Response of Propulsors to Turbulence 



■lOr 



m -20- 



FREQUENCY^ 

 RESPONSE 



ENDEVCO MODEL 

 2110 FORCE GAGE 



DYNAMOMETER 



HOUSING MB MODEL EAI500 



ELECTROMAGNETIC 

 EXCITER 



NOTE: 



dBV=l VOLT rms = 27.0 lb rms 



-301- 



200 400 600 



800 1000 1200 1400 1600 1800 2000 

 FREQUENCY (Hz) 

 (a) 



2 3 4 5 6 



FORCE , lb (rms) 



(b) 



Fig. 8 - Linearity and frequency response of 

 the dynamic -force balance shown in Fig. 7 



305 



