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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,179 @@ | ||
| <?xml version="1.0"?> | ||
|
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| <!-- | ||
| Copyright (c) 2020 Simon 'bomber' Morley | ||
| simonbomber64 at googlemail.com | ||
| This work is licensed under the | ||
| Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. | ||
| To view a copy of this license, | ||
| visit http://creativecommons.org/licenses/by-nc-sa/_3.0/ or | ||
| send a letter to Creative Commons, PO Box 1866, Mountain View, Cd 94042, USA. | ||
| Attribution, You must give appropriate credit, provide a link to the license, | ||
| and indicate if changes were made. You may do so in any reasonable manner, | ||
| but not in any way that suggests the licensor endorses you or your use. | ||
| NonCommercial, You may not use the material for commercial purposes. | ||
| ShareAlike, If you remix, transform, or build upon the material, | ||
| you must distribute your contributions under the same license as the original. | ||
| ************************************************************************** | ||
| Based on tables from JavaProp. | ||
| 3.0 overall diameter | ||
| 0.25 cord diameter | ||
| --> | ||
|
|
||
| <propeller name="3 blade rotor for Avatar Scorpion" version="1.01"> | ||
|
|
||
| <!-- | ||
| <ixx> is the rotational moment of inertia for the propeller/engine combination. | ||
| Small numbers accelerate faster but bounce around more. Large numbers | ||
| accelerate slower and regulate smoother. | ||
| I = m*D^2/12 | ||
| m=114kg | ||
| d=3.0 | ||
| --> | ||
|
|
||
| <ixx unit="SLUG*FT2">63</ixx> <!-- 88.5 kgm2 use in engine system for precession --> | ||
|
|
||
| <!-- | ||
| Prop Characteristics | ||
| --> | ||
|
|
||
| <diameter unit="IN">118</diameter> | ||
| <numblades>3</numblades> | ||
| <constspeed> 0 </constspeed> | ||
|
|
||
| <!-- | ||
| <gearratio> is the gearing between the prop and the engine, | ||
| Normally it's defined from the engine to the propeller and is a value below zero | ||
| ie 0.477 | ||
| To specify from the propeller to the engine use 1/X = gearration = 1/0.477 = 2.09 | ||
| --> | ||
|
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||
| <gearratio>1.0</gearratio> | ||
|
|
||
| <!-- | ||
| <minpitch> is the Prop min AoA setting | ||
| <maxpitch> is the Prop max AoA setting | ||
| --> | ||
| <minpitch>-90</minpitch> | ||
| <maxpitch>90</maxpitch> | ||
|
|
||
| <!-- | ||
| Set the minrpm of the propeller to the props min rpm*engine to prop gearratio. | ||
| 1800*0.477 = 859 | ||
| This means the propeller will not try to slow the engine below that point. | ||
| <maxrpm> is the Prop Govenors max setting | ||
| --> | ||
| <minrpm>1770</minrpm> | ||
| <maxrpm>1770</maxrpm> | ||
|
|
||
| <!-- | ||
| <ct_factor> is the props co-efficent of thrust 'tuning' factor | ||
| <cp_factor> is the props co-efficent of power 'tuning' factor | ||
