2015-07-05 18:32:41 +00:00
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<?xml version="1.0"?>
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<!--
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2015-07-24 17:37:16 +00:00
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Diameter: 76 in (1.93 m)
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Calculated blade angle: at 75% of the radius
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Data from NACA Report 640 : http://naca.central.cranfield.ac.uk/reports/1938/naca-report-640.pdf
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2015-07-05 18:32:41 +00:00
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-->
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<propeller name="15 -25 deg NACA 640 (5868-9) 76-inch Two-Blade Propeller">
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2015-07-24 17:37:16 +00:00
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<ixx> 1.67 </ixx>
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<diameter unit="IN"> 76.0 </diameter>
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<numblades> 2 </numblades>
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<minpitch> 15 </minpitch>
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<maxpitch> 25 </maxpitch>
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2015-07-05 18:32:41 +00:00
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2015-07-24 17:37:16 +00:00
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<table name="C_THRUST" type="internal">
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<tableData>
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15 20 25
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0 0.0990 0.1040 0.1125
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0.1 0.0950 0.1040 0.1100
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0.2 0.0880 0.1030 0.1075
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0.3 0.0780 0.1010 0.1060
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0.4 0.0645 0.0930 0.1055
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0.5 0.0495 0.0820 0.1045
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0.6 0.0340 0.0700 0.0970
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0.7 0.0185 0.0550 0.0870
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0.8 0.0040 0.0390 0.0750
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0.9 -0.0160 0.0240 0.0600
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1 -0.0300 0.0060 0.0450
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1.1 -0.0400 -0.0140 0.0300
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1.2 -0.0500 -0.0330 0.0150
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1.3 -0.0550 -0.0450 -0.0010
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1.5 -0.0650 -0.0600 -0.0250
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2 -0.0750 -0.0720 -0.0750
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3 -0.0800 -0.0800 -0.0900
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</tableData>
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</table>
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<table name="C_POWER" type="internal">
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<tableData>
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15 20 25
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0 0.0400 0.0660 0.1080
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0.1 0.0406 0.0650 0.1060
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0.2 0.0406 0.0640 0.1020
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0.3 0.0400 0.0625 0.0975
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0.4 0.0366 0.0600 0.0910
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0.5 0.0318 0.0580 0.0860
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0.6 0.0250 0.0540 0.0825
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0.7 0.0160 0.0475 0.0790
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0.8 0.0050 0.0370 0.0730
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0.9 -0.0067 0.0260 0.0640
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1 -0.0150 0.0100 0.0520
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1.1 -0.0200 0.0000 0.0375
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1.2 -0.0250 -0.0100 0.0220
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1.3 -0.0270 -0.0200 0.0040
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1.5 -0.0300 -0.0350 -0.0450
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2 -0.0330 -0.0500 -0.0750
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</tableData>
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</table>
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2015-07-05 18:32:41 +00:00
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</propeller>
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