TM 1-1510-218-10
3B-25. AUTOMATIC FLIGHT CONTROL SYSTEM.
a. Description.
The Automatic Flight Control
System is a completely integrated autopilot/flight
director/air data system that has a full complement of
horizontal and vertical flight guidance modes. These
include all radio guidance modes and air data oriented
vertical modes.
When engaged and coupled to the Flight
Director (FD) commands, the system will control the
aircraft using the same commands displayed on the
attitude director indicator. When engaged and
uncoupled from the flight director commands, manual
pitch and roll commands may be inserted using the
Touch Control Steering (
TCS
) or the pitch wheel and
turn knob.
When the autopilot is coupled, the flight director
instruments act as a means to monitor the
performance of the autopilot. When the autopilot is not
engaged, the same modes of operation are available
for flight director only. The pilot maneuvers the aircraft
to satisfy the flight director commands, as does the
autopilot when it is engaged.
b. Air Data Computer.
A digital air data
computer, located in the forward avionics
compartment, provides the altitude information for the
pilot's encoding altimeter, altitude alerter, flight data
recorder, and transponder. The computer also
provides altitude and airspeed hold function data to the
flight control computers. The air data computer
receives 28 Vdc power through, and is protected by, a
2-ampere circuit breaker, placarded
AIR DATA –
ENCDR
, located in the
AVIONICS
section of the
overhead circuit breaker panel, Figure 2-16, Sheet 3.
All air data computer functions are automatic in nature
and require no flight crew action.
c. Autopilot Flight Director Transfer Switch.
An alternate action autopilot and flight director transfer
switch, placarded
AP FD 1
and
AP FD 2
, is located on
the pilot's instrument panel directly below the glare
shield. Refer to Figure 2-17, Sheet 2. This switch is
used to select which autopilot flight director computer
controls the aircraft flight servos. If
AP FD 2
is
selected, the annunciator, placarded
AP FLT DIR NO.
2
, located on the copilot's instrument panel directly
below the glare shield, will illuminate to alert the pilot
that the No. 2 autopilot flight director computer is
controlling the aircraft.
NOTE
The autopilot will disengage when
transferring between the pilot and copilot
flight directors.
d. Flight Director/Mode Selector.
The flight
director/mode selector located on the pedestal, Figure
2-9, Sheet 1, provides for selection of all modes,
except go-around that is initiated by remote switches
located on the left power lever and on the copilot's
control wheel, for the flight director. The top row of split
light annunciated push buttons contains the lateral
modes and the bottom row contains the vertical
modes. The mode buttons will illuminate when
manually selected or automatically selected through
other modes. Refer to Figure 3B-16.
The split light push button annunciators
illuminate amber for armed conditions and green for
captured. When more than one lateral or vertical
mode is selected, the flight director system
automatically arms and captures the submode. Mode
annunciation is also presented on remote annunciator
blocks, located above both (pilot and copilot) Attitude
Director Indicators (ADI's), and on the pilot's ADI.
e. Autopilot Modes of Operation.
(1) Heading Mode Selector (
HDG
).
The
heading select mode is selected by pressing the
HDG
button on the mode selector. In the HDG mode, the
flight director computer provides inputs to the
command cue to command a turn to the heading
indicated by the heading bug on the HSI. The heading
select signal is gain programmed as a function of
airspeed. When
HDG
is selected, it overrides the
NAV, BC APR and VOR APR modes. In the event of
a loss of valid signal from the VG or compass, the
command cue on the ADI is biased out of view.
(2) Navigation Mode Selector (
NAV
).
The
navigation mode represents a family of modes for
various navigation systems including VOR, localizer,
TACAN and VLF.
3B-26
Summary of Contents for C-12C
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Page 21: ...TM 1 1510 218 10 Figure 2 2 Typical General Interior Arrangement 2 5 ...
Page 22: ...TM 1 1510 218 10 Figure 2 3 Principal Dimensions C Sheet 1 of 2 2 6 ...
Page 23: ...TM 1 1510 218 10 2 7 Figure 2 3 Principal Dimensions D T Sheet 2 of 2 ...
Page 37: ...TM 1 1510 218 10 2 21 Figure 2 9 Control Pedestal D2 Sheet 1 of 3 ...
