<?xml version="1.0"?>

<!-- CFM56 turbofan engine model
     Version 1.0, 14 Mar 2003, David Culp, davidculp2@comcast.net
     Updated 20 Oct 2003, DPC, new MAXTHRUST item
-->

<FG_SIMTURBINE NAME="CFM56">
  <!--
     MILTHRUST     max static thrust (without afterburner) at S.L. (installed), lbf
     MAXTHRUST     max static thrust with afterburner at S.L. (installed), lbf
     BYPASSRATIO   bypass ratio
     TSFC          thrust-specific fuel consumption (lbm/hr/lbf)
     ATSFC         augmented TSFC (lbm/hr/lbf)
     IDLEN1        idle percent rpm of fan spool
     IDLEN2        idle percent rpm of inner spool
     MAXN1         N1 at 100% throttle
     MAXN2         N2 at 100% throttle
     AUGMENTED     =1 if augmentation installed, else =0
     INJECTED      =1 if water injection installed, else =0  

     TABLE(0)      idle thrust vs. altitude and mach
     TABLE(1)      maximum un-augmented thrust vs. altitude and mach
     TABLE(2)      augmented thrust multiplier vs. altitude and mach
     TABLE(3)      water-injection multiplier vs. altitude and mach
  -->

  MILTHRUST    20000
  MAXTHRUST    20000
  BYPASSRATIO  5.9
  TSFC         0.657
  ATSFC        0.0
  IDLEN1       30.0
  IDLEN2       60.0
  MAXN1        100.0
  MAXN2        100.0
  AUGMENTED    0
  INJECTED     0


  <TABLE NAME="IdleThrust" TYPE="TABLE">
    Idle_power_thrust_factor
    6
    6
    velocities/mach-norm
    position/h-sl-ft
    none
                0   10000   20000   30000   40000  50000
    0.0    0.0483  0.0528  0.0694  0.0899  0.1183  0.1467
    0.2    0.0501  0.0335  0.0544  0.0797  0.1049  0.1341
    0.4    0.0047  0.0020  0.0272  0.0595  0.0891  0.1203
    0.6   -0.0804 -0.0560 -0.0237  0.0276  0.0718  0.1073
    0.8   -0.2129 -0.1498 -0.1025 -0.0195  0.0473  0.0868
    1.0   -0.2839 -0.1104 -0.0469 -0.0270 -0.0158  0.0552
  </TABLE>

  <TABLE NAME="MilThrust" TYPE="TABLE">
    Effects_of_altitude_and_mach_on_thrust
    7
    6
    velocities/mach-norm
    position/h-sl-ft
    none
               0    10000   20000     30000    40000    50000
    0.0   1.0000   0.7216   0.4890   0.3115   0.1932   0.1104
    0.2   1.0000   0.7216   0.4979   0.3186   0.1948   0.1104
    0.4   0.9945   0.7344   0.5213   0.3383   0.2050   0.1230
    0.6   0.9968   0.7759   0.5591   0.3675   0.2240   0.1309
    0.8   0.9771   0.8025   0.6112   0.4196   0.2563   0.1522
    0.9   0.9300   0.7900   0.6000   0.3900   0.2300   0.1300
    1.0   0.5000   0.5000   0.4000   0.2000   0.1500   0.0900
  </TABLE>

</FG_SIMTURBINE>