<?xml version="1.0" encoding="UTF-8"?>

<!--
 Written by Flavien BLANC
 Modified by PAF team  - April 2012

 Copyright (C) 2011-2012  Flavien BLANC  - http://equipe-flightgear.forumactif.com/u56
 Copyright (C) 2012  Clément DE L'HAMAIDE  - http://equipe-flightgear.forumactif.com/u115


 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License as
 published by the Free Software Foundation; either version 2 of the
 License, or (at your option) any later version.

 This program is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not see <http://www.gnu.org/licenses/>.
-->

<!-- curves from NACA Report 640, 27.5°
 http://naca.central.cranfield.ac.uk/reports/1938/naca-report-640.pdf -->

<propeller name="prop">
  <ixx>   1.86 </ixx>
  <diameter unit="M">  1.7 </diameter>
  <numblades> 2 </numblades>
  <gearratio>  1 </gearratio> <!-- 0.8 -->
  <p_factor>   5.29 </p_factor>

  <table name="C_THRUST" type="internal">
     <tableData>
0.00	0.1150
0.10	0.1135
0.20	0.1115
0.30	0.1090
0.40	0.1080
0.50	0.1057
0.60	0.1025
0.65	0.1000
0.70	0.0980
0.75	0.0935
0.80	0.0890
0.85	0.0840
0.90	0.0775
0.95	0.0710
1.00	0.0640
1.20	0.0340
1.3	0.0200
1.50	-0.0160
2.00	-0.0450
3.00	-0.0500
     </tableData>
  </table>


  <table name="C_POWER" type="internal">
     <tableData>
0.00	0.1255
0.10	0.1225
0.20	0.1190
0.30	0.1165
0.40	0.1110
0.50	0.1070
0.60	0.1020
0.65	0.1005
0.70	0.0990
0.75	0.0960
0.80	0.0940
0.85	0.0905
0.90	0.0870
0.95	0.0825
1.00	0.0750
1.20	0.0475
1.3	0.0325
1.50	-0.0040
2.00	-0.0300
3.00	-0.0330
     </tableData>
  </table>

<!-- thrust effects of helical tip Mach -->
<table name="CT_MACH" type="internal">
  <tableData>
    0.85   1.0
    1.05   0.8
  </tableData>
</table>

<!-- power-required effects of helical tip Mach -->
<table name="CP_MACH" type="internal">
  <tableData>
    0.85   1.0
    1.05   1.8
    2.00   1.4
  </tableData>
</table>

</propeller>