Reaction wheel
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Revision as of 06:54, 14 August 2013 by XZise (talk | contribs) (Created page with "A '''reaction wheel''' provides torque to a craft and allows it to rotate in space with using only electric charge and is thus available as long as there is a electric pow...")
A reaction wheel provides torque to a craft and allows it to rotate in space with using only electric charge and is thus available as long as there is a electric power generator on board.
All command modules except the EAS-1 External Command Seat have a reaction wheel and can provide torque. Adding additional parts utilising torque allows faster change in rotation.
To operate reaction wheels electric power needs to be available. The electric consumption is defined by it's torque. While command modules needs 0.1× the electric charge to generate the maximum torque (e.g. a torque of 4.2 needs 0.42 E), all dedicated parts needs only 0.3 E but supplying 20 torque (0.015×).
This is one of the systems used by the Stability Augmentation System.
Reaction wheels
- Note: This list contain the Avionics Package and the EAS-1 External Command Seat but both don't have any reaction wheels
Dedicated Units
| Image | Part | Radial size | Cost (  ) |
Mass (t) |
Max. Temp. (K) |
Tolerance (m/s) |
Tolerance (g) |
Torque (kN·m) |
Electricity (⚡/s) |
|---|---|---|---|---|---|---|---|---|---|
 |
Small Inline Reaction Wheel | Tiny | 600 | 0.05 | 2 000 | 9 | 50 | 5 | 0.25 (15 ⚡/min) |
 |
Advanced Inline Stabilizer | Small | 1 200 | 0.1 | 2 000 | 9 | 50 | 15 | 0.45 (27 ⚡/min) |
 |
Advanced Reaction Wheel Module, Large | Large | 2 100 | 0.2 | 2 000 | 9 | 50 | 30 | 0.6 (36 ⚡/min) |
Command Pods
| Image | Part | Radial size | Cost ( ) |
Mass (t) |
Max. Temp. (K) |
Tolerance (m/s) |
Tolerance (g) |
Torque (kN · m) |
S.A.S. level |
Required Crew/ Power |
Capacity (⚡) |
|---|---|---|---|---|---|---|---|---|---|---|---|
 |
Mk1 Cockpit | Small | 1 250 (1 241) |
1.28 (1.25) |
2 000 (1 100) |
40 | 50 | 10 |  [Note 1]
|
|
50 ⚡ 7.5  MP
|
 |
Mk1 Inline Cockpit | Small | 1 600 (1 591) |
1.03 (1.00) |
2 000 (1 100) |
40 | 50 | 10 | [Note 1]
|
|
50 ⚡ 7.5 MP
|
 |
Mk2 Cockpit | Mk2 | 3 500 (3 482) |
2.06 (2.00) |
2 500 (1 400) |
45 | 50 | 15 | [Note 1]
|
+
|
150 ⚡ 15 MP
|
 |
Mk2 Inline Cockpit | Mk2 | 3 500 (3 470) |
2.10 (2.00) |
2 500 (1 400) |
45 | 50 | 15 | [Note 1]
|
+
|
150 ⚡ 25 MP
|
 |
Mk3 Cockpit | Mk3, Small | 10 000 (9 880) |
3.90 (3.50) |
2 700 (1 500) |
50 | 50 | 40/40/20[Note 2] | [Note 1]
|
+
|
500 ⚡ 100 MP
