The main rotor stabiliser bar hydraulic dampers have been set too stiff. This would cause
- too much stability and over sensitive controls.
- too much stability and less sensitive controls.
- instability and over sensitive controls.
Explanation from PART66Online
On a rotor with a Bell-type stabiliser bar, hydraulic dampers between the bar and the mast set the rate at which the bar follows the mast, and with it the degree of stability the bar gives. Dampers set too stiff make the bar follow the mast too quickly, so its stabilising effect is lost and the helicopter becomes less stable and more sensitive to control inputs. Too little damping has the opposite effect: the bar holds its plane so firmly that stability becomes excessive and desirable control response is lost.
F
frac84 asked · 18 Dec 2023
why?
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