| --> | ||
|
|
||
| <ct_factor>2.0</ct_factor> | ||
| <cp_factor>0.8</cp_factor> | ||
|
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|
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||
| <table name="C_THRUST" type="internal"> | ||
| <tableData> | ||
| -90 -40.3 -31.2 -1 1 31.2 40.3 90 | ||
| -1.50 0.000000 -0.110445 -0.110445 0.340000 -0.340000 0.110445 0.110445 0.000000 | ||
| -1.40 0.000000 -0.118218 -0.118218 0.280000 -0.280000 0.118218 0.118218 0.000000 | ||
| -1.30 0.000000 -0.123320 -0.123320 0.230000 -0.230000 0.123320 0.123320 0.000000 | ||
| -1.20 0.000000 -0.125219 -0.125219 0.195000 -0.195000 0.125219 0.125219 0.000000 | ||
| -1.10 0.000000 -0.121235 -0.121235 0.160000 -0.160000 0.121235 0.121235 0.000000 | ||
| -1.00 0.000000 -0.120982 -0.120982 0.127000 -0.127000 0.120982 0.120982 0.000000 | ||
| -0.90 0.000000 -0.122855 -0.122855 0.100000 -0.100000 0.122855 0.122855 0.000000 | ||
| -0.80 0.000000 -0.124828 -0.124828 0.080000 -0.080000 0.124828 0.124828 0.000000 | ||
| -0.70 0.000000 -0.126652 -0.126652 0.060000 -0.060000 0.126652 0.126652 0.000000 | ||
| -0.60 0.000000 -0.128150 -0.128150 0.045000 -0.045000 0.128150 0.128150 0.000000 | ||
| -0.50 0.000000 -0.129223 -0.129223 0.030000 -0.030000 0.129223 0.129223 0.000000 | ||
| -0.40 0.000000 -0.129537 -0.129537 0.018503 -0.018503 0.129537 0.129537 0.000000 | ||
| -0.30 0.000000 -0.128793 -0.128793 0.007005 -0.007005 0.128793 0.128793 0.000000 | ||
| -0.20 0.000000 -0.127309 -0.127309 -0.004722 0.004722 0.127309 0.127309 0.000000 | ||
| -0.10 0.000000 -0.124974 -0.124974 -0.012658 0.012658 0.124974 0.124974 0.000000 | ||
| 0.00 0.000000 -0.124791 -0.124791 -0.032052 0.032052 0.124791 0.124791 0.000000 | ||
| 0.10 0.000000 -0.124974 -0.124974 -0.012658 0.012658 0.124974 0.124974 0.000000 | ||
| 0.20 0.000000 -0.127309 -0.127309 -0.004722 0.004722 0.127309 0.127309 0.000000 | ||
| 0.30 0.000000 -0.128793 -0.128793 0.007005 -0.007005 0.128793 0.128793 0.000000 | ||
| 0.40 0.000000 -0.129537 -0.129537 0.018503 -0.018503 0.129537 0.129537 0.000000 | ||
| 0.50 0.000000 -0.129223 -0.129223 0.030000 -0.030000 0.129223 0.129223 0.000000 | ||
| 0.60 0.000000 -0.128150 -0.128150 0.045000 -0.045000 0.128150 0.128150 0.000000 | ||
| 0.70 0.000000 -0.126652 -0.126652 0.060000 -0.060000 0.126652 0.126652 0.000000 | ||
| 0.80 0.000000 -0.124828 -0.124828 0.080000 -0.080000 0.124828 0.124828 0.000000 | ||
| 0.90 0.000000 -0.122855 -0.122855 0.100000 -0.100000 0.122855 0.122855 0.000000 | ||
| 1.00 0.000000 -0.120982 -0.120982 0.127000 -0.127000 0.120982 0.120982 0.000000 | ||
| 1.10 0.000000 -0.121235 -0.121235 0.160000 -0.160000 0.121235 0.121235 0.000000 | ||
| 1.20 0.000000 -0.125219 -0.125219 0.195000 -0.195000 0.125219 0.125219 0.000000 | ||
| 1.30 0.000000 -0.123320 -0.123320 0.230000 -0.230000 0.123320 0.123320 0.000000 | ||
| 1.40 0.000000 -0.118218 -0.118218 0.280000 -0.280000 0.118218 0.118218 0.000000 | ||
