Source Code
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These source-code files are part of a reconstructed copy of Comanche 45/2 (AKA Manche45 revision 2),
the final, flown mission release of the Apollo 10 Command Module (CM) Apollo Guidance
Computer (AGC) software. Comanche 45/2 was preceded by Comanche 44 and Comanche 45. The
reconstruction is believed to be exactly accurate, but in the absence of an actual Apollo-era
listing of Comanche 45/2, some explanation of the reconstruction process is needed
to insure confidence in that accuracy.
The starting point was the source code of Comanche 45 (itself previously accurately
reconstructed). Comanche 45 source code was then modified by incorporating changes
known from contemporary documentation to have been made between revisions 45 and 45/2.
The now-reconstructed Comanche 45/2 source code was
verified by assembling it and checking that the assembled code had
the expected known-correct memory-bank checksums.
Note that page numbers in the reconstructed code tend to match those in the Comanche 55, the
most-similar revision of Comanche for which we have access to an actual non-reconstructed hardcopy;
the source code would likely have different page numbers in a contemporary
Comanche 45 listing.
Annotations that were not present in the contemporary source code have been added to the reconstructed
code to justify each change relative to Comanche 44. Here's a guide to the Apollo documentation referenced
in those annotations:
Comments expected to have been present in the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
Project's GitHub repository.
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044605,000002: ## Copyright: Public domain.
044606,000003: ## Filename: AUTOMATIC_MANEUVERS.agc
044607,000004: ## Purpose: A section of Manche45 revision 2.
044608,000005: ## It is part of the reconstructed source code for the
044609,000006: ## final, flown release of the flight software for the Command
044610,000007: ## Module's (CM) Apollo Guidance Computer (AGC) for Apollo 10.
044611,000008: ## The code has been recreated from a copy of Comanche 055. It
044612,000009: ## has been adapted such that the resulting bugger words
044613,000010: ## exactly match those specified for Manche 45/2 in NASA drawing
044614,000011: ## 2021153D, which gives relatively high confidence that the
044615,000012: ## reconstruction is correct.
044616,000013: ## Assembler: yaYUL
044617,000014: ## Contact: Ron Burkey <info@sandroid.org>.
044618,000015: ## Website: www.ibiblio.org/apollo/index.html
044619,000016: ## Mod history: 2020-12-24 MAS Created from Comanche 45.
044620,000017:
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Page 1025
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044622,000019: 21,3250 BANK 21
044623,000020: 21,2000 SETLOC DAPS3
044624,000021: 21,2000 BANK
044625,000022:
044626,000023: 21,3250 COUNT 21/DAPAM
044627,000024:
044628,000025: 21,3250 E6,1510 EBANK= KMPAC
044629,000026: 21,3250 00006 AHFNOROT EXTEND
044630,000027: 21,3251 00031 READ CHAN31
044631,000028: 21,3252 75002 MASK BIT14
044632,000029: 21,3253 00006 EXTEND
044633,000030: 21,3254 63272 BZMF FREECONT
044634,000031: 21,3255 31501 CA RCSFLAGS # SEE IF RATE FILTER HAS BEEN INITIALIZED
044635,000032: 21,3256 75002 MASK BIT14
044636,000033: 21,3257 10000 CCS A # IF SO, PROCEED WITH ATTITUDE CONTROL
044637,000034: 21,3260 12534 TCF REINIT # IF NOT, RECYCLE TO INITIALIZE FILTER
044638,000035: # AUTOMATIC CONTROL YET
044639,000036: 21,3261 00006 EXTEND
044640,000037: 21,3262 00031 READ CHAN31
044641,000038: 21,3263 75003 MASK BIT13
044642,000039: 21,3264 00006 EXTEND
044643,000040: 21,3265 63372 BZMF HOLDFUNC
044644,000041:
044645,000042: 21,3266 31332 AUTOCONT CA HOLDFLAG # IF HOLDFLAG IS +, GO TO GRABANG.