Page 38: ...TM 1 1510 218 10 Figure 2 9 Control Pedestal T1 Sheet 2 of 3 2 22 ...
Page 39: ...TM 1 1510 218 10 2 23 Figure 2 9 Control Pedestal T2 Sheet 3 of 3 ...
Page 43: ...TM 1 1510 218 10 Figure 2 12 Cabin Door and Cabin Emergency Hatch D T 2 27 ...
Page 51: ...TM 1 1510 218 10 Figure 2 15 Overhead Control Panel C D T1 Sheet 1 of 2 2 35 ...
Page 52: ...TM 1 1510 218 10 Figure 2 15 Overhead Control Panel T2 Sheet 2 of 2 2 36 ...
Page 54: ...TM 1 1510 218 10 Figure 2 16 Overhead Circuit Breaker Panel C Sheet 1 of 4 2 38 ...
Page 55: ...TM 1 1510 218 10 Figure 2 16 Overhead Circuit Breaker Panel D1 Sheet 2 of 4 2 39 ...
Page 56: ...TM 1 1510 218 10 2 40 Figure 2 16 Overhead Circuit Breaker Panel D2 Sheet 3 of 4 ...
Page 57: ...TM 1 1510 218 10 Figure 2 16 Overhead Circuit Breaker Panel T1 Sheet 4 of 4 2 41 ...
Page 59: ...TM 1 1510 218 10 2 43 Figure 2 17 Instrument Panel C D1 Sheet 1 of 4 ...
Page 60: ...TM 1 1510 218 10 2 44 Figure 2 17 Instrument Panel D2 Sheet 2 of 4 ...
Page 61: ...TM 1 1510 218 10 2 45 Figure 2 17 Instrument Panel T1 Sheet 3 of 4 ...
Page 62: ...TM 1 1510 218 10 Figure 2 17 Instrument Panel T2 Sheet 4 of 4 2 46 ...
Page 69: ...TM 1 1510 218 10 2 53 Figure 2 18 Fuel System ...
Page 75: ...TM 1 1510 218 10 2 59 Figure 2 20 Gravity Feed Fuel Flow ...
Page 76: ...TM 1 1510 218 10 2 60 Figure 2 21 Crossfeed Fuel Flow ...
Page 97: ...TM 1 1510 218 10 Figure 2 24 Oxygen System Servicing Pressure Chart 2 81 ...
Page 102: ...TM 1 1510 218 10 Figure 2 25 Oxygen System C Sheet 1 of 2 2 86 ...
Page 103: ...TM 1 1510 218 10 Figure 2 25 Oxygen System D T Sheet 2 of 2 2 87 ...
Page 106: ...TM 1 1510 218 10 2 90 Figure 2 26 Environmental System ...
Page 110: ...TM 1 1510 218 10 Figure 2 27 DC Electrical System Schematic C D1 2 94 ...
Page 114: ...TM 1 1510 218 10 Figure 2 28 DC Electrical System Schematic D2 T1 Sheet 1 of 2 2 98 ...
Page 115: ...TM 1 1510 218 10 Figure 2 28 DC Electrical System Schematic T2 Sheet 2 of 2 2 99 ...
Page 126: ...TM 1 1510 218 10 Figure 2 29 AC Electrical System Schematic Diagram D2 Sheet 2 of 3 2 110 ...
Page 127: ...TM 1 1510 218 10 Figure 2 29 AC Electrical System Schematic Diagram T Sheet 3 of 3 2 111 ...
Page 133: ...TM 1 1510 218 10 Figure 2 31 Pitot and Static System 2 117 ...
Page 153: ...TM 1 1510 218 10 Figure 2 34 Mooring 2 137 2 138 blank ...
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Page 376: ...TM 1 1510 218 10 Figure 3C 7 ADI Pitch Scale 3C 22 ...
Page 387: ...TM 1 1510 218 10 Figure 3C 12 Map ARC Format Figure 3C 13 Map Symbols 3C 33 ...
Page 449: ...TM 1 1510 218 10 3C 95 Figure 3C 39 Lateral Course Edit ...
Page 465: ...TM 1 1510 218 10 Figure 3C 56 Entry and Display of VNAV Parameters 3C 111 ...
