TABLE 7 - STANDARD ERROR AT A 95 PERCENT CONFIDENCE LEVEL OF MEASURED MEAN 



PRESSURE COEFFICIENTS FROM C VERSUS J CURVES 



P 









TABLE 7A - 



PROPELLER 4718 











Uniform 



Flow (c ) 



Inclined Flow (c ) 



Gage 



x/c 



r/R 





P 





P 



1st Order 



2nd Order 



1st Order 



2nd Order 



1 



0.900 



0.500 



0.0059 



0.0058 



0.0106 



0.0094 



2 



0.700 



0.500 



0.0108 



0.0107 



0.0193 



0.0192 



3 



0.500 



0.500 



0.0700 



0.0054 



0.0205 



0.0205 



4 



0.350 



0.500 



0.0205 



0.0205 



0.0174 



0.0174 



5 



0.200 



0.500 



0.0061 



0.0061 



0.0147 



0.0147 



6 



0.080 



0.500 



0.0093 



0.0069 



0.0177 



0.0163 



7 



0.030 



0.500 



0.0261 



0.0091 



0.0419 



0.0394 



8 



0.900 



0.700 



0.0041 



0.0032 



0.0062 



0.0060 



9 



0.700 



0.700 



0.0031 



0.0028 



0.0070 



0.0069 



10 



0.500 



0.700 



0.0057 



0.0049 



0.0076 



0.0073 



11 



0.400 



0.700 



0.0046 



0.0034 



0.0073 



0.0069 



12 



0.300 



0.700 



0.0039 



0.0032 



0.0093 



0.0090 i 



13 



0.200 



0.700 



0.0039 



0.0033 



0.0070 



0.0068 



14 



0.100 



0.700 



0.0038 



0.0037 



0.0076 



0.0076 



15 



0.030 



0.700 



0.0118 



0.0094 



0.0271 



0.0271 



16 



0.800 



0.900 



0.0038 



0.0029 



0.0061 



0.0061 



17 



0.600 



0.900 



0.0045 



0.0033 



0.0059 



0.0056 



18 



0.400 



0.900 



0.0036 



0.0029 



0.0070 



0.0069 



19 



0.200 



0.900 



0.0029 



0.0027 



0.0064 



0.0058 



20 



0.075 



0.900 



0.0064 



0.0048 



0.0147 



0.0121 



21 



0.030 



0.500 



0.0248 



0.0082 



0.0259 



0.0179 



22 



0.080 



0.500 



A 



* 



* 



* 



23 



0.200 



0.500 



0.0069 



0.0042 



0.0119 



0.0111 



24 



0.350 



0.500 



0.0119 



0.0075 



0.0150 



0.0146 



25 



0.500 



0.500 



0.0104 



0.0079 



0.0220 



0.0219 



26 



0.700 



0.500 



* 



* 



0.0217 



0.0211 



27 



0.900 



0.500 



0.0050 



0.0044 



0.0099 



0.0095 



28 



0.030 



0.700 



0.0237 



0.0054 



0.0240 



0.0141 



29 



0.100 



0.700 



0.0041 



0.0041 



0.0131 



0.0130 



30 



0.200 



0.700 



0.0066 



0.0064 



0.0110 



0.0110 



31 



0.300 



0.700 



0.0054 



0.0042 



0.0116 



0.0114 



32 



0.400 



0.700 



0.0046 



0.0036 



0.0112 



0.0112 



33 



0.500 



0.700 



0.0089 



0.0078 



0.0140 



0.0140 



34 



0.700 



0.700 



0.0055 



0.0046 



0.0141 



0.0140 



35 



0.900 



0.700 



0.0031 



0.0027 



0.0074 



0.0072 



36 



0.075 



0.900 



0.0095 



0.0061 



0.0090 



0.0082 



37 



0.200 



0.900 



0.0070 



0.0036 



0.0097 



0.0080 



38 



0.400 



0.900 



0.0033 



0.0030 



0.0072 



0.0072 



39 



0.600 



0.900 



0.0040 



0.0027 



0.0067 



0.0065 



40 



0.800 



0.900 



0.0065 



0.0031 



0.0081 



0.0065 



*r 



amaged g 



age. 











210 



