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- PROP SAMPLE RUN #1: GREAT AMERICA PROP, CONTINENTAL O200, VARIEZE DRAG DATA
- CONTROL
- IOPT=1,2,3
- NPAYOFF=2
- IPT=2
- END
- DESLIM
- DLIM=50 100
- PITLIM= 50 100
- END
- DESVAR
- DIAM=56 PITCH=68 NB=2
- 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 197.134 300.000 140.000 1100.00 IOPT( 1)= 1
- DIAM 56.0000 60.3022 50.0000 100.000 IOPT( 2)= 2
- PITCH 68.0000 79.7645 50.0000 100.000 IOPT( 3)= 3
-
- PROPELLER DESIGN PERFORMANCE
-
- NUMBER OF BLADES = 2 VELOCITY, MPH = 175.809
- DIAMETER, INCHES = 60.3022 ALTITUDE, FEET = 8500.00
- PITCH, INCHES = 79.7645 DENSITY, SLUGS = 0.183979E-02
- BLADE ACTIVITY FACTOR= 150.000 THRUST, POUNDS = 107.034
- TOTAL ACTIVITY FACTOR= 300.000 DRAG, POUNDS = 107.034
- ADVANCE RATIO, J = 1.28281 THRUST HP = 56.6560
- PITCH ANGLE DEG @75%R= 29.3095 HP REQUIRED = 63.9673
- BLADE ALPHA DEG @75%R= 0.743799 HP AVAILABLE = 63.9673
- THRUST COEF, CT = 0.570200E-01 PROPELLER RPM = 2400.00
- POWER COEF, CP = 0.825849E-01 ENGINE RPM = 2400.00
- EFFICIENCY, ETA = 0.885702 REDUCT FACTOR = 1.00000
- COMPRESS LOSS FACTOR = 1.00000 SFC, LB/HP/HR = 0.603000
- EQUIVALENT CNST CHORD= 5.79829 MILES/GALLON = 27.3475
- SPEED OF SOUND, FPS = 1083.31 FUEL FLOW, PPH = 38.5723
- TIP SPEED, FPS = 682.099 FUEL FLOW, GPH = 6.42871
- TIP MACH NUMBER = 0.629642 CAFE SCORE = 3347.81
-
- STA FRACTION SHAPE FACTOR BLADE STATION BLADE CHORD CHORD ANGLE
- OF RADIUS ON ECC INCHES INCHES DEGREES
-
- 0.2000 1.272 6.030 7.374 64.65
- 0.3000 1.272 9.045 7.374 54.44
- 0.4000 1.413 12.06 8.194 46.33
- 0.5000 1.464 15.08 8.489 39.98
- 0.6000 1.422 18.09 8.243 34.98
- 0.7000 1.309 21.11 7.587 31.00
- 0.8000 1.114 24.12 6.457 27.78
- 0.9000 0.8394 27.14 4.867 25.15
- 1.000 0.5087 30.15 2.950 22.96
-
- FIXED PITCH STATIC PERFORMANCE
-
- SURFACE ALTITUDE FT = 0.000000 STATIC THRUST LB = 124.193
- STATIC PROPELLER RPM = 1536.56 THRUST HP = 48.0056
- STATIC ENGINE RPM = 1536.56 HP REQUIRED = 48.0056
- HP CORRECTION FACTOR = 1.00000 HP AVAILABLE = 48.0056
-
- 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 0.3469E-06
- AFBMAX 1 0.0000
-
- PAYOFF=-1.760 (-VEL) NRUN= 50 NC= 2 NEC= 1
-