Page 473: ...TM 1 1510 218 10 Figure 3C 64 Alternate Flight Plan Schedule 3C 119 ...
Page 484: ...TM 1 1510 218 10 Figure 3C 75 Parallel Entry Into a Holding Pattern 3C 130 ...
Page 506: ...TM 1 1510 218 10 Figure 3C 99 MFP Geometry Definitions 3C 152 ...
Page 515: ...TM 1 1520 218 10 10 Figure 3C 108 FROM TO Options for the Data Page Examples Only 3C 161 ...
Page 517: ...TM 1 1520 218 10 3C 163 Figure 3C 110 Data For Option 1 Figure 3C 111 Data For Option 2 ...
Page 518: ...TM 1 1520 218 10 3C 164 Figure 3C 112 Data For Option 3 Figure 3C 113 Data For Option 4 ...
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Page 578: ...TM 1 1510 218 10 Figure 5 1 Instrument Markings and Operating Limits C D Sheet 1 of 7 5 2 ...
Page 579: ...TM 1 1510 218 10 5 3 Figure 5 1 Instrument Markings and Operating Limits C D Sheet 2 of 7 ...
Page 582: ...TM 1 1510 218 10 Figure 5 1 Instrument Markings and Operating Limits Sheet 5 of 7 5 6 ...
Page 583: ...TM 1 1510 218 10 Figure 5 1 Instrument Markings and Operating Limits Sheet 6 of 7 5 7 ...
Page 599: ...TM 1 1520 218 10 Figure 6 2 Fuel Moment Chart 6 5 ...
Page 601: ...TM 1 1520 218 10 Figure 6 3 Baggage Moment 6 7 ...
Page 602: ...TM 1 1520 218 10 Figure 6 4 Personnel Moments 6 8 ...
Page 603: ...TM 1 1520 218 10 Figure 6 5 Cargo Moment C D1 T1 1 of 2 6 9 ...
Page 604: ...TM 1 1520 218 10 Figure 6 5 Cargo Moment T2 2 of 2 6 10 ...
Page 606: ...TM 1 1520 218 10 Figure 6 6 Cargo Loading C D T1 1 of 2 6 12 ...
Page 607: ...TM 1 1520 218 10 6 13 Figure 6 6 Cargo Loading T2 2 of 2 ...
Page 608: ...TM 1 1520 218 10 6 14 Figure 6 7 Center of Gravity Limitations ...
Page 609: ...TM 1 1520 218 10 6 15 Figure 6 8 Center of Gravity Limitations Above 12 500 ...
Page 610: ...TM 1 1520 218 10 6 16 Figure 6 9 Cargo Restraint and Tiedown Method ...
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Page 621: ...TM 1 1510 218 10 Figure 7 5 Takeoff Performance Planning Tabulations Flaps 0 7 9 ...
Page 622: ...TM 1 1510 218 10 Figure 7 6 Takeoff Performance Planning Tabulations Flaps 0 7 10 ...
Page 623: ...TM 1 1510 218 10 Figure 7 7 Takeoff Performance Planning Tabulations Flaps 40 7 11 ...
Page 624: ...TM 1 1510 218 10 Figure 7 8 Takeoff Performance Planning Tabulations Flaps 40 7 12 ...
Page 625: ...TM 1 1510 218 10 Figure 7 9 Stall Speeds Power Idle 7 13 ...
Page 626: ...TM 1 1510 218 10 Figure 7 10 Temperature Conversion Correction for Compressibility 7 14 ...
Page 627: ...TM 1 1510 218 10 Figure 7 11 ISA Conversion 7 15 ...
Page 628: ...TM 1 1510 218 10 Figure 7 12 Altimeter Position Error Correction Normal System 7 16 ...
Page 629: ...TM 1 1510 218 10 Figure 7 13 Airspeed Calibration Normal System Ground Roll 7 17 ...
Page 634: ...TM 1 1510 218 10 Figure 7 18 Takeoff Distance Flaps 0 7 22 ...
Page 635: ...TM 1 1510 218 10 Figure 7 19 Accelerate Stop Distance Flaps 0 7 23 ...
