fgdata/Engine/prop_75in2f.xml

<?xml version="1.0"?>
<FG_PROPELLER  NAME="Fixed-Pitch 75-inch Two-Blade Propeller">
  IXX       1.67
  DIAMETER  75
  NUMBLADES  2
  MINPITCH 23
  MAXPITCH 23
  C_THRUST 12 1
  0.0   0.065
  0.1   0.066
  0.2   0.067
  0.3   0.068
  0.4   0.080
  0.5   0.095
  0.6   0.110
  0.7   0.112
  0.8   0.110
  0.9   0.095
  1.0   0.080
  1.1   0.062
  1.2   0.045
  1.3  -0.001
  C_POWER 12 1
  0.00  0.0575
  0.10  0.0578
  0.20  0.0590
  0.30  0.0570
  0.40  0.0562
  0.50  0.0555
  0.60  0.0534
  0.70  0.0507
  0.80  0.0480
  0.90  0.0440
  1.00  0.0400
  1.05  0.0100
</FG_PROPELLER>
Yet another propeller model -- this one is custom-tweaked to allow the C172R to hit some published performance numbers (including 122kt cruise at 80% power, 8000ft ASL when the engine is leaned for performance). This will be replaced with a more accurate model when we have data available. 2001-12-21 12:47:51 +00:00			`<?xml version="1.0"?>`
			`<FG_PROPELLER NAME="Fixed-Pitch 75-inch Two-Blade Propeller">`
			`IXX 1.67`
			`DIAMETER 75`
			`NUMBLADES 2`
Adjusted to hit some published C172R performance numbers with the current aero model. 2002-01-05 20:19:42 +00:00			`MINPITCH 23`
			`MAXPITCH 23`
			`C_THRUST 12 1`
			`0.0 0.065`
			`0.1 0.066`
			`0.2 0.067`
			`0.3 0.068`
			`0.4 0.080`
			`0.5 0.095`
			`0.6 0.110`
			`0.7 0.112`
			`0.8 0.110`
			`0.9 0.095`
			`1.0 0.080`
			`1.1 0.062`
			`1.2 0.045`
			`1.3 -0.001`
			`C_POWER 12 1`
			`0.00 0.0575`
			`0.10 0.0578`
			`0.20 0.0590`
			`0.30 0.0570`
			`0.40 0.0562`
			`0.50 0.0555`
			`0.60 0.0534`
			`0.70 0.0507`
			`0.80 0.0480`
			`0.90 0.0440`
			`1.00 0.0400`
			`1.05 0.0100`
Yet another propeller model -- this one is custom-tweaked to allow the C172R to hit some published performance numbers (including 122kt cruise at 80% power, 8000ft ASL when the engine is leaned for performance). This will be replaced with a more accurate model when we have data available. 2001-12-21 12:47:51 +00:00			`</FG_PROPELLER>`