Test Director (TD): Bayanni Rivera

  • Final authority at the test site
  • Oversees safety, test timeline, aborts, holds, go/no-go decisions

Safety Officer (SAFE): Ittai Kohavi

  • Capable of overriding TD based off safety concerns

bluShift Operator (BO): Gerard Desjardins

  • Oversees test operations and safety on behalf of bluShift

Test Conductor (TC): Jordan Tran

  • Leads execution of the SOP
  • Coordinates actions by the RO, SO, and DAQ operators.

Remote Operator (RO): Joshua Piety

  • Operates the Papyrus interface to actuate valves and other systems.
  • Must understand how each control maps to system hardware.

Test Stand Operator (SO): Bayanni Rivera

  • The only person permitted to approach and service the test stand without explicit approval from the TD or TC.

Data Systems Operators (DAQ): Ethan Lai

  • Set up and monitor all sensor systems, logging equipment, and Papyrus System radio communications integrity
  • Troubleshoot DAQ-related issues during the test.

Camera Operator (CAM): Brandon Garcia

  • Sets up, activates, and monitors all video recording systems.
  • Ensures proper camera positioning and synchronization with the test timeline.

Recorder (REC): Brandon Garcia

  • Documents the test in real time. Logs major events, timing, and operator callouts.

B. Valve Actuation, DAQ Verification, and Ensuring Everything is Closed

NOTE: Nitrous bottle tank valve actuator (OKVA-1) cannot be attached to the tank valve during this step.

Personnel approaching the test stand MUST wear:

  • Safety glasses
  1. ☐ SO: Check all pressure gauges read 0 psi
    1. ☐ DAQ IN CONJUNCTION: Verify behavior and performance of pressure transducers, thermocouples, and load cells. Verify data logging functional.
  2. Actuate solenoid and servo valves:

NOTE: TC waits for confirmation from SO before next command 

  1. ☐☐ RO: Relay on NFV-1 then relay off NFV-1.

☐☐ SO: Verify the Nitrogen Fill Valve (NFV-1) is operational.

NOTE: You will hear a loud click at the valve for open, and a softer click for close.

  1. ☐☐ RO: Relay on NVV-1 then relay off NVV-1.

☐☐ SO: Verify the Nitrogen Vent Valve (NVV-1) is operational.

  1. ☐☐ RO: Relay on OVV-1, relay off OVV-1 (leave it open)

☐☐ SO: Verify the Oxidizer Vent Valve (OVV-1) is operational.

  1. ☐☐ RO: Relay on FVV-1 then relay off FVV-1 (leave it open)

☐☐ SO: Verify the Fuel Vent Valve (FVV-1) is operational.

  1. ☐☐ RO: Execute commands to open FTV-1, then close FTV-1

☐☐ SO: Verify the Fuel Throttle Valve (FTV-1) is operational.

NOTE: You will hear the servo running after each command.

  1. ☐☐ RO: Execute commands to open OTV-1, then close OTV-1

☐☐ SO: Verify the Oxidizer Throttle Valve (OTV-1) is operational with accurate sets to desired angle.

  1. ☐☐ RO: Relay on FTV-2 then relay off FTV-2.

☐☐ SO: Verify the Fuel Throttle Valve (FTV-2) is operational.

  1. ☐☐ RO: Relay on OTV-2 then relay off OTV-2.

☐☐ SO: Verify the Oxygen Throttle Valve (OTV-2) is operational.

  1. ☐☐ RO: Relay on OVV-2 then relay off OVV-2.

☐☐ SO: Verify the Oxygen Vent Valve (OVV-2) is operational.

    1. ☐ SO: Open NKV-1.
    2. ☐ SO: Set NPR-1 to 100 psi using NPG-2
    3. ☐ RO: Relay on NFV-1.
    4. ☐ SO: Set NPR-2 to 100 psi using NPG-4
  • NOTE: If iso line is overpressurized, valves will automatically begin to leak. To step down the pressure, hold blue relief button on valves while unscrewing NPR-2.
  1. Actuate pneumatic valves:
    1. ☐☐ RO: Relay on OFV-1 then relay off OFV-1.

☐☐ SO: Verify the Oxidizer Fill Valve (OFV-1) is operational.

NOTE: You will hear the fill valve actuate.

  1. ☐☐ RO: Relay on FDV-1 then relay off FDV-1.

☐☐ SO: Verify FDV-1 is operational.

