20 



EXPERIMENTS IN AERODYNAMICS. 



Table III.— August 28, 188S. 



S. !' Langl] v, Con h ctbif) < qperiments; V. W. Very, Assisting. 



Wind plane. 1 fool sq ' square centimeters); center of wind plane, '•* in. from axis of 



rotation; barometer, 736.6 mm.; temperature, 19° .4 C; mean wind velocity, 0.37 meters per 



second. 



- 



2:26 



2:52 



3:40 



4:30 



to' 

 a 



< 



90° 



'.HI 



30 



r» 



90 

 90 



45 



45 



30 



30 



15 



15 

 7.:. 

 7.5 



90 



'.in 



45 



4--, 



30 



30 



i:. 



1.-, 

 7.5 

 7.5 



90 



'.hi 



30 



30 

 77, 

 7.5 



- *f 



■r. O 



c o 



Q-ri 



CO' 



12.1 12 

 12.62 

 12.62 

 12,57 

 6.45 

 6.52 

 6.48 

 6.51 

 6.45 

 6.45 

 6.43 

 6.40 

 6.44 

 (',. 15 

 5.1 15 

 5.34 

 5.11) 

 5.29 

 5.26 

 5.44 

 5.09 

 5. is 

 L95 

 5.:;:; 

 5.7:i 

 5.78 

 :,,5:; 

 5.56 

 5.11 

 5.09 



- -_■ 

 _ a 



; 





LIS 



I. IS 



4.48 



4.50 



8.77 



8.67 



8.73 



8.69 



s.77 



8.77 



8.79 



8.8 1 



8.78 



s.77 



1 1 .21 1 



10.59 



10.90 



L0.69 



10.75 



10.40 



11.11 



10.92 



11.12 



10.61 



'.1.77 



9.78 



10.23 



U».17 



10.45 



11.11 



£ o ^ 



o ■ 



P 



1.03 

 1.00 



ii.7(i 



0.65 

 3.25 



3.15 

 3.30 

 3.10 

 3.00 

 3.20 

 2.1 15 

 l.'.m 

 1.45 

 1.15 

 5.40 

 1.51) 

 4.00 

 1.1" 

 4.40 

 3.90 

 2.35 

 2.2i ' 

 1.30 

 1.45 



.I'..:! 



3.85 

 3.85 

 3.60 

 1.20 



1.75 



- ■- 



a tt S 



3 - a 



g ti 



0.180 

 0.176 

 0.122 

 0.112 

 0.576 

 0.561 

 1 (.585 

 0.551 

 0.532 

 0.566 

 0.366 

 0.341 

 0.259 

 0.205 

 0.930 

 0.786 

 0.702 

 0.722 

 0.771 

 0.683 

 0.41 5 

 0.387 

 0.230 

 0.25'. 1 

 0.683 

 0.673 

 0.673 

 0.634 

 0.215 

 0.312 



_P 

 V 



0.0090 



1 I.I II ISS 



1 1.1 11 175 

 1 11 11 175 



I Mil 171 



0.0070 



oni >72 



11,1.1711 



- 1 90 



.0077 V* 



n.15.5 

 0.156 



0.587 

 0.581 

 0.592 

 0.592 

 0.595 

 0.602 

 0.594 

 0.592 



0.915 



(ISM I 

 (I.S'.III 



us:::; 

 11.05(1 



0.918 

 1.004 

 0.867 



II.MKi 



0.796 

 0.841 



0.950 



H.7'. 1 

 (1.72 



1.(1(1 

 0.95 

 0.90 

 0.96 

 0.61 

 (1.57 

 U.44 

 11.:;:, 



n.77 

 , 1 S2 



( 1.87 

 0.82 



0.44 



0.42 



112:: 

 ,i:;u 



(|.S4 

 0.80 



11.21; 



11.:;:; 



REMARKS. — During these experiments tin' slight breeze has almost died away ; angle of mean 

 made by plane set at 90° with vertical plumb line drawn on register sheet = 95°. 



