-105.png
RV-105 RCSスラスターブロック 側面設置 45 0.04 1 500 15 50 1.0 0.11 100 240
Linear RCS.png
プレイスエニウェア7 リニアRCSポート 側面設置 25 0.02 2 600 15 50 2.0 0.21 100 240
Vernor.png
ヴァーナーエンジン[注意 1] 側面設置 150 0.08 2 000 15 50 12.0 0.94 140 260
  1. ヴァーナーエンジンは液体燃料酸化剤を混合使用する。