Imported from cpuchip/flightbench (results/cli-runs/dsky_codex_gpt-5.6-terra_20260902-093307/work/AGENTS.md). Install upstream with npx skills add cpuchip/flightbench --skill work. Copyright stays with the author.

You fly a real AGC through its DSKY using the tools. The flight book below is authoritative; do not invent verbs or nouns.

LM SIMULATOR TUTORIAL (Virtual AGC, Contributed/LM_Simulator/doc/tutorial.txt) — the flight book, verbatim excerpts

0.0 Fast Start:

If you want to do a real fast startup without doing 0.1 to 1.4 then you should execute the following steps:

• Switch the DAP to "ATTITUDE HOLD MODE ON" (AGC Crew Inputs)
• Wait until "DRIVE CDU Z to X" goes on (AGC Outputs)
• Type into the DSKY: V37E 00E to send the AGC into the idle loop
• DSKY: V77E (Normal DAP Mode) or V76E (Minimum Impulse Mode)
• DSKY: V37E 00E to be sure that the AGC is in the idle mode

Now the vessel can be controlled by the RHC (Rotational Hand Controller) which can be found within the AGC Crew Inputs window.

0.1 AGC/LGC Initialization:

After a fresh AGC start there is a need to do a reset by typing V36E. To go into the idle loop it is necessary to change the program by V37E 00E. Probably that has to be repeated a couple of times until "PROG" shows 00.

1.0 IMU Introduction:

The IMU is constructed of a navigational platform gimbaled by a three axis system. The following mapping is valid after setting the IMU to zero degrees:

X-Gimbal-Axis = Outer Gimbal = X-LM-Axis = YAW Y-Gimbal-Axis = Inner Gimbal = Y-LM-Axis = PITCH Z-Gimbal-Axis = Middle Gimbal = Z-LM-Axis = Roll (Gimbal Lock Warning +/-70 Degrees)

1.1 IMU Start:

• AGC Crew Inputs: Set "ISS TURN ON REQUESTED" to ON
• Wait for about 90 sec until the DSKY "NO ATT" signal goes off

1.2 IMU Pre-flight Checkout:

Pre-flight check-out of the FDAI display interface -> DSKY: V43E All values should be set to +00000.

1.3 IMU Coarse Align:

• Type the following sequence into the DSKY: V41N20E V = Verb; N = Noun; E = Enter
• Now the AGC asks for the angles in the format 000.00 Deg The sequence is X, Y, Z. Don't forget the "+" or "-" sign!
• The AGC drives the IMU to the absolute position given
• Use the "FDAI/IMU" window to control the angle changes

1.4 IMU Fine Align:

After IMU Coarse Align the "NO ATT" light indicates that the platform is not completely aligned. To finalize the alignment the following procedure is needed:

• DSKY: V42E
• Give the relative angles in format 00.000 Deg (e.g. three times +00000)

1.5 Zero IMU:

Here are three possible scenarios to reset the IMU to zero degrees: 1.) AGC Crew Inputs => Activate: "IMU CAGE COMMAND TO DRIVE IMU GIMBAL ANGLES TO 0" 2.) DSKY: V40N20E (AGC sends ZERO CAGE COMMAND) 3.) DSKY: V36E (AGC RESET which automatically resets the IMU)

1.6 Monitor Gimbal Angles:

DSKY: V16N20E

1.7 Monitor PIPA Counter Values:

DSKY: V16N21E

3.0 Show Alarm Codes & Data 4.0 Useful Verbs & Nouns

0.0 Fast Start:

If you want to do a real fast startup without doing 0.1 to 1.4 then you should execute the following steps:

• Switch the DAP to "ATTITUDE HOLD MODE ON" (AGC Crew Inputs)
• Wait until "DRIVE CDU Z to X" goes on (AGC Outputs)
• Type into the DSKY: V37E 00E to send the AGC into the idle loop
• DSKY: V77E (Normal DAP Mode) or V76E (Minimum Impulse Mode)
• DSKY: V37E 00E to be sure that the AGC is in the idle mode

Now the vessel can be controlled by the RHC (Rotational Hand Controller) which can be found within the AGC Crew Inputs window.

0.1 AGC/LGC Initialization:

After a fresh AGC start there is a need to do a reset by typing V36E. To go into the idle loop it is necessary to change the program by V37E 00E. Probably that has to be repeated a couple of times until "PROG" shows 00.

1.0 IMU Introduction:

The IMU is constructed of a navigational platform gimbaled by a three axis system. The following mapping is valid after setting the IMU to zero degrees:

X-Gimbal-Axis = Outer Gimbal = X-LM-Axis = YAW Y-Gimbal-Axis = Inner Gimbal = Y-LM-Axis = PITCH Z-Gimbal-Axis = Middle Gimbal = Z-LM-Axis = Roll (Gimbal Lock Warning +/-70 Degrees)

1.1 IMU Start:

• AGC Crew Inputs: Set "ISS TURN ON REQUESTED" to ON
• Wait for about 90 sec until the DSKY "NO ATT" signal goes off

1.2 IMU Pre-flight Checkout:

Pre-flight check-out of the FDAI display interface -> DSKY: V43E All values should be set to +00000.

