New method of recording results obtained with static tests on undercarriage units; recorder consists of three large cathode ray oscillograph tubes with amplifiers and special camera to record oscillograph spot movement on 6-in. photographic strip; accelerometer is of variable gap condenser type.
Cathode ray undercarriage testing
Aircraft Eng
Aircraft Engineering ; 12 , n 131 ; p 17
1940
Article (Journal)
English
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