List of Simulation Variables-continue

EFFJAN(1) effective jet-angle turning for left-top-vane command, degrees

EFFJAN(2) effective jet-angle turning for left-outboard-vane command, degrees

EFFJAN(3) effective jet-angle turning for left-inboard-vane command, degrees

EFFJAN(4) effective jet-angle turning for right-top-vane command, degrees

EFFJAN(5) effective jet-angle turning for right-outboard-vane command, degrees

EFFJAN(6) effective jet-angle turning for right-inboard-vane command, degrees

ENGTD

sample time interval at which discrete engine model is called, (0.0125 seconds)

ENPR(1)

estimated left engine nozzle pressure ratio

ENPR(2)

estimated right engine nozzle pressure ratio

used to prevent divide by zero, (= 10-10)

EPS

ERPM(1)

left engine rpm, rpm

ERPM(2)

right engine rpm, rpm

ERRORS

error signal out of proportional gain in RFCS, used for trim

EVENT

time at which dynamic-check perturbation is applied, sec

FCS

marker for flight control system discrete block

FG(1)

left engine gross thrust without angle-of-attack effects, TV losses, or drags, lbs

FG(2)

right engine gross thrust without angle-of-attack effects, TV losses, or drags, lbs

FGAERO(1) = FG(1). Gross thrust for left engine after T56 bias multiplier losses, lbs

FGAERO(2) = FG(2). Gross thrust for right engine after T56 bias multiplier losses, lbs

FGTOT(1)

left engine gross thrust including angle-of-attack effects, lbs

FGTOT(2)

right engine gross thrust including angle-of-attack effects, lbs

FIRST

logical used for subroutine AOAINS initialization

FIRST2

logical used for subroutine TVANGL initialization

FIRST3

logical used for subroutine SENSOR initialization

FSCG

fuselage station coordinate of the center of gravity, inches

FSRF

fuselage station coordinate of the aerodynamic reference center, (= 458.56 inches)

FTD

event marker for flight test data control input discrete block

FTDAT

array used to hold 1 record of flight data read off a file, (50 elements)

FVR

total generalized force vector for rigid-body dynamics

FVRA

aerodynamic component of FVR

FVRE

thrust-induced component of FVR

FVRGR

gravity-induced component of FVR

FVRI

inertial component of FVR

FVRWG

aerodynamic disturbance (wind and gust) component of FVR

acceleration due to gravity, (31.174 ft/sec2)

GAINSWITCH switch to choose ANSER longitudinal gain set (Default = 0.0)

GAM

longitudinal flight path angle, radians

GAMDG

longitudinal flight path angle, degrees

GAMS

sensor-model wind-axis Euler angle, radians

GAMTR

target longitudinal flight path angle used in trim search, radians

GAMTRDG target longitudinal flight path angle used in trim search, degrees

GAMZR

GAM - GAMTR, driven to zero by trim search, radians

GAMZRDG GAM - GAMTR, driven to zero by trim search, degrees

GDTHR

scaling parameter placed on a random number applied to next trim search solution

candidate to prevent one component of the solution vector from reaching a solution

earlier and remaining fixed. An unchanging element of solution vector will lead to a

singularity in the sensitivity-matrix estimation.

GINV

1/g, used to scale various variables

GLOAD

desired load factor used in trim search when TCASE=3, g's

GROSST(1) left engine gross thrust including angle-of-attack effects, lbs

GROSST(2) right engine gross thrust including angle-of-attack effects, lbs

GRTHEST(1) estimated left engine gross thrust, lbs

GRTHEST(2) estimated right engine gross thrust, lbs

141