Page 636: ...TM 1 1510 218 10 Figure 7 20 Accelerate Go Distance Flaps 0 7 24 ...
Page 637: ...TM 1 1510 218 10 Figure 7 21 Takeoff Distance Flaps 40 7 25 ...
Page 638: ...TM 1 1510 218 10 Figure 7 22 Accelerate Stop Distance Flaps 40 7 26 ...
Page 639: ...TM 1 1510 218 10 Figure 7 23 Accelerate Go Distance Flaps 40 7 27 ...
Page 640: ...TM 1 1510 218 10 Figure 7 24 Line Speed Check During Takeoff Ground Run 7 28 ...
Page 641: ...TM 1 1510 218 10 Figure 7 25 Climb Two Engines Flaps 0 7 29 ...
Page 642: ...TM 1 1510 218 10 Figure 7 26 Climb Two Engines Flaps 40 7 30 ...
Page 643: ...TM 1 1510 218 10 Figure 7 27 Climb One Engine Inoperative 7 31 ...
Page 644: ...TM 1 1510 218 10 Figure 7 28 Time Fuel Distance to Cruise Climb 7 32 ...
Page 645: ...TM 1 1510 218 10 Figure 7 29 Service Ceiling One Engine Inoperative 7 33 ...
Page 646: ...TM 1 1510 218 10 Figure 7 30 Landing Distance Without Propeller Reversing Flaps 100 7 34 ...
Page 647: ...TM 1 1510 218 10 Figure 7 31 Landing Distance Without Propeller Reversing Flaps 40 7 35 ...
Page 648: ...TM 1 1510 218 10 Figure 7 32 Landing Distance Without Propeller Reversing Flaps 0 7 36 ...
Page 649: ...TM 1 1510 218 10 Figure 7 33 Landing Distance With Propeller Reversing Flaps 100 7 37 ...
Page 650: ...TM 1 1510 218 10 Figure 7 34 Landing Distance With Propeller Reversing Flaps 40 7 38 ...
Page 651: ...TM 1 1510 218 10 Figure 7 35 Landing Distance With Propeller Reversing Flaps 0 7 39 ...
Page 652: ...TM 1 1510 218 10 Figure 7 36 Stopping Distance Factors 7 40 ...
Page 653: ...TM 1 1510 218 10 Figure 7 37 Cabin Altitude for Various Airplane Altitudes 7 41 ...
Page 662: ...TM 1 1510 218 10 Figure 7 46 Recommended Cruise Speeds 1700 RPM 7 50 ...
Page 663: ...TM 1 1510 218 10 Figure 7 47 Recommended Cruise Power 1700 RPM 7 51 ...
Page 664: ...TM 1 1510 218 10 Figure 7 48 Fuel Flow at Recommended Cruise Power 1700 RPM 7 52 ...
Page 673: ...TM 1 1510 218 10 Figure 7 57 Recommended Cruise Speeds 1800 RPM 7 61 ...
Page 674: ...TM 1 1510 218 10 Figure 7 58 Recommended Cruise Power 1800 RPM 7 62 ...
Page 675: ...TM 1 1510 218 10 Figure 7 59 Fuel Flow at Recommended Cruise Power 1800 RPM 7 63 ...
Page 684: ...TM 1 1510 218 10 Figure 7 68 Maximum Cruise Speeds 1900 RPM 7 72 ...
Page 685: ...TM 1 1510 218 10 Figure 7 69 Maximum Cruise Power 1900 PRM 7 73 ...
Page 686: ...TM 1 1510 218 10 Figure 7 70 Fuel Flow at Maximum Cruise Power 1900 RPM 7 74 ...
Page 687: ...TM 1 1510 218 10 Figure 7 71 Maximum Range Power 1700 RPM ISA 30 C 7 75 ...
Page 688: ...TM 1 1510 218 10 Figure 7 72 Maximum Range Power 1700 RPM ISA 20 C 7 76 ...
Page 689: ...TM 1 1510 218 10 Figure 7 73 Maximum Range Power 1700 RPM ISA 10 C 7 77 ...
Page 690: ...TM 1 1510 218 10 Figure 7 74 Maximum Range Power 1700 RPM ISA 7 78 ...