044646,000043: 21,3267 00006 EXTEND # OTHERWISE, GO TO ATTHOLD.
044647,000044: 21,3270 63322 BZMF ATTHOLD
044648,000045: 21,3271 13376 TCF GRABANG
044649,000046:
044650,000047: # MINIMUM IMPULSE CONTROL
044651,000048:
044652,000049: 21,3272 35017 FREECONT CAF ONE
044653,000050: 21,3273 55332 TS HOLDFLAG # RESET HOLDFLAG
044654,000051: # INHIBIT AUTOMATIC STEERING
044655,000052: 21,3274 00006 EXTEND
044656,000053: 21,3275 00032 READ CHAN32
044657,000054: 21,3276 54001 TS L
044658,000055: 21,3277 40000 COM
044659,000056: 21,3300 73036 MASK MANROT
044660,000057: 21,3301 71633 MASK CHANTEMP
044661,000058: 21,3302 23633 LXCH CHANTEMP
044662,000059: 21,3303 03130 TC STICKCHK
044663,000060: 21,3304 51656 INDEX RMANNDX
044664,000061: 21,3305 33316 CA MINTAU # MINTAU +0
044665,000062: 21,3306 55561 TS TAU # +1 +14MS MINIMUM IMPULSE
044666,000063: 21,3307 51657 INDEX PMANNDX # +2 -14MS TIME
044667,000064: 21,3310 33316 CA MINTAU # +3 +0
044668,000065: 21,3311 55562 TS TAU1
044669,000066: 21,3312 51660 INDEX YMANNDX
044670,000067: 21,3313 33316 CA MINTAU
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Page 1026
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044672,000069: 21,3314 55563 TS TAU2
044673,000070: 21,3315 13067 TCF T6PROGM
044674,000071:
044675,000072: 21,3316 00000 MINTAU DEC 0 B-14
044676,000073: 21,3317 00027 DEC 23 B-14 # = 14MS
044677,000074: 21,3320 77750 DEC -23 B-14 # = -14MS
044678,000075: 21,3321 00000 DEC 0 B-14
044679,000076:
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Page 1027
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044681,000078: # CALCULATION OF ATTITUDE ERRORS-
044682,000079: # - * - - -
044683,000080: # AK = AMGB (CDUX - THETADX) + BIAS
044684,000081:
044685,000082: # IE *AK * * 1 SIN(PSI) 0 ** CDUX - THETADX * *BIAS *
044686,000083: # * * * ** * * *
044687,000084: # *AK1* = * 0 COS(PSI)COS(PHI) SIN(PHI)** CDUY - THETADY * + *BIAS1*
044688,000085: # * * * ** * * *
044689,000086: # *AK2* * 0 -COS(PSI)SIN(PHI) COS(PHI)** CDUZ - THETADZ * *BIAS2*
044690,000087:
044691,000088: # THE BIASES ARE ADDED ONLY WHILE PERFORMING AUTOMATIC MANEUVERS (ESP KALCMANU) TO PROVIDE ADDITIONAL LEAD
044692,000089: # AND PREVENT OVERSHOOT WHEN STARTING AN AUTOMATIC MANEUVER. NORMALLY THE REQUIRED LEAD IS ONLY 1-2 DEGREES.
044693,000090: # BUT DURING HIGH RATE MANEUVERS IT CAN BE AS MUCH AS 7 DEGREES. THE BIASES ARE COMPUTED BY KALCMANU AND REMAIN
044694,000091: # FIXED UNTIL THE MANEUVER IS COMPLETED AT WHICH TIME THEY ARE RESET TO ZERO.
