1+_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ] V. SHAH            ]    PASS PROGRAM NOTE        ]      108546      ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE:            ]
 ] IBM/282-7218       ]      RELEASE NOTE( )        ]      01/07/93    ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] OI-22 AND SUBS                ]  CREW (X)  GROUND ( )  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW ( )  GNC (X)  VU ( )  SM/PL ( )] G3                              ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA: DISP, ENTRY, GUID                                ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: 4.8, 6.15, 6.16, 6.17, 6.18, 6.40, 4.150       ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ] ENTRY TRAJ ALPHA CMD DISPLAY DIFFERENT FROM FCS ALPHA CMD           ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]IN MM 304 ONLY,                                                      ]
 ]THE TRAJ 1-5 DISPLAY TAPE SCALE OF "ANGLE-OF-ATTACK COMMAND" IS IN   ]
 ]ACTUALITY THE NOMINAL REFERENCE ALPHA SCHEDULE (ACMD1).  ENTRY       ]
 ]GUIDANCE WILL CYCLICALLY FIRST SET THE FCS COMMAND OUTPUT (ALPCMD)   ]
 ]TO THIS REFERENCE.  BUT WHENEVER ALPHA MODULATION, OR PARTICULARLY,  ]
 ]WHENEVER THE CONTINGENCY LOW ENERGY LOGIC IS ACTIVE, THE GUIDANCE    ]
 ]WILL MODIFY THE FCS COMMAND (ALPCMD) AS APPROPRIATE WHILE THE        ]
 ]REFERENCE VALUE (ACMD1) REMAINS UNALTERED.  HENCE, THE DISPLAY       ]
 ](ACMD1) VS. FCS (ALPCMD) GUIDANCE ALPHA OUTPUTS MAY DIFFER BY AS     ]
 ]MUCH AS 9 DEGREES FOR THE LOW ENERGY MODE AND BY UP TO 3 DEGREES     ]
 ]DURING ALPHA MODULATION.  NOTE, ANY ALPHA VS TRAJ 1-5 ALPHA "COMMAND"]
 ](ACMD1) DIFFERENCE GREATER THAN 2 DEGREES WILL ALSO CAUSE THE TAPE   ]
 ]SCALE ALPHA SYMBOL TO FLASH EVEN IF THE ACTUAL FCS/ADI ALPHA ERROR   ]
 ]IS ZERO.                                                             ]
 ]                                                                     ]
 ]THIS BEHAVIOR IS PER REQUIREMENTS.                                   ]
 ]_____________________________________________________________________]
 ]USER RESPONSE:                                                       ]
 ]WHEN THE LOW-ENERGY LOGIC IS ENABLED, THE ANGLE-OF-ATTACK ERROR      ]
 ]COMPUTED BY AEROJET DAP CAN BE MONITORED ON THE ADI PITCH ERROR WHICH]
 ]SHOWS THE DIFFERENCE IN ALPHA AND ALPCMD.                            ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM: PATTI A. THORNTON    DATE 02/23/93]                             ]
 ]    --------------------      ---------]                             ]
 ]FDSD:   W. R. PRUETT      DATE 02/25/93]                             ]
 ]     -------------------      ---------]                             ]
 ]PF MGR:MICHAEL P. DEMASIE DATE 03/04/93]                             ]
 ]       RAYMOND T. SILVESTRI    03/05/93] DARRELL E. STAMPER 03/05/93 ]
 ]         FOR J'ANN SIDERS              ]------------------- -------- ]
 ]       KEITH D. WALYUS         03/05/93] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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