of main spool; pilot, l tota o contro ]-Kc : piston 1/3 spring; equivalent of load. implifications are -X(S)] variation of load inertia inertial force with pitching angle varying are ignored because pitch velocity is usually =--------------------------------

Chapter

ABSTRACT

AbPpCS>-AxPxCS>=Mxs2 xcs> + BxSXCS>+KxxXCS)+KxpPLCS)

' ' AAsPAS<S>-AAsPAsCS) =MyS2YCS>+BySYCSl+KyYCS) +Kyy[YCS>-XCSll+KypPxCS>

(1 0)

~SPxCS)=AxSXCS)-GHJ [PLCS) - Px C S) l-Kc2. Px C S >- Kq2 [ Y C S)

A1PpCS>-A2PJ.CS>=Mzs2zcs> pilot valves respectively. +BzSZCS>-FLCS) C12) Kql ,Kq2 flow magnifying

..----------~A ,1---------~

Tv1 =-------------------------------- KrxKryK~ Az+A1K~ C1+Krx)