This learning guide is designed to assist pilots in taking the PLATO presimulator training course on the advanced guidance and control system mode select panel. The learning guide is divided into five sections. The first section, the introduction, presents the course goals, prerequisites, definition of PLATO activities, and a suggested approach to completing the course. The remaining four sections present the purpose, learning activities and summary of each lesson of the AGCS PLATO course, which consists of (1) AGCS introduction; (2) lower order modes; (3) higher order modes; and (4) an arrival route exercise

Anderson, M. A.

Callahan, R.

English

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https://ntrs.nasa.gov/search.jsp?R=19810021560 2020-03-21T12:36:49+00:00Z
NASA Coafts" RCpOft 165751
I
(NASA-C8-165751) LEARNr*G GUIDE FOR THE
TERAINAL CONFIGURED TnICLE ADVANCED
GUIDANCE AND CONTROL STSTAB MODE SELECT
PANEL (Coatrol Data Corp., 8aaptoa, Ya.)
20 p bC 102/8F A01
	 CSCL 01C 63/03
561-30098
Unclas
27264
LEARNING GUIDE FOR THE TERMINAL CONFIGURED
VEHICLE ADVANCED GUIDANCE AND CONTROL
SYSTEM MDDE SELECT PANEL
Mark A. Anderson and Ron Callahan
CONTROL DATA CORPORATION V' 	 J
Hampton, Virginia 23666-'
eE ^^
Contract NASI-15673
July 1981
loan
Natiaonal Aenoneu0cs and 	 L Ilk.
 ,'
Space Administration
Langley Rom oh 0 -in
Henow ,Viryinie 23665
or
.k
TABLE OF CONTENTS
r
	 PAGE NUMBER
INTRODUCTION
	
1
LESSON 1
AGCS: An Introduction	 4
LESSON 2
AGCS Lower Order Modes	 6
LESSON 3
AGCS Higher Order Modes	 11
LESSON 4
AGCS Arrival Route Exercise
	 15
i
J
INTRODUCTION
Advanced Guidance
	
The Advanced Guidance and Control System
and Control System
	
(AGCS) of the Langley Research Center's
(AGCS)	 Terminal Configured Vehicle (TCV) Aft
Flight Deck (AFD) simulator interfaces
=	 with the AFD pilot via the AFD Control
panels which include those for the
navigational c%wputer, EADI, EHSI, and
the automatic flight system (ref. 1).
The control panel for the automatic
flight control system is termed the "AGCS
Mode Select Panel" (MSP) and is used to
select and engage the following modes of
coupled operations:
• Control Wheel Steering Modes
• Select/Hold Modes
• Higher Order Modes
Goals of the Course
	 The AGCS Course is designed to familiarize
pilots with the operation of the ARCS
MSP prior to their use of a real-time
simulator. The primary goal of the course
iF to impart a working knowledge of the
AGCS MSP and its modes so as to reduce
the total simulator time needed by
pilots for TCV training (ref. 2).
Prerequisite	 Prior to taking this course a pilot should
be familiar with the TCV/B737 and the
general functions of the AFD.
-1-
KEY FUNCTION
NEXT Progresses you forward
through the lesson.
BACK Returns you to the pre-
vious page.
SHIFT-BACK Returns you to the pre-
vious major section.
SHIFT-DATA Replots the AGCS ESP display
if it should be interrupted
by an error on the telebhone
line.
Other functions will be available at
different times in the lessons. A
description of these key conventions can
be seen by pressing NEXT at the title
display of each PLATO lesson.
These exercises are designed to let you
evaluate yo-ar ability to apply the know-
ledge leari.ed from a particular activity.
They will consist of multiple choice and
matching questions.
PLATO
	
PLATO (ref. 3) assisted learning actiVi-
Assisted Learning	 ties provide the primary source of
instruction. These PLATO lessons teach
the information to be learned in the
context of realistic problems. You will
be presented with major concepts and
have an opportunity to apply the infor-
mation by answering questions.
As you progress through each PLATO learning
activity, you will find the following
key functions helpful:
c
-2-
r.PLATO
Practical Exercise This exercise provides practice in using
the AGCS MSP. You will be presented
with practical problems which may require
changes in altitude, calibrated air-
speed, flight path angle, and track
angle through use of the functions of
the AGCS MSP.
.
Your skill in using the AGCS MSP will be
measured according to the number of errors
yc.s ,ake. if you make too many errors;
you will not be awarded mastery of the
lesson.
A Suggested
	
