<?xml version="1.0"?>
<!--
MILTHRUST   [LBS]
MAXTHRUST   [LBS]
idlen1      [%]
maxn1       [%]
betarangeend[%]
    if ThrottleCmd < betarangeend/100.0 then engine power=idle, propeller pitch
    is controled by ThrottleCmd (between MINPITCH and  REVERSEPITCH).
    if ThrottleCmd > betarangeend/100.0 then engine power increases up to max reverse power
reversemaxpower [%]
    max engine power in reverse mode
maxpower    [HP]
psfc power specific fuel consumption [pph/HP] for N1=100%
n1idle_max_delay [-] time constant for N1 change
maxstartenginetime [sec]
    after this time the automatic starting cycle is interrupted when the engine
    doesn't start (0=automatic starting not present)
startern1   [%]
    when starting starter spin up engine to this spin
ielumaxtorque [lb.ft]
    if torque>ielumaxtorque limiters decrease the throttle
    (ielu = Integrated Electronic Limiter Unit)
itt_delay [-] time constant for ITT change
    (ITT = Inter Turbine Temperature)
-->

<turboprop_engine name="AI24">
  <milthrust unit="LBS">       6500.0   </milthrust> <!-- 5712 -->
  <idlen1>                       90.0   </idlen1>
  <maxn1>                       100.0   </maxn1>
  <maxpower unit="HP">         2550.0   </maxpower>
  <psfc unit="LBS/HR/HP">         0.632 </psfc>
  <n1idle_max_delay>              1     </n1idle_max_delay>
  <maxstartingtime>               0     </maxstartingtime>
  <startern1>                    90     </startern1>
  <ielumaxtorque unit="FT*LB">    0     </ielumaxtorque>
  <itt_delay>                     0.05  </itt_delay>
  <betarangeend>                 64     </betarangeend>
  <reversemaxpower>              60     </reversemaxpower>

  <function name="EnginePowerVC">
   <table>
    <description> Engine power, function of airspeed and pressure </description>
    <independentVar lookup="row">atmosphere/rho-slugs_ft3</independentVar>
    <independentVar lookup="column">velocities/ve-kts</independentVar>
    <independentVar lookup="table">fcs/throttle-pos-norm</independentVar>
    <tableData breakPoint="0.52">
		0	97	194	291	340
0.000800787	0.4386	0.4806	0.5205	0.598	0.6499
0.000904867	0.4933	0.5405	0.5873	0.6707	0.7265
0.001018993	0.548	0.6004	0.654	0.7434	0.803
0.001143818	0.6046	0.6624	0.7239	0.8189	0.8846
0.001280017	0.6665	0.7303	0.7983	0.9026	0.9725
0.00142829	0.7286	0.7983	0.8748	0.9916	1.063
0.001589358	0.7946	0.8706	0.9551	1.0829	1.1415
0.001763967	0.8606	0.943	1.0239	1.1155	1.1787
0.001952885	0.885	0.9697	1.0396	1.1472	1.2159
0.002156907	0.8993	0.9853	1.0579	1.1632	1.1995
0.002376848	0.9082	0.9951	1.0336	1.0935	1.1345
0.002613549	0.9082	0.9951	1.0336	1.0935	1.1345
    </tableData>
    <tableData breakPoint="1.0">
		0	97	194	291	340
0.000800787	0.4591	0.4591	0.497	0.5461	0.5809
0.000904867	0.5172	0.5172	0.5552	0.6136	0.6506
0.001018993	0.5753	0.5753	0.6135	0.681	0.7204
0.001143818	0.6337	0.6337	0.6743	0.7485	0.7901
0.001280017	0.6962	0.6962	0.7388	0.8159	0.8599
0.00142829	0.7586	0.7586	0.8048	0.8834	0.9111
0.001589358	0.8247	0.8247	0.8795	0.9109	0.9105
0.001763967	0.8921	0.8921	0.9134	0.9102	0.9099
0.001952885	0.9128	0.9128	0.9116	0.9095	0.9093
0.002156907	0.9105	0.9105	0.9099	0.9088	0.9087
0.002376848	0.9082	0.9082	0.9081	0.9082	0.9081
0.002613549	0.9082	0.9082	0.9081	0.9082	0.9081
    </tableData>
   </table>
  </function>

  <table name="EnginePowerRPM_N1" type="internal">
    <description> Engine Power, function of RPM and N1 </description>
    <tableData>
            0   5    90   91.2   92.2  93.4  94.1  95.2  96.5  100
         0  0   0.5  0.5   0.5    0.5   0.5   0.5   0.5   0.5  0.5
       200  0   0.1  253   326    747  1212  1410  1721  2019  2550
    </tableData>
  </table>

  <table name="ITT_N1" type="internal">
    <description> Inter-Turbine Temperature ITT [deg C] depending on N1 and engine run (0=off / 1=running) </description>
    <tableData>
              0     1
        0     0     0
       15   100   100
       60   180   520
       96   270   680
      100   280   730
    </tableData>
  </table>

  <table name="CombustionEfficiency_N1" type="internal">
    <description>Dependency of fuel efficiency coefficient on N1 (and RPM)</description>
    <tableData>
      90    0.1221
      91.2  0.2834
      92.2  0.5336
      93.4  0.7188
      94.1  0.7741
      95.2  0.8471
      96.5  0.9001
     100    1
    </tableData>
  </table>

</turboprop_engine>