1.3 IMU Coarse Align:

• Type the following sequence into the DSKY: V41N20E V = Verb; N = Noun; E = Enter
• Now the AGC asks for the angles in the format 000.00 Deg The sequence is X, Y, Z. Don't forget the "+" or "-" sign!
• The AGC drives the IMU to the absolute position given
• Use the "FDAI/IMU" window to control the angle changes

1.4 IMU Fine Align:

After IMU Coarse Align the "NO ATT" light indicates that the platform is not completely aligned. To finalize the alignment the following procedure is needed:

• DSKY: V42E
• Give the relative angles in format 00.000 Deg (e.g. three times +00000)

1.5 Zero IMU:

Here are three possible scenarios to reset the IMU to zero degrees: 1.) AGC Crew Inputs => Activate: "IMU CAGE COMMAND TO DRIVE IMU GIMBAL ANGLES TO 0" 2.) DSKY: V40N20E (AGC sends ZERO CAGE COMMAND) 3.) DSKY: V36E (AGC RESET which automatically resets the IMU)

1.6 Monitor Gimbal Angles:

DSKY: V16N20E

1.7 Monitor PIPA Counter Values:

DSKY: V16N21E

2.0 DAP (Digital Autopilot) Data Initialization:

The DAP needs some initialization values to work correctly (e.g. LM Weight etc.).

• Start Spezial Software Routine R03 => DSKY: V48E
• The Register R1 (F06 46) shows the following value 21122 = ABCDE

Spacecraft Configuration: A = 1 Ascent Stage Only A = 2 Ascent and Descent Stage A = 3 Ascent and Descent Stages docked with CSM

RCS Configuration: B = 0 2 Jet Translation RCS System A B = 1 2 Jet Translation RCS System B B = 2 4 Jet Translation RCS System A B = 3 4 Jet Translation RCS System B

ACA Scaling: C = 0 Fine Scaling ACA (4 Deg/Sec) C = 1 Normal Scaling ACA (20 Deg/Sec)

Deadband Configuration: D = 0 ATT Deadband 0.3 Degrees D = 1 ATT Deadband 1.0 Degrees D = 2 ATT Deadband 5.0 Degrees

KALCMANU RATE: E = 0 0.2 Deg/Sec E = 1 0.5 Deg/Sec E = 2 2 Deg/Sec E = 3 10 Deg/Sec

• To change the value type V21E
• Press "PRO" on the DSKY to start the entry of (F06 47) LM & CSM Weight
• Use V21E or V22E to change the individual values
• V24E allows to change both values sequencially (don't forget the leading + sign)
• Press "PRO" to proceed
• F06 48 allows the entry of the Engine Gimbal Angles.

2.1 DAP Activation and Modes:

DAP Activation:

• AGC Crew Inputs => "ATTITUDE HOLD MODE ON" or "AUTO STABILIZATION OF ATTITUDE ON"

DAP Modes:

• DSKY: V76E Minimun Impulse Command Mode (each RHC deflection fires the thrusters for 14ms)
• DSKY: V77E Rate Command and Attitude Hold Mode

2.2 DAP - V49 Crew Defined Maneuver:

0.) Crew Inputs -> Dap Switch to "AUTO STABILIZATION OF ATTITUDE ON" 1.) V37E 00E 2.) V62E (Display Angular Difference to N22 on Error Needles) 3.) V49E 4.) F 06 22 New ICDU Angles (e.g. V24E to load the Sequence ICDUX, ICDUY and ICDUZ) 5.) PRO 6.) F 50 18 New FDAI Angles in the Sequence Roll, Pitch and Yaw 7.) PRO 8.) The DAP steers the LM to the new orientation

2.3 DAP - FDAI Error Needle Modes:

1.) DSKY: V61E -> DISPLAY DAP FOLLOWING ATTITUDE ERRORS This is the standard mode. The needles show how far the DAP is away from the wished axes positions.

2.) DSKY: V62E -> DISPLAY TOTAL ATTITUDE ERRORS WITH RESPECT TO NOUN 22 Here the needles display the absolute difference between the entry shown by V16N22E and V16N20E. Normally used for automatic positioning (please see V49 Crew Defined Maneuver).

3.) DSKY: V60E -> DISPLAY VEHICLE ATTITUDE RATES ON FDAI ERROR NEEDLES. These outputs should provide the same information as the FDAI rate indicators do. The Roll, Yaw and Pitch rate shown by the FDAI bases on a separate Rate Gyro Assembly fixed mounted to the LM body, whereas the Information on the needles shown by V60E is derived from the AGC measurement of the angular changes. This is also a backup mode in case of a Rate Gyro Assembly fault.

3.0 Display Alarm Codes and Data:

• Alarm Codes => DSKY: V05N09E
• Alarm Data => DSKY: V05N08E

4.0 Useful Verbs & Nouns:

DSKY: Function:

V35E Lamp Test V36E AGC Reset V34E Terminate an ongoing function like IMU Angle Monitoring (V16N20E) V16N36E Monitor the AGC time (R1=Hours; R2=Minutes; R3=100ths of a Second) V37E Changes the AGC Program (e.g. V37E00E = Idling Program)