|
 |
Mk1 Command Pod | Small, Tiny | 600 (588) |
0.84 (0.80) |
2 200 (1 200) |
14 | 50 | 5 | [Note 1]
|
|
50 ⚡ 10 MP
|
 |
Mk1-3 Command Pod | Large, Small | 3 800 (3 764) |
2.72 (2.60) |
2 400 (1 400) |
45 | 50 | 15 | [Note 1]
|
+
|
150 ⚡ 30 MP
|
 |
Mk1 Lander Can | Small | 1 500 (1 482) |
0.66 (0.60) |
2 000 (1 000) |
8 | 50 | 3 | [Note 1]
|
|
50 ⚡ 15 MP
|
 |
Mk2 Lander Can | Large | 3 250 (3 202) |
1.515 (1.355) |
2 000 (1 200) |
8 | 50 | 15 | [Note 1]
|
+
|
100 ⚡ 40 MP
|
 |
PPD-12 Cupola Module | Large, Small | 3 200 (3 188) |
1.80 (1.76) |
2 000 (1 000) |
8 | 50 | 9 | [Note 1]
|
|
200 ⚡ 10 MP
|
 |
EAS-1 External Command Seat | Radial mounted | 200 | 0.05 | 1 200 | 6 | 50 | — | [Note 1]
|
|
— |
 |
Probodobodyne RoveMate | Small | 800 | 0.15 | 1 200 | 12 | 50 | — | 0 | 2.4 ⚡/min (144 ⚡/h) |
120 ⚡ |
 |
Probodobodyne QBE | Tiny | 360 | 0.07 | 1 200 | 15 | 50 | — | 0 | 1.5 ⚡/min (90 ⚡/h) |
5 ⚡ |
 |
Probodobodyne HECS | Tiny | 650 | 0.1 | 1 200 | 12 | 50 | 0.5 | 1 | 1.5 ⚡/min (90 ⚡/h) |
10 ⚡ |
 |
Probodobodyne OKTO | Tiny | 450 | 0.1 | 1 200 | 12 | 50 | 0.3 | 0 | 1.2 ⚡/min (72 ⚡/h) |
10 ⚡ |
 |
Probodobodyne OKTO2 | Tiny | 1 480 | 0.04 | 1 200 | 12 | 50 | — | 2 | 1.8 ⚡/min (108 ⚡/h) |
5 ⚡ |
 |
Probodobodyne Stayputnik | Tiny | 300 | 0.05 | 1 800 | 12 | 50 | — | — | 1.67 ⚡/min (100 ⚡/h) |
10 ⚡ |
 |
Probodobodyne HECS2 | Small | 7 500 | 0.2 | 2 000 | 8 | 50 | 10 | 3 | 3.0 ⚡/min (180 ⚡/h) |
1 000 ⚡ |
 |
RC-001S Remote Guidance Unit | Small | 2 250 | 0.1 | 2 000 | 9 | 50 | 0.5 | 3 | 3.0 ⚡/min (180 ⚡/h) |
15 ⚡ |
 |
RC-L01 Remote Guidance Unit | Large | 3 400 | 0.5 | 2 000 | 9 | 50 | 1.5 | 3 | 4.8 ⚡/min (288 ⚡/h) |
30 ⚡ |
 |
MK2 Drone Core | Mk2 | 2 700 | 0.2 | 2 500 | 20 | 50 | 15/3/3[Note 2] | 3 | 3.0 ⚡/min (180 ⚡/h) |
250 ⚡ |
 |
MPO Probe | Small | 9 900 (9 854) |
0.895 (0.395) |
2 200 | 9 | 50 | 6 | 3 | 3.0 ⚡/min (180 ⚡/h) |
1 000 ⚡ 45 LF55 O
|
 |
MTM Stage | Small | 21 500 (6 300) |
0.795 (0.415) |
2 200 | 12 | 50 | 12 | 2 | 1.8 ⚡/min (108 ⚡/h) |
4 000 ⚡ 3 800  XE
|
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 In the "Career" mode in manned command modules, the performance and functionality of the SAS is determined by the presence of at least one kerbonaut with the specialization "Pilot" and the level of his specialization. In the "Science" and "Sandbox" modes, a kerbonaut with any specialization can use all the functionality of the SAS on board the manned command module without restrictions.
- ↑ 2.0 2.1 Torque differs between axes. These numbers are for pitch/yaw/roll respectively.