Page 691: ...TM 1 1510 218 10 Figure 7 75 Maximum Range Power 1700 RPM ISA 10 C 7 79 ...
Page 692: ...TM 1 1510 218 10 Figure 7 76 Maximum Range Power 1700 RPM ISA 20 C 7 80 ...
Page 693: ...TM 1 1510 218 10 Figure 7 77 Maximum Range Power 1700 RPM ISA 30 C 7 81 ...
Page 694: ...TM 1 1510 218 10 Figure 7 78 Maximum Range Power 1700 RPM ISA 37 C 7 82 ...
Page 711: ...TM 1 1510 218 10 7A 9 Figure 7A 5 Airspeed Calibration Normal System Takeoff Ground Roll ...
Page 712: ...TM 1 1510 218 10 7A 10 Figure 7A 6 Airspeed Calibration Normal System ...
Page 713: ...TM 1 1510 218 10 7A 11 Figure 7A 7 Altimeter Correction Normal System ...
Page 714: ...TM 1 1510 218 10 7A 12 Figure 7A 8 Airspeed Calibration Alternate System ...
Page 715: ...TM 1 1510 218 10 7A 13 Figure 7A 9 Altimeter Correction Alternate System ...
Page 716: ...TM 1 1510 218 10 7A 14 Figure 7A 10 Indicated Outside Air Temperature Correction ISA ...
Page 717: ...TM 1 1510 218 10 7A 15 Figure 7A 11 ISA Conversion ...
Page 718: ...TM 1 1510 218 10 7A 16 Figure 7A 12 Fahrenheit to Celsius Temperature Conversion ...
Page 719: ...TM 1 1510 218 10 7A 17 Figure 7A 13 Stall Speeds Power Idle ...
Page 720: ...TM 1 1510 218 10 7A 18 Figure 7A 14 Cabin Altitude for Various Airplane Altitudes ...
Page 724: ...TM 1 1510 218 10 7A 22 Figure 7A 18 Minimum Takeoff Power With Ice Vanes Extended 65 Knots ...
Page 725: ...TM 1 1510 218 10 7A 23 Figure 7A 19 Takeoff Flight Path ...
Page 726: ...TM 1 1510 218 10 7A 24 Figure 7A 20 Wind Component ...
Page 727: ...TM 1 1510 218 10 7A 25 Figure 7A 21 Take Off Distance Flaps UP ...
Page 728: ...TM 1 1510 218 10 7A 26 Figure 7A 22 Accelerate Stop Flaps UP ...
Page 729: ...TM 1 1510 218 10 7A 27 Figure 7A 23 Accelerate Go Flaps UP ...
Page 730: ...TM 1 1510 218 10 7A 28 Figure 7A 24 Net Gradient of Climb Flaps UP ...
Page 731: ...TM 1 1510 218 10 7A 29 Figure 7A 25 Take off Distance Flaps APPROACH ...
Page 732: ...TM 1 1510 218 10 7A 30 Figure 7A 26 Accelerate Stop Flaps APPROACH ...
Page 733: ...TM 1 1510 218 10 7A 31 Figure 7A 27 Accelerate Go Flaps APPROACH ...
Page 734: ...TM 1 1510 218 10 7A 32 Figure 7A 28 Net Gradient of Climb Flaps APPROACH ...
Page 735: ...TM 1 1510 218 10 7A 33 Figure 7A 29 Climb Two Engines Flaps UP ...
Page 736: ...TM 1 1510 218 10 7A 34 Figure 7A 30 Climb Two Engines Flaps APPROACH ...
Page 737: ...TM 1 1510 218 10 7A 35 Figure 7A 31 Climb One Engine Inoperative ...
Page 738: ...TM 1 1510 218 10 7A 36 Figure 7A 32 Service Ceiling One Engine Inoperative ...
Page 739: ...TM 1 1510 218 10 7A 37 Figure 7A 33 Time Fuel and Distance to Climb ...
Page 748: ...TM 1 1510 218 10 7A 46 Figure 7A 42 Normal Cruise Speeds 1700 RPM ...
Page 749: ...TM 1 1510 218 10 7A 47 Figure 7A 43 Normal Cruise Power 1700 RPM ...
Page 750: ...TM 1 1510 218 10 7A 48 Figure 7A 44 Fuel Flow At Normal Cruise Power 1700 RPM ...