You shou:_d first familiarize yourself with
Approach to	 the contents of the course by quickly
Completing the	 scanning the material of this learning
Course	 guide. When you are ready, sign on to
a PLATO terminal.
The lessons may be taken in any order.
However, unless you are sure that you
need knowledge of the AGCS MSP in an
order different from that specified, it
is recommender: that all lessons and
learning activities be completed in the
order given.
As you take each PLATO lesson, you may
find it helpful to take notes directly
in the learning guide to add detail
to the sumaries.
-3-
SWI
LESSON i
AGCS: AN INTRODUCTION
Introduction The purpose of this lesson is to acquaint
you'with the Advanced Guidance and
Control System (AGCS) Mode Select
Panel (MSP). This lesson covers the
definition of the nine functional
modes of the MSP, the switches and their
states (off, preselect, armed, and
engaged), and the location of
switches, knobs, and digital readouts.
See figure 1.
This lesson consists of a PLATO
learning activity and an exercise to
test your comprehension of the material
covered in the learning activity. You
can expect to spend about ten minutes
in this lesson.
x
FIGURE 1
-4-
Summary	 AGCS Advanced Guidance and Control System
I. Purpose
Allows the pilot to select one of
three major modes of automatic
flight control assistance
II. Major Modes of Assistance
A. Control Wheel Steering
B. Select/hold
C. Automatic path (includes
autoland)
III. Each major mode is associated with
a distinct subset of switches and
lights on the AGCS Mode Select
Panel (MSP)
-5-
LESSON 2
&!
AGCS LOWER ORDER HODES
I ^
(CONTROL WHEEL STEERING AND SELECT/HOLD MODES)
Introduction	 The purpose of this lesson is to
acquaint you with the AGCS features
known as lower order modes. The
function and use of the switches, knobs,
and digital readouts associated with the
follooing modes are covered:
- Control Wheel Steering (CWS)
- Calibrated Airspeed Engaged
(CAS ENG)
- Altitude Engaged (ALT ENG)
- Flight Path Angle Select (FPA SEL)
- Track Angle Select (TKA SEL)
See figure 2.
Completion of this lesson will require
about twenty-five to thirty minutes.
Ct.S ENG
	 CWS
	 ALT I ENG	 FPAI SFL	 TKO SEL
F_ 2V 27
O
113H
O ^ 00 	 ' O P
FIGURE 2
I
I
-6-
AGCS Lower Order Modes
Summary	 I. Control Wheel Steering (CWS) Diodes
A. Purpose
1. Provides stabilized aircraft response
to pilot force inputs via the panel-
mounted controllers (PMC)
2. Holds certain variables constant sub-
sequent to the release of pilot
force inputs
a. pitch and roll attitudes
b. track and flight path angles
B. AGCS CWS Modes
1. ATT (attitude) CWS
2. VEL (velocity) CWS
C. ATT CWS (fly attitude of airplane)
1. Selected by the pilot via the ATT
CWS switch on the AGCS MSP
2. Roil out-of-detent force ± 3 lbs
3. Roll attitude at force release becomes
autopilot hold reference
4. Pitch attitud- at force release becomes
autopilot hold reference
D. VEL CWS (fly velocity vector of airplane,
i.e., inertial flight path angle)
1. Selected by the pilot via the VEL CWS
switch on the AGCS MSP
2. Out-of-detent forces same as ATT CWS
3. Bank angle, track angle, and flight
path angle are autopilot hold
references
-7-
II. Select/Nuld Modes
A. CAS ENG (Calibrated AirSpeed Engage)
1. Purpose - allow,3 the pilot to control
auto-throttle system independenr of
the navigation computer flight plan
2.	 three available states:
a. Off - digital readout follows air-
craft's current calibrated airspeed
b. Preselect (blue) - calibrated air-
speed was selected via CAS ENG knob
while mode was not engaged
C. Engaged (green) - CAS ENG is active
and maintaining the calibrated air-
speed shown in associated digital
readout
3. Components
a. CAS ENG Switch
b. CAS ENG Knob
C. CAS ENG Digital Readout
B. ALT ENG !Altitude Ern age)
1. Purpose - allows the pilot to capture and
hold a particular altitude auto.iatically
2. Four available states:
s. Off - digital readout fellows air-
plane's ctirrent altitude to nearest
100 feet.
b. Preselect (blue) - An altitude has
been ent.tred via t-he ALT ENG knob
but the airplane is not under control
of ALT ENG
-8-
C. Armed (amber) - A change in
altittide has been preselected
that falls outside the range of
certain logic conditions permit-
ting automatic altitude intercept
d. F.npaged (green) - ALT ENG is active
and maintaining the altitude shown
in the associated digital readout
3. Components
.3. ALT FNG Switch
b. ALT ENG Knob
C. ALT ENG Digital Readout
4. Depenuencies - AUTO engaged
C. FPS', SEL (Flight Path Angle Select)
1. Purpose - allows the pilot to capture
and hold a particular flight path angle
and make changes to the flight path
angle
2. Three available states
a. Off - FPA SEL is not active and
digital readout tracks the air-
plane's current flight path angle
b. Preselect (blue) - a flight path
angle is entered via the FPA SEL
knob dut the airplane is not under
control of FPA SEL
C. Engaged (green) - FPA SEL is active
and the pilot can change the
flight path angle, and thereby
steer the airplane, using the FPA
SEL Knob
-9-
iA
3 . Components
a. FPA SEL Switch
b. FPA SF.L Knob
C.	 FPA SEE. Di ^, i to l Readout
4. Dependencies
a. AUTO eT,gaged
b. AUTO ENG not engaged
'J. TKA SEL (Track Angle Select)
1. Purpose - allows the pilot to capture
and hold a particular magnetic track
angle
2. Three available states
a. Off - TKA SFI. is not active and
the associated digital readout
tracks the airplane's current
magnetic trick angle
b. Preselect (blue) - a track angle
is entered via the TKA SEI. Knou
but the airplane is not under 'TKA
SEL control
C. Engaged (green) - TKA SEL iF active
and the pilot can change the air-
plane's magnetic track angle, and
thereby steer the airplane, using
the TKA S F:1. Knob
3. Components
a. TKA SEL ;witch
b. "TKA SF.L Knob
C. TKA SEL Di d 'al Readout
4. Dependencies: AUTO engaged
I
-10-
1.F.SSON 3
ACGS HIGHER ORDER MODES
•	 (AUI'OPATH MOD'FS )
I
k
Ni
Introduction	 The purpose of this lesson is to acqu.,iint
you with the AGCS feattir p s known as the
higher ordev modes or aut,)path/autoland
modes. The function and use of the
following switches are covered•
AUTO
LAND
HOR PATH
VERT PATH
T1 ME PAA H
See figure 3.
Completion of this lesson w-111 require
about fifteen minutes.
HOR
	 VERT
	 TIME
AUTO	 LAID	 PATH	 PATH	 PATH
L_ 2 .^	 1 1
O ^1G
0
^ V1F1 T
TVSf
0 111
	
