Some Design Considerations for a Hydraulic Servo: A Treatment of a Type in which the two-stage Control Valve has a Flapper-Nozzle Valve as its First Stage

Author： Nightingale J.M.  

Publisher： Emerald Group Publishing Ltd

ISSN： 0002-2667

Source： Aircraft Engineering, Vol.28, Iss.8, 1993-12, pp. : 254-258

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