ALCS Flashcards

1
Q

What does ALCS stand for?

A

Airborne Launch Control System

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2
Q

Describe ALCS.

A

a secure, hardened, electronic missile launch and control system.

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3
Q

The Airborne Launch Command Control (ALCC) consists of _____.

A

ALCS & UHF C3

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4
Q

What is the function of ALCS?

A

to allow the ALCC to act as a secure, alternative control center for the selective programming and launch of the Minuteman and Peacekeeper (ICBM) force; act as an airborne relay station

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5
Q

Where is the ALCS Processor located?

A

C1 cabinet ALCS bay

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6
Q

What are the power requirements for the ALCS Processor?

A

115 VAC 400 Hz from PROC c/b/ on E42-2

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7
Q

What is the function of the ALCS Processor?

A

to provide overall control of all ALCS functions

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8
Q

What does the ALCS Processor do to complete the system recovery when a nuclear event is detected?

A

Powers down; Powers up; Performs a self-test routine; Reloads the boot-block to reboot the system; Loads the AOP/S

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9
Q

What two operational software programs does ALCS utilize?

A

Airborne Operational Program (AOP)

Airborne Operational Program/ Secure (AOP/S)

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10
Q

The ALCS Controller is made up of _____.

A

ALCS Processor & ALCS Interface Unit

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11
Q

What is the function of the ALCS Controller?

A

performs status gathering, launch control, and targeting functions & controls the ALCS in support of Peacekeeper and Minuteman Weapon Systems

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12
Q

Where are the Mass Storage Device/ Loader (MSD/L) and Portable Storage Unit (PSU) located?

A

C1 cabinet, accessible through Battlestaff Compartment

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13
Q

What are the power requirements for the Mass Storage Device/ Loader (MSD/L)?

A

115 VAC 400 Hz from MSD/L c/b on E42-2

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14
Q

What is the function of the Mass Storage Device/ Loader (MSD/L)?

A

receive commands from ALCS Controller;
read & TX data from PSU to ALCS Controller;
support loading of programs & data into ALCS Controller memory

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15
Q

The Mass Storage Device/Loader (MSD/L) houses _____.

A

PSU; read/write electronics, timing, & logic control; interface drivers & receivers; a power supply

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16
Q

Where are the Multifunction Selectors (MFS) located and how many are there?

A

2 total

Right-hand Battlestaff console

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17
Q

What are the power requirements for the Multifunction Selector (MFS)?

A

115 VAC 400 Hz & 28 VDC from Display Set Controller

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18
Q

What is the function of the Multifunction Selector (MFS)?

A

to provide the means for the primary operator to interface with the ALCS

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19
Q

Where are the Visual Display Units (VDU) located and how many are there?

A

2 total
Right-hand Battlestaff console
SIOP Advisor & ALCS Officer stations

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20
Q

What are the power requirements for the Visual Display Unit (VDU)?

A

115 VAC 400 Hz from Display Set Controller

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21
Q

What is the function of the Visual Display Unit (VDU)?

A

to provide a data/launch key interface for acceptance of logic data from the ALCS Controller

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22
Q

Where are the Display Set Controllers located and how many are there?

A

2 total

C1 cabinet

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23
Q

What are the power requirements for the Display Set Controllers?

A

115 VAC 400 Hz from DSC 1 & 2 c/bs on E42-2

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24
Q

What is the function of the Display Set Controller?

A

perform the timing and control function for the MFSs and the VDUs

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25
Q

What components does the Display Set Controller interface with?

A

ALCS Controller; MFSs; VDUs; ALCS Keyboard

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26
Q

Where is the KI-45 located?

A

C1 cabinet, accessible through Battlestaff compartment

27
Q

What are the power requirements for the KI-45?

A

+7.9 VDC from CRPS

28
Q

What is the function of the KI-45?

A

decrypt the Minuteman & Peacekeeper launch-critical command codes (mode A); encrypt or decrypt Peacekeeper Target Constants Generation (TCG) or Peacekeeper message data (mode B)

29
Q

Where is the Volatile Keying Assembly (VKA) located and how may are there?

A

2 total; A & B

in KI-45

30
Q

What are the power requirements for the Volatile Keying Assembly (VKA)?

A

+7.9 VDC from CRPS

31
Q

What is the function of the Volatile Keying Assembly (VKA)?

A

to act as classified crypto elements that are used to store crypto-variable information

32
Q

Where is the ALCS Printer located?