044695,000092:
044696,000093: 21,3322 30032 ATTHOLD CA CDUX
044697,000094: 21,3323 00006 EXTEND
044698,000095: 21,3324 21572 MSU THETADX
044699,000096: 21,3325 55567 TS ERRORX
044700,000097: 21,3326 30033 CA CDUY
044701,000098: 21,3327 00006 EXTEND
044702,000099: 21,3330 21573 MSU THETADY
044703,000100: 21,3331 55502 TS T5TEMP
044704,000101: 21,3332 00006 EXTEND
044705,000102: 21,3333 71640 MP AMGB1
044706,000103: 21,3334 27567 ADS ERRORX
044707,000104: 21,3335 31502 CA T5TEMP
044708,000105: 21,3336 00006 EXTEND
044709,000106: 21,3337 71641 MP AMGB4
044710,000107: 21,3340 55570 TS ERRORY
044711,000108: 21,3341 31502 CA T5TEMP
044712,000109: 21,3342 00006 EXTEND
044713,000110: 21,3343 71643 MP AMGB7
044714,000111: 21,3344 55571 TS ERRORZ
044715,000112: 21,3345 30034 CA CDUZ
044716,000113: 21,3346 00006 EXTEND
044717,000114: 21,3347 21574 MSU THETADZ
044718,000115: 21,3350 55502 TS T5TEMP
044719,000116: 21,3351 00006 EXTEND
044720,000117: 21,3352 71642 MP AMGB5
044721,000118: 21,3353 27570 ADS ERRORY
044722,000119: 21,3354 31502 CA T5TEMP
044723,000120: 21,3355 00006 EXTEND
044724,000121: 21,3356 71644 MP AMGB8
044725,000122: 21,3357 27571 ADS ERRORZ
044726,000123: 21,3360 41332 CS HOLDFLAG
044727,000124: 21,3361 00006 EXTEND
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Page 1028
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044729,000126: 21,3362 63441 BZMF JETS
044730,000127: 21,3363 31564 CA BIAS # AD BIASES ONLY IF PERFORMING AUTOMATIC
044731,000128: 21,3364 27567 ADS ERRORX
044732,000129: 21,3365 31565 CA BIAS1
044733,000130: 21,3366 27570 ADS ERRORY
044734,000131: 21,3367 31566 CA BIAS2
044735,000132: 21,3370 27571 ADS ERRORZ
044736,000133: 21,3371 13441 TCF JETS
044737,000134:
044738,000135: 21,3372 11332 HOLDFUNC CCS HOLDFLAG
044739,000136: 21,3373 13376 TCF +3
044740,000137: 21,3374 13322 TCF ATTHOLD
044741,000138: 21,3375 13376 TCF +1
044742,000139: 21,3376 35021 GRABANG CAF ZERO # ZERO WBODYS AND BIASES
044743,000140: 21,3377 55525 TS WBODY
044744,000141: 21,3400 55526 TS WBODY +1
044745,000142: 21,3401 55527 TS WBODY1
044746,000143: 21,3402 55530 TS WBODY1 +1
044747,000144: 21,3403 55531 TS WBODY2
044748,000145: 21,3404 55532 TS WBODY2 +1
044749,000146: 21,3405 55564 TS BIAS
044750,000147: 21,3406 55565 TS BIAS1
044751,000148: 21,3407 55566 TS BIAS2
044752,000149:
044753,000150: 21,3410 31501 CA RCSFLAGS
044754,000151: 21,3411 73037 MASK OCT16000
044755,000152: 21,3412 00006 EXTEND # IS RATE DAMPING COMPLETED
044756,000153: 21,3413 13421 BZF ENDDAMP # IF SO, GO TO ENDDAMP
044757,000154: 21,3414 35021 CAF ZERO # OTHERWISE, ZERO ERRORS
044758,000155: 21,3415 55567 TS ERRORX
044759,000156: 21,3416 55570 TS ERRORY
044760,000157: 21,3417 55571 TS ERRORZ
044761,000158: 21,3420 13441 TCF JETS
044762,000159:
044763,000160: 21,3421 55332 ENDDAMP TS HOLDFLAG # SET HOLDFLAG +0
044764,000161: 21,3422 00006 EXTEND
044765,000162: 21,3423 30033 DCA CDUX # PICK UP CDU ANGLES FOR ATTITUDE HOLD
044766,000163: 21,3424 53573 DXCH THETADX # REFERENCES
044767,000164: 21,3425 30034 CA CDUZ
044768,000165: 21,3426 55574 TS THETADZ
044769,000166: 21,3427 13322 TCF ATTHOLD
044770,000167:
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Page 1029
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044772,000169: # JET SWITCHING LOGIC AND CALCULATION OF REQUIRED ROTATION COMMANDS
044773,000170:
044774,000171: # DETERMINE THE LOCATION OF THE RATE ERROR AND THE ATTITUDE ERROR RELATIVE TO THE SWITCHING LOGIC IN THE PHASE
044775,000172: # PLANE.
