20 



EXPERIMENTS IN AERODYNAMICS. 



Table III.— August 28, 188S. 



S. P. L.4NGLEY, Conductinr/ experiments ; F. W. Very, Assisting. 



Wind plane, 1 foot square (929 square centimeters) ; center of wind plane, 9 m. from axis of 

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

 second. 



> 



3 



o 

 3 



(p. 7)1.) 



2:26 



2:52 



3:40 



4:30 





_ o 



to' 



c 



< 



90° 



90 



80 



15 



90 



90 



45 



45 



30 



30 



15 



15 

 7.5 

 7.5 



90 



90 



45 



45 



30 



30 



15 



15 

 7.5 

 7.5 



90 



90 



30 



30 

 7.5 

 7.5 





a o 



i| 



12.62 

 12.62 

 12.62 

 12.57 

 6.45 

 6.52 

 6.48 

 6.51 

 6.45 

 6.45 

 6.43 

 6.40 

 6.44 

 G.45 

 5.05 

 5.34 

 5.19 

 5.29 

 5.26 

 5.44 

 5.09 

 5.18 

 4.95 

 5.33 

 5.79 

 5.78 

 5.53 

 5.56 

 5.41 

 5.09 



<u G d 



o a a 

 o f-H ^ 



^ .^ 02 

 O i. f-i 



£ o g 



4.48 



4.48 



4.48 



4.50 



8.77 



8.67 



8.73 



8.69 



8.77 



8.77 



8.79 



8.84 



8.78 



8.77 



11.20 



10.59 



10.90 



10.69 



10.75 



10.40 



11.11 



10.92 



11.42 



10.61 



9.77 



9.78 



10.23 



10.17 



10.45 



11.11 



& S rt 



!h C O 

 ■*^ C^ 



Teg >, 



65°.8 

 78 .8 



48 .5 



46 .0 



61 .5 



60 .5 



75 .6 



76 .5 

 86 .0 

 80 .5 



48 .0 



48 .0 



60 .5 



59 .0 



81 .0 



75 .5 



84 .5 



59 .0 



58 .8 



85 .0 



75 .0 





^ V 



2 s- 



S " 



.f.^ r- 



ff3 O O 



p 



1.03 

 1.00 

 0.70 

 0.65 

 3.25 

 3.15 

 3.30 

 3.10 

 3.00 

 3.20 

 2.05 

 1.90 

 1.45 

 1.15 

 5.40 

 4.50 

 4.00 

 4.10 

 4.40 

 3.90 

 2.35 

 2.20 

 1.30 

 1.45 

 3.90 

 3.85 

 3.85 

 3.60 

 1.20 

 1.75 



o S 



0.180 

 0.176 

 0.122 

 0.112 

 0.576 

 0.561 

 0.585 

 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 

 0.415 

 0.387 

 0.230 

 0.259 

 0.683 

 0.673 

 0.673 

 0.634 

 0.215 

 0.312 





0.0090 

 0.0088 



0.0075 

 0.0075 



0.0074 

 0.0070 



0.0072 

 0.0070 



.0077 V 



0.155 

 0.156 



0.587 

 0.581 

 0.592 

 0.592 

 0.595 

 0.602 

 0.594 

 0.592 



0.915 

 O.SSO 

 0.890 

 0.833 

 0.950 

 0.918 

 1.004 

 0.867 



0.806 

 0.796 

 0.841 

 0.950 



Pa 



p 



-* on 



0.79 

 0.72 



1.00 

 0.95 

 0.90 

 0.96 

 0.61 

 0.57 

 0.44 

 0.35 



0.77 

 0.82 

 0.87 

 0.82 

 0.44 

 0.42 

 0.23 

 0.30 



0.84 

 0.80 

 0.26 

 0.33 



Remarks. — During these experiments the slight breeze has almost died away ; angle of mean 

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