| 1.50 0.000000 -0.110445 -0.110445 0.340000 -0.340000 0.110445 0.110445 0.000000 | ||
| </tableData> | ||
| </table> | ||
|
|
||
| <table name="C_POWER" type="internal"> | ||
| <tableData> | ||
| -90.0 -40.3 -31.2 -1.0 1.0 31.2 40.3 90.0 | ||
| -1.5 1.280000 0.188507 0.023331 -0.340000 0.340000 0.023331 0.188507 1.280000 | ||
| -1.4 1.280000 0.193005 0.050075 0.280000 0.280000 0.050075 0.193005 1.280000 | ||
| -1.3 1.280000 0.193891 0.073218 0.230000 0.230000 0.073218 0.193891 1.280000 | ||
| -1.2 1.280000 0.190664 0.092880 0.195000 0.195000 0.092880 0.190664 1.280000 | ||
| -1.1 1.280000 0.192626 0.109194 0.160000 0.160000 0.109194 0.192626 1.280000 | ||
| -1.0 1.280000 0.194825 0.119833 0.127000 0.127000 0.119833 0.194825 1.280000 | ||
| -0.9 1.280000 0.195601 0.122393 0.100000 0.100000 0.122393 0.195601 1.280000 | ||
| -0.8 1.280000 0.198287 0.122722 0.080000 0.080000 0.122722 0.198287 1.280000 | ||
| -0.7 1.280000 0.202560 0.123284 0.055000 0.055000 0.123284 0.202560 1.280000 | ||
| -0.6 1.280000 0.208116 0.125553 0.038000 0.038000 0.125553 0.208116 1.280000 | ||
| -0.5 1.280000 0.214291 0.127910 0.015000 0.015000 0.127910 0.214291 1.280000 | ||
| -0.4 1.280000 0.219060 0.131194 0.000027 0.000027 0.131194 0.219060 1.280000 | ||
| -0.3 1.280000 0.221970 0.133622 0.003690 0.003690 0.133622 0.221970 1.280000 | ||
| -0.2 1.280000 0.223114 0.135676 0.006192 0.006192 0.135676 0.223114 1.280000 | ||
| -0.1 1.280000 0.222059 0.137127 0.007186 0.007186 0.137127 0.222059 1.280000 | ||
| 0.0 1.280000 0.200789 0.128083 0.006554 0.006554 0.128083 0.200789 1.280000 | ||
| 0.1 1.280000 0.222059 0.137127 0.007186 0.007186 0.137127 0.222059 1.280000 | ||
| 0.2 1.280000 0.223114 0.135676 0.006192 0.006192 0.135676 0.223114 1.280000 | ||
| 0.3 1.280000 0.221970 0.133622 0.003690 0.003690 0.133622 0.221970 1.280000 | ||
| 0.4 1.280000 0.219060 0.131194 0.000027 0.000027 0.131194 0.219060 1.280000 | ||
| 0.5 1.280000 0.214291 0.127910 0.015000 0.015000 0.127910 0.214291 1.280000 | ||
| 0.6 1.280000 0.208116 0.125553 0.038000 0.038000 0.125553 0.208116 1.280000 | ||
| 0.7 1.280000 0.202560 0.123284 0.055000 0.055000 0.123284 0.202560 1.280000 | ||
| 0.8 1.280000 0.198287 0.122722 0.080000 0.080000 0.122722 0.198287 1.280000 | ||
| 0.9 1.280000 0.195601 0.122393 0.100000 0.100000 0.122393 0.195601 1.280000 | ||
| 1.0 1.280000 0.194825 0.119833 0.127000 0.127000 0.119833 0.194825 1.280000 | ||
| 1.1 1.280000 0.192626 0.109194 0.160000 0.160000 0.109194 0.192626 1.280000 | ||
| 1.2 1.280000 0.190664 0.092880 0.195000 0.195000 0.092880 0.190664 1.280000 | ||
| 1.3 1.280000 0.193891 0.073218 0.230000 0.230000 0.073218 0.193891 1.280000 | ||
| 1.4 1.280000 0.193005 0.050075 0.280000 0.280000 0.050075 0.193005 1.280000 | ||
| 1.5 1.280000 0.188507 0.023331 0.340000 0.340000 0.023331 0.188507 1.280000 | ||
| </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 | ||
| </tableData> | ||
| </table> | ||
|
|
||
| </propeller> |