044776,000173:
044777,000174: # COMPUTE THE CHANGE IN RATE CORRESPONDING TO THE ATTITUDE ERROR NECESSARY TO DRIVE THE THE S/C INTO THE
044778,000175: # APPROPRIATE DEADZONE.
044779,000176:
044780,000177: # .
044781,000178: # R22 RATE . ERROR
044782,000179: # WL+H .
044783,000180: # ********************************* . ***** SWITCH LINES ENCLOSING DEADZONES
044784,000181: # R23 WL * .
044785,000182: # --------------------------------- * . ----- DESIRED RATE LINES
044786,000183: # R23 WL-H - *.
044787,000184: # ****************** - . R20, R21, R22, ETC REGIONS IN PHASE
044788,000185: # * - .* R18 R20 R21 PLANE FOF COMPUTING DESIRED RESPONSE
044789,000186: # * . *
044790,000187: # *- . *
044791,000188: # R22 R24*- R23 . *
044792,000189: # *- . *
044793,000190: # * . *
044794,000191: # + -ADB . * AF ATTITUDE
044795,000192: # .........................+--+---------------+--+........................
044796,000193: # AF * . +ADB + ERROR
044797,000194: # * . *
044798,000195: # * . -*
044799,000196: # * . -*
044800,000197: # * . -*
044801,000198: # * . *
044802,000199: # *. - *
044803,000200: # . - *****************
044804,000201: # .* -
044805,000202: # . * --------------------------------
044806,000203: # . *
044807,000204: # . ********************************
044808,000205: # .
044809,000206: # FIG. 1 PHASE PLANE SWITCHING LOGIC
044810,000207:
044811,000208: # CONSTANTS FOR JET SWITCHING LOGIC
044812,000209:
044813,000210: 21,3430 00114 WLH/SLOP DEC .00463 # = WL+H/SLOPE = .83333 DEG $180
044814,000211: 21,3431 00055 WL-H/SLP DEC .00277 # = WL-H/SLOPE = .5 DEG $180
044815,000212: 21,3432 00022 06426 WLH 2DEC .0011111111 # = WL+H = 0.5 DEG/SEC $450
044816,000213:
044817,000214: 21,3434 00012 35415 WLMH 2DEC .0006666666 # = WL-H = 0.3 DEG/SEC $450
044818,000215:
044819,000216: 21,3436 00016 22021 WL 2DEC .0008888888 # = WL = 0.4 DEG/SEC $450
044820,000217:
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Page 1030
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044822,000219: 21,3440 12173 SLOPE2 DEC .32 # = 0.8 DEG/SEC/DEG $450/180
044823,000220: 21,3441 31655 JETS CA ADB
044824,000221: 21,3442 65015 AD FOUR # AF = FLAT REGION = .044 DEG
044825,000222: 21,3443 55502 TS T5TEMP # ADB+AF
044826,000223: 21,3444 35016 CAF TWO
044827,000224: 21,3445 55506 JLOOP TS SPNDX
044828,000225: 21,3446 60000 DOUBLE
044829,000226: 21,3447 55507 TS DPNDX
044830,000227: 21,3450 00006 EXTEND
044831,000228: 21,3451 50000 INDEX A
044832,000229: 21,3452 31534 DCA ADOT
044833,000230: 21,3453 53516 DXCH EDOT
044834,000231: 21,3454 31332 CA HOLDFLAG # HOLDFLAG = +0 MEANS THAT DAP IS IN
044835,000232: 21,3455 00006 EXTEND # ATTITUDE HOLD AND RATE DAMPING IS OVER.
