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ShareWare OnLine Volume 2 (CMS Software)(1993).iso
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1993-02-09
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PROP SAMPLE RUN #2: GREAT AMERICA PROP, CONTINENTAL O200, VARIEZE DRAG DATA
CONTROL
IOPT=1,2,3
NPAYOFF=2
IPT=2
END
DESLIM
DLIM=50 100 <-----Chosen diameter limits
PITLIM= 50 100 <-----Chosen pitch limits
THRRQD=150 <-----Required minimum static thrust input
END
DESVAR
DIAM=56 PITCH=68 NB=2 <---Starting values
RPMREF=2400 <---
END
PROP OPTIMIZER PROGRAM
Copyright 1992 Donald R Bates/BATES ENGINEERING
2742 Swansboro Road, Placerville, CA 95667
Phone/FAX 916-622-1886
>>>> INITIAL DESIGN:
PROPELLER DESIGN PERFORMANCE
NUMBER OF BLADES = 2 VELOCITY, MPH = 140.988 <----
DIAMETER, INCHES = 56.0000 ALTITUDE, FEET = 8500.00
PITCH, INCHES = 68.0000 DENSITY, SLUGS = 0.183979E-02
BLADE ACTIVITY FACTOR= 98.5670 THRUST, POUNDS = 68.8342
TOTAL ACTIVITY FACTOR= 197.134 DRAG, POUNDS = 68.8341
ADVANCE RATIO, J = 1.10776 THRUST HP = 29.7793
PITCH ANGLE DEG @75%R= 27.2647 HP REQUIRED = 34.2669
BLADE ALPHA DEG @75%R= 2.08418 HP AVAILABLE = 63.9673
THRUST COEF, CT = 0.493047E-01 PROPELLER RPM = 2400.00
POWER COEF, CP = 0.628486E-01 ENGINE RPM = 2400.00
EFFICIENCY, ETA = 0.869041 REDUCT FACTOR = 1.00000
COMPRESS LOSS FACTOR = 1.00000 SFC, LB/HP/HR = 0.603000
EQUIVALENT CNST CHORD= 3.53830 MILES/GALLON = 40.9394
SPEED OF SOUND, FPS = 1083.31 FUEL FLOW, PPH = 20.6630
TIP SPEED, FPS = 621.820 FUEL FLOW, GPH = 3.44383
TIP MACH NUMBER = 0.573998 CAFE SCORE = 3108.48
STA FRACTION SHAPE FACTOR BLADE STATION BLADE CHORD CHORD ANGLE
OF RADIUS ON ECC INCHES INCHES DEGREES
0.2000 1.272 5.600 4.500 62.64
0.3000 1.272 8.400 4.500 52.18
0.4000 1.413 11.20 5.000 44.02
0.5000 1.464 14.00 5.180 37.71
0.6000 1.422 16.80 5.030 32.79
0.7000 1.309 19.60 4.630 28.91
0.8000 1.114 22.40 3.940 25.79
0.9000 0.8394 25.20 2.970 23.24
1.000 0.5087 28.00 1.800 21.13
FIXED PITCH STATIC PERFORMANCE
SURFACE ALTITUDE FT = 0.000000 STATIC THRUST LB = 169.907 <----
STATIC PROPELLER RPM = 2465.51 THRUST HP = 89.6860
STATIC ENGINE RPM = 2465.51 HP REQUIRED = 89.6860
HP CORRECTION FACTOR = 1.00000 HP AVAILABLE = 89.6860
PROP SAMPLE RUN: GREAT AMERICA PROP, CONTINENTAL O200, VARIEZE DRAG DATA
>>>> OPTIMIZED DESIGN:
VARIABLE INITIALLY OPTIMIZED LOWER LIMIT UPPER LIMIT OPTION FLAG
AFTOT 197.134 140.000 140.000 1100.00 IOPT( 1)= 1
DIAM 56.0000 78.1997 50.0000 100.000 IOPT( 2)= 2
PITCH 68.0000 72.3049 50.0000 100.000 IOPT( 3)= 3
PROPELLER DESIGN PERFORMANCE
NUMBER OF BLADES = 2 VELOCITY, MPH = 172.009 <----
DIAMETER, INCHES = 78.1997 ALTITUDE, FEET = 8500.00
PITCH, INCHES = 72.3049 DENSITY, SLUGS = 0.183979E-02
BLADE ACTIVITY FACTOR= 70.0000 THRUST, POUNDS = 102.457
TOTAL ACTIVITY FACTOR= 140.000 DRAG, POUNDS = 102.457
ADVANCE RATIO, J = 0.967830 THRUST HP = 54.8290
PITCH ANGLE DEG @75%R= 21.4260 HP REQUIRED = 63.9673
BLADE ALPHA DEG @75%R=-0.904849 HP AVAILABLE = 63.9673
THRUST COEF, CT = 0.193001E-01 PROPELLER RPM = 2400.00
POWER COEF, CP = 0.217924E-01 ENGINE RPM = 2400.00
EFFICIENCY, ETA = 0.857142 REDUCT FACTOR = 1.00000
COMPRESS LOSS FACTOR = 1.00000 SFC, LB/HP/HR = 0.603000
EQUIVALENT CNST CHORD= 3.50896 MILES/GALLON = 26.7564
SPEED OF SOUND, FPS = 1083.31 FUEL FLOW, PPH = 38.5723
TIP SPEED, FPS = 856.885 FUEL FLOW, GPH = 6.42871
TIP MACH NUMBER = 0.790985 CAFE SCORE = 3222.21
STA FRACTION SHAPE FACTOR BLADE STATION BLADE CHORD CHORD ANGLE
OF RADIUS ON ECC INCHES INCHES DEGREES
0.2000 1.272 7.820 4.463 56.10
0.3000 1.272 11.73 4.463 44.86
0.4000 1.413 15.64 4.959 36.70
0.5000 1.464 19.55 5.137 30.73
0.6000 1.422 23.46 4.988 26.27
0.7000 1.309 27.37 4.592 22.85
0.8000 1.114 31.28 3.907 20.16
0.9000 0.8394 35.19 2.945 17.99
1.000 0.5087 39.10 1.785 16.22
FIXED PITCH STATIC PERFORMANCE
SURFACE ALTITUDE FT = 0.000000 STATIC THRUST LB = 150.000 <----
STATIC PROPELLER RPM = 1269.83 THRUST HP = 34.4313
STATIC ENGINE RPM = 1269.83 HP REQUIRED = 34.4313
HP CORRECTION FACTOR = 1.00000 HP AVAILABLE = 34.4313
CONSTRAINT VALUES ARE A MEASURE OF THE DEGREE OF OPTIMIZATION.
EQUALITY CONSTRAINTS ARE SATISFIED WHEN = 0
INEQUALITY CONSTRAINTS ARE SATISFIED WHEN => 0
TYPE: EQUALITY = 0, UPPER BOUND = 1, LOWER BOUND = -1
SYSTEM CONSTRAINT VALUES:
NAME TYPE ACTIVE INACTIVE
HPREQ 0 -0.2950E-06
AFBMAX 1 533.3
THRRQD -1 0.8856E-05
PAYOFF=-1.722 (-VEL) NRUN= 126 NC= 3 NEC= 1