A

Right-hand Battlestaff console

33
Q

Describe the ALCS Printer?

A

33 characters/line; 2000 lines/minute; standard 64 character ASCII subset is printed in dot matrix format; dry, electrostatic, & nonimpact printing process; paper roll is 150’ long & 4” wide

34
Q

What are the power requirements for the ALCS Printer?

A

115 VAC 400 Hz from PRT c/b on E42-2

35
Q

What is the function of the ALCS Printer?

A

to provide a hard copy historical output of in-flight mission functions; TCG constants sets status, TCG case inputs, & equivalent fault log

36
Q

Where is the ALCS Keyboard located?

A

Right-hand Battlestaff console

37
Q

What are the power requirements for the ALCS Keyboard?

A

+5 VDC from either Multifunction Selector (MFS)

38
Q

What is the function of the ALCS Keyboard?

A

to act as a data entry device when it is connected to either MFS

39
Q

Where is the Waveform Converter located?

A

C1 cabinet

40
Q

What are the power requirements for the Waveform Converter?

A

+5 VDC, +15 VDC, -15 VDC, +28 VDC from ALCS Power Supply

41
Q

What is the function of the Waveform Converter?

A

to process all ALCC I/O; convert digital data generated by the ALCS Controller to either diphase, biphase, or FSK mode for transmission

42
Q

Where is the Demodulator/Decoder located?

A

C1 cabinet

43
Q

What are the power requirements for the Demodulator/Decoder?

A

+5 VDC, +15 VDC, -15 VDC, +28 VDC from ALCS Power Supply

44
Q

What is the function of the Demodulator/Decoder?

A

to process the uplink & downlink status messages received by the R/T

45
Q

Where is the Tempest Isolation Filter located?

A

C1 cabinet

46
Q

What are the power requirements for the Tempest Isolation Filter?

A

+15 VDC, -15 VDC, +5.1 VDC from Waveform Converter

47
Q

What is the function of the Tempest Isolation Filter?

A

to prevent inadvertent transmission of classified data

48
Q

Where is the ALCS Power Supply located?

A

C1 cabinet

49
Q

What are the power requirements for the ALCS Power Supply?

A

115 VAC 400 Hz from ALCS PS c/b on E42-2

50
Q

What is the function of the ALCS Power Supply?

A

convert 115 VAC aircraft power into regulated DC power & to provide +5 VDC, +15 VDC, -15 VDC, & +28 VDC to the ALCS Power Control Panel, Demodulator/Decoder, & Waveform Converter

51
Q

Where is the Code Retaining Power Supply (CRPS) located?

A

C1 cabinet

52
Q

What are the power requirements of the Code Retaining Power Supply (CRPS)?

A

115 VAC 400 Hz from CRPS c/b on E42-2

53
Q

What is the function of the Code Retaining Power Supply (CRPS)?

A

to convert aircraft AC power to a regulated +7.9 VDC for ALCS processor equipment

54
Q

What happens if input power to the Code Retaining Power Supply (CRPS) is lost?

A

an internal battery supplies output power to the ALCS processor equipment for up to 3 minutes

55
Q

Where is the ALCS Power Control Panel located?

A

Right-hand Battlestaff console/ ALCS officer’s position

56
Q

What are the power requirements for the ALCS Power Control Panel?

A

28 VDC from ALCS Power Supply

57
Q

What is the function of the ALCS Power Control Panel?

A

to control input power, using 28 VDC power; toggle relays to apply power to E42-2

58
Q

Where is the ALCS Consent Switch located?

A

fwd right-hand Battlestaff console/ AEAO position

59
Q

What are the power requirements for the ALCS Consent Switch?

A

Passive

60
Q

What is the function of the ALCS Consent Switch?

A

to work in conjunction with the KI-45 CCC/ENABLE switch to allow for the encryption of encrypted secure codes & the transmission of classified commands

61
Q

Where is the 70 MHz Select Switch (I Box) located?

A

C2 cabinet

62
Q

What are the power requirements for the 70 MHz Select Switch (I Box)?

A

28 VDC from MODE SEL c/b on P30 DISTR 2

63
Q

What is the function of the 70 MHz Select Switch (I Box)?

A

interface the UHF C3 with ALCS; completes the 70 MHz RF selection and access circuit

64
Q

What are the power requirements for the ALCS Interface Unit?

A

115 VAC 400 Hz from I/O AND MEM c/b on E42-2