044836,000233: 21,3456 13463 BZF INHOLD # IF THIS IS THE CASE, BYPASS ADDITION
044837,000234: # OF WBODY AND GO TO INHOLD
044838,000235: 21,3457 00006 EXTEND
044839,000236: 21,3460 51507 INDEX DPNDX
044840,000237: 21,3461 41526 DCS WBODY
044841,000238: 21,3462 21516 DAS EDOT # = ADOT-WBODY
044842,000239: 21,3463 51506 INHOLD INDEX SPNDX
044843,000240: 21,3464 31567 CA ERRORX
044844,000241: 21,3465 55517 TS AERR # AERR = BIAS + AK
044845,000242:
044846,000243: 21,3466 11515 CCS EDOT
044847,000244: 21,3467 13477 TCF POSVEL
044848,000245: 21,3470 13472 TCF SIGNCK1
044849,000246: 21,3471 13507 TCF NEGVEL
044850,000247: 21,3472 11516 SIGNCK1 CCS EDOT +1
044851,000248: 21,3473 13477 TCF POSVEL
044852,000249: 21,3474 13477 TCF POSVEL
044853,000250: 21,3475 13507 TCF NEGVEL
044854,000251: 21,3476 13507 TCF NEGVEL
044855,000252: 21,3477 00006 POSVEL EXTEND
044856,000253: 21,3500 31516 DCA EDOT
044857,000254: 21,3501 53521 DXCH EDOTVEL
044858,000255: 21,3502 31502 CA T5TEMP
044859,000256: 21,3503 55523 TS ADBVEL # +(ADB+AF)
044860,000257: 21,3504 31517 CA AERR
044861,000258: 21,3505 55522 TS AERRVEL
044862,000259: 21,3506 03516 TC J6.
044863,000260: 21,3507 00006 NEGVEL EXTEND
044864,000261: 21,3510 41516 DCS EDOT
044865,000262: 21,3511 53521 DXCH EDOTVEL
044866,000263: 21,3512 41502 CS T5TEMP
044867,000264: 21,3513 55523 TS ADBVEL # -(ADB+AF)
044868,000265: 21,3514 41517 CS AERR
044869,000266: 21,3515 55522 TS AERRVEL
044870,000267:
044871,000268: 21,3516 00006 J6. EXTEND
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Page 1031
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044873,000270: 21,3517 61655 SU ADB
044874,000271: 21,3520 63430 AD WLH/SLOP
044875,000272: 21,3521 00006 EXTEND
044876,000273: 21,3522 63551 BZMF J8
044877,000274:
044878,000275: 21,3523 41502 CS T5TEMP # (ADB+AF)
044879,000276: 21,3524 61522 AD AERRVEL
044880,000277: 21,3525 00006 EXTEND
044881,000278: 21,3526 63530 BZMF +2
044882,000279: 21,3527 13542 TCF J7
044883,000280: 21,3530 00006 EXTEND
044884,000281: 21,3531 41521 DCS EDOTVEL
044885,000282: 21,3532 00006 EXTEND
044886,000283: 21,3533 11654 DV SLOPE
044887,000284: 21,3534 00006 EXTEND
044888,000285: 21,3535 61522 SU AERRVEL
044889,000286: 21,3536 61655 AD ADB
044890,000287: 21,3537 00006 EXTEND
044891,000288: 21,3540 63630 BZMF J18
044892,000289: 21,3541 13704 TCF J23
044893,000290:
044894,000291: 21,3542 43431 J7 CS WL-H/SLP
044895,000292: 21,3543 00006 EXTEND
044896,000293: 21,3544 61502 SU T5TEMP # (ADB+AF)
044897,000294: 21,3545 61522 AD AERRVEL
044898,000295: 21,3546 00006 EXTEND
044899,000296: 21,3547 63634 BZMF J20
044900,000297: 21,3550 13645 TCF J21
044901,000298:
044902,000299: 21,3551 00006 J8 EXTEND
044903,000300: 21,3552 43433 DCS WLH