Page 751: ...TM 1 1510 218 10 7A 49 Figure 7A 45 Range Profile Normal Cruise Power 1700 RPM ...
Page 760: ...TM 1 1510 218 10 Figure 7A 54 Maximum Cruise Speeds 1700 RPM 7A 58 ...
Page 761: ...TM 1 1510 218 10 Figure 7A 55 Maximum Cruise Power 1700 RPM 7A 59 ...
Page 762: ...TM 1 1510 218 10 Figure 7A 56 Fuel Flow At Maximum Cruise Power 1700 RPM 7A 60 ...
Page 763: ...TM 1 1510 218 10 Figure 7A 57 Range Profile Maximum Cruise Power 1700 RPM 7A 61 ...
Page 772: ...TM 1 1510 218 10 Figure 7A 66 Normal Cruise Speeds 1800 RPM 7A 70 ...
Page 773: ...TM 1 1510 218 10 Figure 7A 67 Normal Cruise Power 1800 RPM 7A 71 ...
Page 774: ...TM 1 1510 218 10 Figure 7A 68 Fuel Flow at Normal Cruise Power 1800 RPM 7A 72 ...
Page 775: ...TM 1 1510 218 10 Figure 7A 69 Range Profile Normal Cruise Power 1800 RPM 7A 73 ...
Page 784: ...TM 1 1510 218 10 Figure 7A 78 Maximum Cruise Speeds 1800 RPM 7A 82 ...
Page 785: ...TM 1 1510 218 10 Figure 7A 79 Maximum Cruise Power 1800 RPM 7A 83 ...
Page 786: ...TM 1 1510 218 10 7A 84 Figure 7A 80 Fuel Flow At Maximum Cruise Power 1800 RPM ...
Page 787: ...TM 1 1510 218 10 Figure 7A 81 Range Profile Maximum Cruise Power 1800 RPM 7A 85 ...
Page 804: ...TM 1 1510 218 10 Figure 7A 90 Range Profile Maximum Range Power 1700 RPM 7A 102 ...
Page 805: ...TM 1 1510 218 10 Figure 7A 91 Range Profile Full Main and Auxiliary Tanks 7A 103 ...
Page 806: ...TM 1 1510 218 10 Figure 7A 92 Endurance Profile Full Main and Auxiliary Tanks 7A 104 ...
Page 807: ...TM 1 1510 218 10 Figure 7A 93 Range Profile Full Main Tanks 7A 105 ...
Page 808: ...TM 1 1510 218 10 Figure 7A 94 Endurance Profile Full Main Tanks 7A 106 ...
Page 817: ...TM 1 1510 218 10 Figure 7A 103 Pressurization Controller Setting for Landing 7A 115 ...
Page 818: ...TM 1 1510 218 10 Figure 7A 104 Holding Time 7A 116 ...
Page 819: ...TM 1 1510 218 10 Figure 7A 105 Time Fuel and Distance to Descend 7A 117 ...
Page 820: ...TM 1 1510 218 10 Figure 7A 106 Climb Balked Landing 7A 118 ...
Page 822: ...TM 1 1510 218 10 7A 120 Figure 7A 108 Landing Distance Without Propeller Reversing Flaps UP ...
Page 823: ...TM 1 1510 218 10 7A 121 Figure 7A 109 Landing Distance With Propeller Reversing Flaps DOWN ...
Page 824: ...TM 1 1510 218 10 7A 122 Figure 7A 110 Landing Distance With Propeller Reversing Flaps UP ...
Page 825: ...TM 1 1510 218 10 7A 123 7A 124 blank Figure 7A 111 Stopping Distance Factors ...
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Page 853: ...TM 1 1510 218 10 8 27 Figure 8 2 Stall Speed ...
Page 883: ...TM 1 1510 218 10 8A 23 Figure 8A 3 Figure Stall Speeds Power Idle ...
Page 892: ...TM 1 1510 218 10 9 2 Figure 9 1 Emergency Exits and Equipment ...
Page 896: ...TM 1 1510 218 10 9 6 Figure 9 2 Maximum Glide Distance ...
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Page 948: ... PIN 0 000 ...