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SpX Avionics > Avionics > Flashcards

Avionics Flashcards

Learn critical avionics components.

1
Q

What is the primary purpose of the “Comm” Flight Computer?

A

The “Comm” flight computer acts as a bridge between HLS and Orion, and also runs all the cabin systems.

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2
Q

What is the primary purpose of the “Deck” Flight Computer?

A

The “Deck flight computer runs all the systems in the garage and airlocks, and isolates the vehicle from all systems driven by the “Main” computer.

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3
Q

What is the primary purpose of the “Main” Flight Computer?

A

It runs all the critical vehicle propulsion and control systems.

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4
Q

What is the primary purpose of the “Gateway” Flight Computer?

A

IT connects to the Ground Infrastructure through the Quick Disconnect (QD).

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5
Q

How many computer strings does the V4H flight computer?

A

3

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6
Q

What is the Fault Tolerance for this hardware for LOM?

A

1FT to LOM

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7
Q

What is Fault Tolerance to LOC?

A

2FT to credible catastrophic hazards that result in LOC.

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8
Q

Where do the flight computers reside?

A

Comm FC is in forward nose, Deck and Main computers are in Garage, and Gateway computer is in Aft.

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9
Q

What is the box I/O for the flight computer

A

3x RS-422 (1 per string); 6x 1000Base-T Ethernet connections (2 per string)

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10
Q

What is the primary purpose of the Sensor DAQ?

A

To sense vehicle temperatures and pressure sensors

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11
Q

What is the Fault Tolerance for the Sensor DAQ?

A

1 FT to any single network, power or microcontroller fault (requires 2 of 3 strings to work for voting)

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12
Q

What is the Box I/O for the Sensor DAQ

A

3x 100Base-TX Ethernet inputs; 18x RTD

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13
Q

What is the primary purpose of the Stage Controller?

A

To actuate valves, read pressure transducers and RTDs.

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14
Q

What is the box I/O for the Stage Controller?

A

2x100Base-TX Ethernet inputs; 12 x Valve drivers; 6x RTDs

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15
Q

What is the FT of the Stage Controller?

A

1 FT to power, network, and microcontroller faults.

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16
Q

What components make up the Flight Computation System?

A

4 V4H Flight Computers. The Comm, Deck, Main and Gateway.

17
Q

What is the purpose of the Display Computer?

A

To control vehicle displays on the bridge and airlock.

18
Q

What is the box I/O for the Display computer?

A

1x48Vdc; 1x1000Base-T Ethernet input; 1x LVDS display connection (tentative), 1x 12Vdc power output, 1x USB for touch feedback

19
Q

What is the Fault Tolerance for the Display Computer

A

0 FT to vehicle network and power faults on bridge

20
Q

What is the primary purpose of the Backbone Hub?

A

To distribute vehicle power and communications.

21
Q

What are the box I/O for the Backbone Hub?

A

2xHV DC pwr inputs, 2x 1000Base-T Ethernet input, 12x 48Vdc switched outputs, 12x 1000Base-T Ethernet outputs.

22
Q

What is the Fault Tolerance of the Backbone Hub?

A

1 FT to network faults (network switch internal cross-strap)
0 FT to HV inputs (takes down associated LV power output ports)(trade fixing)

23
Q

What is the primary purpose of the Lighting-Bolt Controller

A

To provide lighting drivers and provides capability to activate Frangibolts.

24
Q

What is the Box I/O of the LightingBolt Controller?

A

2x48Vdc power inputs, 2x100Base-TX Ethernet inputs, 12x constant current outputs

25
Q

What is the Fault tolerance for the lighting bolt controller?

A

1FT. Any single network, power or microcontroller fault results in a loss of one string of constant current outputs.

26
Q

What is the primary purpose of the Audio/Button Controller?

A

To provide hardline audio capability to the vehicle. Drives speakers, headsets, reads microphones and senses buttons.

27
Q

What is the fault tolerance of the Audio/Button Controller?

A

1 FT to network, power, and microcontroller faults.

28
Q

What is the primary purpose of the StarTrekker?

A

To determine vehicle attitude using star tracking.

29
Q

What are the box I/O for the StarTrekker?

A

1x 48Vdc power input, 1x 100Base-TX Ethernet

30
Q

What is the fault tolerance for the StarTrekker?

A

0 FT to all faults

31
Q

What is the primary purpose of the TRN NavCam?

A

To calculate vehicle position relative to lunar surface using terrain relative navigation imaging.

32
Q

What is the box I/O for the TRN NavCam?

A

1x 48Vdc power input, 1x 100Base-TX Ethernet

33
Q

What is the fault tolerance for the TRN NavCam?

A

0 FT to all faults.

SpX Avionics (1 decks)

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