044904,000301: 21,3553 53514 DXCH WTEMP
044905,000302: 21,3554 00006 EXTEND
044906,000303: 21,3555 31521 DCA EDOTVEL
044907,000304: 21,3556 21514 DAS WTEMP
044908,000305: 21,3557 11513 CCS WTEMP
044909,000306: 21,3560 13673 TCF J22
044910,000307: 21,3561 13563 TCF SIGNCK2
044911,000308: 21,3562 13567 TCF NJ22
044912,000309: 21,3563 11514 SIGNCK2 CCS WTEMP +1
044913,000310: 21,3564 13673 TCF J22
044914,000311: 21,3565 13673 TCF J22
044915,000312: 21,3566 13567 TCF NJ22
044916,000313:
044917,000314: 21,3567 00006 NJ22 EXTEND
044918,000315: 21,3570 31521 DCA EDOTVEL
044919,000316: 21,3571 00006 EXTEND
044920,000317: 21,3572 11654 DV SLOPE
044921,000318: 21,3573 61502 AD T5TEMP # (ADB+AF)
044922,000319: 21,3574 61522 AD AERRVEL
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Page 1032
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044924,000321: 21,3575 10000 CCS A
044925,000322: 21,3576 13704 TCF J23
044926,000323: 21,3577 13704 TCF J23
044927,000324: 21,3600 13602 TCF +2
044928,000325: 21,3601 13704 TCF J23
044929,000326:
044930,000327: 21,3602 00006 EXTEND
044931,000328: 21,3603 43435 DCS WLMH # WL - H
044932,000329: 21,3604 53514 DXCH WTEMP
044933,000330: 21,3605 00006 EXTEND
044934,000331: 21,3606 31521 DCA EDOTVEL
044935,000332: 21,3607 21514 DAS WTEMP
044936,000333: 21,3610 11513 CCS WTEMP
044937,000334: 21,3611 13704 TCF J23
044938,000335: 21,3612 13614 TCF SIGNCK3
044939,000336: 21,3613 13620 TCF NJ23
044940,000337: 21,3614 11514 SIGNCK3 CCS WTEMP +1
044941,000338: 21,3615 13704 TCF J23
044942,000339: 21,3616 13704 TCF J23
044943,000340: 21,3617 13620 TCF NJ23
044944,000341:
044945,000342: 21,3620 31522 NJ23 CA AERRVEL
044946,000343: 21,3621 61502 AD T5TEMP # (ADB+AF)
044947,000344: 21,3622 63431 AD WL-H/SLP
044948,000345: 21,3623 10000 CCS A
044949,000346: 21,3624 13716 TCF J24
044950,000347: 21,3625 13716 TCF J24
044951,000348: 21,3626 13673 TCF J22
044952,000349: 21,3627 13673 TCF J22
044953,000350:
044954,000351: 21,3630 00006 J18 EXTEND
044955,000352: 21,3631 41516 DCS EDOT
044956,000353: 21,3632 53511 DXCH KMPAC
044957,000354: 21,3633 13727 TCF JTIME
044958,000355:
044959,000356: 21,3634 41517 J20 CS AERR
044960,000357: 21,3635 61523 AD ADBVEL
044961,000358: 21,3636 00006 EXTEND
044962,000359: 21,3637 73440 MP SLOPE2 # (HYSTERESIS SLOPE)
044963,000360: 21,3640 53511 DXCH KMPAC
044964,000361: 21,3641 00006 EXTEND
044965,000362: 21,3642 41516 DCS EDOT
044966,000363: 21,3643 21511 DAS KMPAC
044967,000364: 21,3644 13727 TCF JTIME
044968,000365:
044969,000366: 21,3645 11515 J21 CCS EDOT
044970,000367: 21,3646 13664 TCF JP
044971,000368: 21,3647 13651 TCF SIGNCK4
044972,000369: 21,3650 13655 TCF JN
044973,000370: 21,3651 11516 SIGNCK4 CCS EDOT +1
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Page 1033