  1. ☐☐ RO: Relay on FPV-1 then relay off FPV-1

☐☐ SO: Verify the Fuel Press Valve (FPV-1) is operational

  1. ☐☐ RO: Relay on OPV-1 then relay off OPV-1

☐☐ SO: Verify the Oxidizer Press Valve (OPV-1) is operational

  1. ☐☐ RO: Relay on ODV-1 then relay off ODV-1.

☐☐ SO: Verify the ODV-1 is operational

  1. ☐☐ RO: Leave the test stand and approach the control station
  2. ☐ RO: Repeat “Actuate solenoid and servo valves” and “Actuate pneumatic valves” steps from the control station
  3. ☐ CAM: Confirm cameras are secured and notify SO of their placement location.

C. System Purging and Leak Test

NOTE: This section assumes NPR-1, NPR-2, and all valves are in the same state as the end of section B.

Personnel approaching the test stand MUST wear:

  • Safety glasses
  1. ☐ SO: Approach test stand.
  2. ☐ SO: Remove all blue tape covering openings to uncover vent holes  in the oxidizer system
  3. ☐ REC: Record NPG-1 from SO callout.
  4. ☐ SO: Open NMV-1.
  5. ☐ SO: Apply soapy water to all connections upstream of the press valves (OPV-1 and FPV-1).
    1. ☐ RO: Check battery voltages while SO is applying soapy water
  6. ☐ SO: Step away from the immediate vicinity of the test stand.
  7. ☐ RO: Relay on NFV-1.
  8. ☐ DAQ: Confirm NPT-1 reads NPG-1 and NPG-2 pressure
  9. ☐ SO: Approach test stand and check for leaks.
    1. Observe connections for leaking gas.
    2. If a bubble expands slowly and pops, it is a sign of a leak.
    3. If a leak is detected, proceed to “If any leaks are documented, fix the leak.” step at the bottom of this section.
  10. ☐ SO: Set FPR-1 to 200 psi
  11. ☐ REC: Record NPG-3 and NPG-4 from SO callout
  12. ☐ SO: Set OPR-1 to 200 psi
  13. ☐ REC: Record NPG-5 and NPG-6 from SO callout
  14. ☐ SO: Apply soapy water to all connections.
  15. ☐ SO: Return to control station.
  16. ☐ RO: Relay on OVV-1 (closes it)
  17. ☐ RO: Relay on OPV-1 to open the oxidizer press valve.
  18. ☐ DAQ: Wait until OPT-1 stabilizes at 200 psi. 
  19. ☐ RO: Relay off NFV-1.
  20. ☐ DAQ: Callout to REC the starting pressure from NPT-1 and monitor the pressure for 1 minute.
    1. Verify that the pressure does not drop more than 5 psi within the 1-minute period.
    2. If the pressure drop exceeds 5 psi in 1 minute, this indicates a potential leak.
    3. If a leak is detected, proceed to “If any leaks are documented, fix the leak.” step at the bottom of this section.
  21. ☐ SO: Approach and check for leaks.
    1. Observe connections for leaking gas.
    2. If a bubble expands slowly and pops, it is a sign of a leak.
    3. If a leak is detected, proceed to “If any leaks are documented, fix the leak.” step at the bottom of this section.
  22. ☐ SO: Step away from the immediate vicinity of the test stand.
  23. ☐ RO: Execute command to open OTV-1
  24. ☐ RO: After 5 seconds, relay off OPV-1 
  25. ☐ DAQ: Wait until OPT-1 reads about ambient pressure.
  26. ☐ RO: Execute command to close OTV-1
  27. ☐ RO: Relay off OVV-1 (opens it)
  28. ☐ RO: Relay on NFV-1.
  29. ☐ RO: Relay on FVV-1 (closes it)
  30. ☐ RO: Relay on FPV-1 to open the Fuel Press Valve.
  31. ☐ DAQ: Wait until FPT-1 stabilizes at 200 psi. 
  32. ☐ RO: Relay off NFV-1.
  33. ☐ DAQ: Callout to REC the starting pressure from NPT-1 and monitor the pressure for 1 minute.
    1. Verify that the pressure does not drop more than 5 psi within the 1-minute period.
    2. If the pressure drop exceeds 5 psi in 1 minute, this indicates a potential leak.
    3. Proceed to step 34 to identify the leak location.
  34. ☐ SO: Approach and check for leaks.
    1. Observe connections for leaking gas.
    2. If a bubble expands slowly and pops, it is a sign of a leak.
    3. If a leak is detected, proceed to “If any leaks are documented, fix the leak.” step at the bottom of this section.
  35. ☐ SO: Step away from the immediate vicinity of the test stand.
  36. ☐ RO: Execute commands to open FTV-1
  37. ☐ RO: After 5 seconds, relay off FPV-1
  38. ☐ DAQ: Wait until FPT-1 reads ambient pressure.
  39. ☐ RO: Execute commands to close FTV-1
  40. ☐ RO: Relay off FVV-1 (opens it)
  41. ☐ SO: Approach test stand.
  42. ☐ SO: Check battery voltages
  43. ☐ SO: Close NKV-1
  44. ☐ SO: Return to control station
  45. ☐ RO: Relay on NVV-1.
  46. ☐ DAQ: Confirm when NPT-1 reads ambient pressure.
  47. ☐ RO: Relay off NVV-1.
  48. ☐ SO: Approach test stand.
  49. ☐ SO: Close all open pressure regulators (NPR-1, NPR-2, OPR-1, FPR-1).
  50. ☐ SO: Manually vent all iso valves (OIV-1, FIV-1, OIV-2, FIV-2, OIV-3).
    1. NOTE: Iso solenoid valves are vented by pressing the blue button.
  51. If any leaks are documented, fix the leak.
    1. ☐ Depressurize and safe the system.
    2. ☐ Remove the leaking component or fitting.
    3. ☐ Inspect the component and threads for damage. Replace the component if necessary.
    4. ☐ Remove any existing PTFE (Teflon) tape from the threads.
    5. ☐ Reapply PTFE tape with at least 3 full tight wraps in the direction of the threads clockwise.
    6. ☐ Reinstall the component and tighten.