0 il ^2 7 01
i O	
TKA
HO:1  9c.	 `_ I	 s
^'^l	 list
F IGURE 3
y 
r ^
	
-11-
Summary
	
AGCS Higher Order Modes
I. AUTO
A. Enables all hither orde.: path and
select/hold modes EXCEPT autothrottle
``
	 B. Provides access to all of the modes to
F	 the right of the auto switch on AGCS
MSP
C. Automatically selects
a. FPS SEL
b. TKA SFL
I
`	 D. Deselecting AUTO reverts system to VEL CWS
II. LAND
A. Prerequisites
AUTO
B. Purpose
1. To configure the system for fully
automatic ILS/MLS approach and
landing
2. Includes
a. capture
b. tracking
C.
	 flare
d. decrab
C. rollout to a full stop
C. Switch light
1. Amber from time of select until 10
seconds after glidescope capture
-12-
2. Green following 10—second delay after
capture
111. HOR PATH
A. Prerequisites
1. AUTO
2. Active 2-D flight plan in navigation
computer
B. Purpose
1. Couples the flight-control system to
the horizontal guidance path
2. Enables the airplane to follow the
horizontal €:iidance path auto-
matically
C. Deselects 1KA SEL mode when HOR PATH selected
D. Switch light is green when engaged
IV. VERT PATH
A. Prerequisites
1. AUTO
2. HOR PATH (armed or engaged)
3. Active 3-D f'.ight plan in navigation
computer
B. Purpose
1. Couples the flight control system to
the vertical guidance path
2. Enables airplane to follow the vertical
guidance profile as defined in the
active flight plan
M
-13-
C. Operation
1. Vertical path error less that 150 feet
and HOR PATH engaged, VERT PATH engages
(green) and FPA SEL disengages
2. Vertical path error greater thar 150
feet, VERT PATH goes into armed state
(amber), and the pilot selects 	
r
appropriate vertical-path intercept
angle via FPA SEL Knob
V. TIME PATH
A. Prerequisites
1. AUTO
2. HOR PATH
3. VERT PATH (armed or engaged)
4. Active 4-D flight plan in navigation
computer
B. Purpose
1. Couples the autothrottle system to the
4-D guidance profile
2. Enables the airplane to auto-
matically capture and track the
speed profile as defined in the active
flight plan
C. Operation
1. If VERT PATH engaged, TIME PATH engages
(green)
2. If VERT PATH armed but not engaged,
TIME PATH will be armed (amber)
a
F
-14-
7
Introduction	 The purpose of this lesson is to
evaluate your ability to use the AGCS
MSP in flying the TCV airplane. It
is a practical exercise requiring the
pilot to configure the AGCS MSP for
several different arrival routes.
Changes to the aircraft'-, calibrated
airspeed, altitude, flight path angle,
and track angle will be required with
appropriate changes in the mode states.
See figure 4 for a sample question
from this exercise.
'this exercise will take about fifteen to
twenty minutes.
4
-15-
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-16-
REFERENCES
1. National Aeronautics and Space Administration, Langley
Research Center: Terminal Configured Vehicle Program,
Test Facilities Guide. NASA SP-435, 1980.
2. Houck, Jacob A,; Markos, Athena T.: Development of a
Multi-Media Crew-Training; Program for the Terminal
Configured Vehicle Mission Simulator. Presented at the
1980 Summer Computer Simulation Conference (Seattle,
Washington), August, 1960.
3. Paulson, Roger F.: Control Data PLATO System Overview.
Control Data Corporation Publication 97406700, 1976.
-17-


Learning guide for the terminal configured vehicle advanced guidance and control system mode select panel

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