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044975,000372: 21,3652 13664 TCF JP
044976,000373: 21,3653 13664 TCF JP
044977,000374: 21,3654 13655 TCF JN
044978,000375: 21,3655 00006 JN EXTEND
044979,000376: 21,3656 41516 DCS EDOT
044980,000377: 21,3657 53511 DXCH KMPAC
044981,000378: 21,3660 00006 EXTEND
044982,000379: 21,3661 33437 DCA WL
044983,000380: 21,3662 21511 DAS KMPAC
044984,000381: 21,3663 13727 TCF JTIME
044985,000382:
044986,000383: 21,3664 00006 JP EXTEND
044987,000384: 21,3665 41516 DCS EDOT
044988,000385: 21,3666 53511 DXCH KMPAC
044989,000386: 21,3667 00006 EXTEND
044990,000387: 21,3670 43437 DCS WL
044991,000388: 21,3671 21511 DAS KMPAC
044992,000389: 21,3672 13727 TCF JTIME
044993,000390:
044994,000391: 21,3673 11515 J22 CCS EDOT
044995,000392: 21,3674 13655 TCF JN
044996,000393: 21,3675 13677 TCF SIGNCK5
044997,000394: 21,3676 13664 TCF JP
044998,000395: 21,3677 11516 SIGNCK5 CCS EDOT +1
044999,000396: 21,3700 13655 TCF JN
045000,000397: 21,3701 13655 TCF JN
045001,000398: 21,3702 13664 TCF JP
045002,000399: 21,3703 13664 TCF JP
045003,000400:
045004,000401: 21,3704 51506 J23 INDEX SPNDX
045005,000402: 21,3705 45003 CS BIT13 # RESET RATE DAMPING FLAG
045006,000403: 21,3706 71501 MASK RCSFLAGS # BIT13 FOR ROLL (SPNDX = 0)
045007,000404: 21,3707 55501 TS RCSFLAGS # BIT12 FOR PITCH (SPNDX = 1)
045008,000405: # BIT11 FOR YAW (SPNDX = 2)
045009,000406:
045010,000407: 21,3710 51506 INDEX SPNDX
045011,000408: 21,3711 33033 CAF OCT01400 # IS THERE TO BE A FORCED FIRING ON THIS
045012,000409: 21,3712 71501 MASK RCSFLAGS # AXIS
045013,000410: 21,3713 00006 EXTEND
045014,000411: 21,3714 13750 BZF DOJET +2 # NO, GO TO DOJET +2 AND DO NOTHING
045015,000412:
045016,000413: 21,3715 13630 TCF J18 # YES, GO TO J18 AND FORCE A FIRING
045017,000414:
045018,000415: 21,3716 41517 J24 CS AERR
045019,000416: 21,3717 00006 EXTEND
045020,000417: 21,3720 61523 SU ADBVEL
045021,000418: 21,3721 00006 EXTEND
045022,000419: 21,3722 73440 MP SLOPE2 # (HYSTERESIS SLOPE)
045023,000420: 21,3723 53511 DXCH KMPAC
045024,000421: 21,3724 00006 EXTEND
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Page 1034
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045026,000423: 21,3725 41516 DCS EDOT
045027,000424: 21,3726 21511 DAS KMPAC
045028,000425:
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|
Page 1035
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045030,000427: # COMPUTE THE JET ON TIME NECESSARY TO ACCOMPLISH THE DESIRED CHANGE IN RATE, IE
045031,000428:
045032,000429: # T = J/M(DELTA W)
045033,000430: # J
045034,000431:
045035,000432: # DELTA W = DESIRED CHANGE IN S/C ANGULAR RATE AS DETERMINED BY THE
045036,000433: # SWITCHING LOGIC, AT THIS POINT STORED IN KMPAC.
