TR No. 22 
using 
| 
TGs CHES) J 
Dey dais eel 
2a; y) 
Tyee ae yy (32) 
Swim 
For each wind tunnel velocity the quantity 
|= eee 
N= (Mey yee) 
was calculated from the recorded data and plotted as a function of time; 
figure A-3 is representative of the results. The response time in air was 
determined from the slope of the straight line fitted through the points 
using the least squares method: 
lv 
ab 
slope 
ain 
The reciprocal of the response time in air was plotted as a function 
of air velocity (figure A+), and the response distance in air was determined 
from the slope of the straight line through the points. The response distance 
in water was computed according to equation (29), a value of 0.97 cm resulting. 
A=8 