NOTE: Components that come in contact with NOX MUST be ox-cleaned, and all connected fittings left on the test stand MUST be sealed off immediately after component removal. Refer to LOX Cleaning Procedure if components must be ox-cleaned.


D. ASI System Purging and Setup


Personnel approaching the test stand MUST wear:

  • Safety glasses
  1. ☐ SO: Approach fuel wall.
  2. ☐ SO: Check FKV-1 and FPR-2 are closed.
  3. ☐ SO: Approach oxidizer wall.
  4. ☐ SO: Check OKV-2 and OPR-2 are closed.
  5. ☐ SO: Approach test stand.
  6. ☐ SO: Open NKV-2.
  7. ☐ SO: Set NPR-3 to 100 psi .
  8. ☐ SO: Open NMV-3.
  9. ☐ SO: After 5 seconds, close NMV-3
  10. ☐ SO: Open NMV-4.
  11. ☐ SO: After 5 seconds, close NMV-4
  12. ☐ SO: Step away from the immediate vicinity of the test stand.
  13. ☐ SO: Set NPR-3 to 600 psi.
  14. ☐ SO: Open FKV-1.
  15. ☐ REC: Record FPG-4 from SO callout
  16. ☐ SO: Set FPR-2 to 550 psi
  17. ☐ REC: Record FPG-5 from SO callout
  18. ☐ SO: Approach OW
  19. ☐ SO: Open OKV-2
  20. ☐ REC: Record OPG-4 from SO callout
  21. ☐ SO: Set OPR-2 to 430 psi
  22. ☐ REC: Record OPG-5 from SO callout
  23. ☐ SO: Check Oxidizer Tank Valve Actuator (OKVA-1) is secured on the Oxidizer Tank Valve (OKV-1).
  24. ☐ SO: Begin recording cameras
  25. ☐ SO: Check battery voltages 
  26. ☐ SO: Return to control station


**Insert ASI Ignition sequence**

F. Nitrogen and Fuel Tank Fill and Regulator Configuration Procedure

Personnel approaching the test stand MUST wear:

  • Safety glasses
  1. ☐ TC: Go/No-Go for fuel tank fill
    1. ☐ BO
    2. ☐ TD
    3. ☐ DAQ
    4. ☐ SO
    5. ☐ RO
    6. ☐ REC
  2. ☐ SO: Pour IPA fuel into the fuel tank (FK-1)
  3. ☐ DAQ: Check that only OVV-1 and FVV-1 are open.
  4. ☐ REC: Record the current weather outside as the ambient temperature.
  5. ☐ TC: Go/No-Go for nitrogen tank fill
    1. ☐ BO
    2. ☐ TD
    3. ☐ DAQ
    4. ☐ SO
    5. ☐ RO
    6. ☐ REC
  6. ☐ SO: Approach test stand.
  7. ☐ SO: Check NPR-1, NPR-2, FPR-1, OPR-1 are closed.
  8. ☐ SO: Open NKV-1.
  9. ☐ REC: Record NPG-1 from SO callout.
  10. ☐ SO: Set NPR-1 to 2100 psi.
  11. ☐ REC: Record NPG-2 from SO callout.
  12. ☐ SO: Open NMV-1
  13. ☐ SO: Step away from the immediate vicinity of the test stand.
  14. ☐ RO: Relay on NFV-1.
  15. ☐ SO: Approach test stand
  16. ☐ SO: Set NPR-2 to 100 psi
  17. ☐ DAQ: Confirm that NPT-1 reads NPG-2's pressure.
  18. ☐ RO: Relay off NFV-1
  19. ☐ SO: Set OPR-1 to 660 psi
  20. ☐ REC: Record NPG-6 from SO callout.
  21. ☐ SO: Set FPR-1 to 550 psi
  22. ☐ REC: Record NPG-4 from SO callout.

G. Oxidizer Loading, Propellant Pressurization, and Countdown Sequence

Personnel at the control station must wear:

  • Ear plugs
  1. ☐ SO: Open OKV-1, the nitrous tank valve
  2. ☐ SO: Return to station

ALL PERSONNEL MUST BE AT THE CONTROL STATION AND CANNOT LEAVE WITHOUT TD, BO, SAFE APPROVAL. 

  1. ☐ DAQ: Confirm that OPT-0 reads nominal value according to the ambient temperature 
  2. ☐ TC: Ensure test stand is clear of all personnel.
  3. ☐ TC: Go/No-Go for OK-1 tank fill
    1. ☐ BO
    2. ☐ TD
    3. ☐ DAQ
    4. ☐ SO
    5. ☐ RO
    6. ☐ REC
  4. ☐ REC: Record RIGHT LC-1 value from DAQ callout
  5. ☐ RO: Relay on OFV-1.
  6. ☐ DAQ: Monitor load cell data and confirm when LC-1 reaches 9.06 lbs above initial value.
  7. ☐ RO: Relay off OFV-1.
  8. ☐ RO: Relay on OVV-1 to close it
  9. ☐ DAQ: Confirm that LC-1 values stay constant
  10. ☐ REC: Record LC-1 value from DAQ callout
  11. ☐ REC: Record OPT-1 value from DAQ callout



H. Propellant Pressurization and Countdown Sequence

  1. ☐ RO: Relay on FVV-1 (closes it)
  2. ☐ RO: Relay on FPV-1
  3. ☐ DAQ: Confirm that FPT-1 value is around 550 psi
  4. ☐ REC: After FK-1 is fully pressurized, record FPT-1 value from DAQ callout
  5. ☐ RO: Relay on OPV-1
  6. ☐ DAQ: Confirm OPT-1 value is around 660 psi
  7. ☐ REC: After OK-1 is fully pressurized, record OPT-1 value from DAQ callout
  8. ☐ RO: Confirm ignite program contains the correct sequence
  9. ☐ RO: Execute commands:
    1. Servo on FTV-1 
    2. Servo on OTV-1
    3. Servo set FTV-1 0 
    4. Servo set OTV-1 0
  10. ☐ TC: Go/No-Go for ignition
    1. ☐ BO
    2. ☐ TD
    3. ☐ DAQ
    4. ☐ SO
    5. ☐ RO
    6. ☐ REC
  11. ☐ TC: Notify everyone hot fire is about to occur and put on ear protection
  12. ☐ RO: Double check radio commands work
  13. ☐ TD: Commence 5 count
  14. ☐ RO At T-0: Execute ignition sequence



I. Shutdown Sequence

Personnel approaching the test stand MUST wear:

  • Safety glasses
  • Face shield
  1. ☐ TC: Shutdown roll call
    1. ☐ BO
    2. ☐ TD
    3. ☐ DAQ
    4. ☐ SO
    5. ☐ RO
    6. ☐ REC
  2. ☐ DAQ: Call out when OPT-1 and FPT-1 read ambient pressure
  3. ☐ RO: Relay off FPV-1
  4. ☐ RO: Relay off OPV-1
  5. ☐ SO: Approach FW
  6. ☐ SO: Close FKV-1
  7. ☐ TC: Ask permission for SO to approach test stand:
    1. ☐ BO
    2. ☐ SO
  8. ☐ SO: Approach OW
  9. ☐ SO: Close OKV-2
  10. ☐ SO: Approach test stand
  11. ☐ SO: Close FPR-1
  12. ☐ SO: Close OPR-1
  13. ☐ SO: Set NPR-1 to 500 psi
  14. ☐ RO: Relay on NFV-1
  15. ☐ DAQ: Confirm when NK-1 reads 500 psi
  16. ☐ RO: Relay off NFV-1
  17. ☐ SO: Set FPR-1 to 80 psi
  18. ☐ SO: Set OPR-1 to 80 psi
  19. ☐ SO: Move at least 15 feet away from the test stand
  20. ☐☐☐ RO: Relay on FPV-1
  21. ☐☐☐ DAQ: Confirm that FPT-1 reads 80 psi
  22. ☐☐☐ RO: Relay off FPV-1
  23. ☐☐☐ RO: Relay on FTV-1
  24. ☐☐☐ DAQ: Confirm that FPT-1 reads ambient pressure
  25. ☐☐☐ RO: Relay off FTV-1
  26. ☐ TC: REPEAT steps with three checkboxes
  27. ☐☐☐ RO: Relay on OPV-1
  28. ☐☐☐ DAQ: Confirm that OPT-1 reads 80 psi
  29. ☐☐☐ RO: Relay off OPV-1
  30. ☐☐☐ RO: Relay on OTV-1
  31. ☐☐☐ DAQ: Confirm that OPT-1 reads ambient pressure
  32. ☐☐☐ RO: Relay off OTV-1
  33. ☐ TC: REPEAT steps with three checkboxes
  34. ☐ RO: Relay on FTV-2
  35. ☐ RO: When CPT-1 reads ambient pressure, relay off FTV-2
  36. ☐ RO: Relay on OTV-2
  37. ☐ RO: When CPT-1 reads ambient pressure, relay off OTV-2
  38. ☐ DAQ: Confirm that OPT-1 and FPT-1 read ambient pressure
  39. ☐ RO: Relay on OVV-2
  40. ☐ DAQ: Confirm OPT-0 reads < 10 psi.
  41. ☐ SO: Approach test stand
  42. ☐ SO: Close NKV-1
  43. ☐ SO: Return to control station
  44. ☐ RO: Relay on NFV-1 
  45. ☐ RO: Relay on NVV-1
  46. ☐ DAQ: Confirm NPT-1 is at ambient pressure
  47. ☐ DAQ: Confirm LC-1 reads dry weight of tank.
  48. ☐ SO: Approach test stand
  49. ☐ SO: Open NKV-2
  50. ☐ SO: Set NPR-3 to 100 psi
  51. ☐ SO: Open NMV-4
  52. ☐ SO: Open NMV-3
  53. ☐ SO: When pressure in NPG-10 is at 100 psi again, close NMV-4
  54. ☐ RO: Relay on FTV-2 for 3 seconds
  55. ☐ RO: Relay on OTV-2 for 3 seconds
  56. ☐ RO: Relay off FTV-2
  57. ☐ RO: Relay off OTV-2
  58. ☐ SO: Close NK-3
  59. ☐ RO: Relay on FTV-2 for 3 seconds
  60. ☐ RO: Relay on OTV-2 for 3 seconds
  61. ☐ DAQ: Confirm that CPT-1 reads ambient pressure
  62. ☐ RO: Relay off FTV-2
  63. ☐ RO: Relay off OTV-2
  64. ☐ SO: Close NMV-4 
  65. ☐ SO: Close NMV-3 
  66. ☐ SO: Place bucket under the manual valve under the fuel tank (FMV-2) and open FMV-2
  67. ☐ SO: Close FMV-2
  68. ☐ SO: Approach test stand
  69. ☐ SO: Open OMV-1
  70. ☐ DAQ: Confirm OPT-0 reads < 10 psi.
  71. ☐ SO: Manually vent all iso valves (OIV-1, NIV-1, FIV-1).
    1. NOTE: Iso solenoid valves are vented by pressing the blue button.
  72. ☐ CAM: Stop camera recordings and begin packing camera equipment
  73. ☐ RO/SO: Put system in safe state [see section 5 subsection C “Safe State”]
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