045037,000434:
045038,000435: # J/M = S/C INERTIA TO TORQUE 9ATIO SCALED BY
045039,000436: # (57.3/450)(B24/1600)(1/.8)
045040,000437: # FOR 1 JET OPERATION (M = 700 FT-LB).
045041,000438: # IE J/M = J(SLUG-FTFT) X 0.00000085601606
045042,000439:
045043,000440: # THE CORRESPONDING COMPUTER VARIABLES ESTABLISHED BY
045044,000441: # KEYBOARD ENTRY ARE
045045,000442: # J/M (ROLL)
045046,000443: # J/M1 (PITCH)
045047,000444: # J/M2 (YAW)
045048,000445:
045049,000446: # T = JET ON-TIME SCALED 16384/1600 SEC
045050,000447: # J
045051,000448:
045052,000449: # THE COMPUTER VARIABLES ARE
045053,000450: # TAU (ROLL)
045054,000451: # TAU1 (PITCH)
045055,000452: # TAU2 (YAW)
045056,000453:
045057,000454: 21,3727 51506 JTIME INDEX SPNDX # PICK UP S/C INERTIA/TORQUE RATIO
045058,000455: 21,3730 31623 CA J/M # SCALED (57.3/450)(B24/1600)
045059,000456: 21,3731 02042 TC SMALLMP # FOR 1-JET OPERATION
045060,000457: 21,3732 35005 CA BIT11
045061,000458: 21,3733 02042 TC SMALLMP
045062,000459: 21,3734 11510 CCS KMPAC
045063,000460: 21,3735 13741 TCF +4
045064,000461: 21,3736 13745 TCF TAUNORM
045065,000462: 21,3737 13743 TCF +4
045066,000463: 21,3740 13745 TCF TAUNORM
045067,000464: 21,3741 34777 CA POSMAX
045068,000465: 21,3742 13746 TCF DOJET
045069,000466: 21,3743 35001 CA NEGMAX
045070,000467: 21,3744 13746 TCF DOJET
045071,000468:
045072,000469: 21,3745 31511 TAUNORM CA KMPAC +1
045073,000470: 21,3746 51506 DOJET INDEX SPNDX
045074,000471: 21,3747 55561 TS TAU
045075,000472: 21,3750 11506 CCS SPNDX
045076,000473: 21,3751 13445 TCF JLOOP
045077,000474: 21,3752 13757 TCF T6PROG
045078,000475:
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Page 1036
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045080,000477: 21,3753 35021 ZEROCMDS CAF ZERO
045081,000478: 21,3754 55561 TS TAU
045082,000479: 21,3755 55562 TS TAU1
045083,000480: 21,3756 55563 TS TAU2
045084,000481: 21,3757 00006 T6PROG EXTEND # WHEN THE ROTATION COMMANDS (TAUS)
045085,000482: 21,3760 33764 DCA JETADDR # HAVE BEEN DETERMINED
045086,000483: 21,3761 53313 DXCH T5LOC # RESET T5LOC FOR PHASE3
045087,000484: 21,3762 15333 TCF RESUME
045088,000485:
045089,000486: 21,3763 E6,1510 EBANK= KMPAC
045090,000487: 21,3763 02552 36066 JETADDR 2CADR JETSLECT
045091,000488:
End of include-file AUTOMATIC_MANEUVERS.agc. Parent file is MAIN.agc