A-380 Throttle Control

[gDavid]

Have found that the throttle slider controls the thrust percentage, but lets the N1 go where ever it feels like. Also found that fuel flow is directly set to match N1. The slider should control the fuel flow. What is happening is when doing an idle decent the aircraft starts speeding up, N1 increases, fuel flow increases, and I'm about the break the throttle slider to get it to slow down. Weight doesn't matter, from max load to just several thousands of pounds of fuel, it just flat runs away. Even with spoiler deployed, it will still speed up. It not much fun to be 100 miles from airport decending with spoilers deployed and flaps at position 5, doing S-turns to try to keep speed under 400 kts. Any help would be appreciated.

[garymbuska]

Have found that the throttle slider controls the thrust percentage, but lets the N1 go where ever it feels like. Also found that fuel flow is directly set to match N1. The slider should control the fuel flow. What is happening is when doing an idle decent the aircraft starts speeding up, N1 increases, fuel flow increases, and I'm about the break the throttle slider to get it to slow down. Weight doesn't matter, from max load to just several thousands of pounds of fuel, it just flat runs away. Even with spoiler deployed, it will still speed up. It not much fun to be 100 miles from airport decending with spoilers deployed and flaps at position 5, doing S-turns to try to keep speed under 400 kts. Any help would be appreciated.

where did you download this aircraft from this could be a aircraft cfg problem as that is where you define engine data at below is a entry from a A330-200
[GeneralEngineData]
engine_type=1
Engine.0=0,-30,-5
Engine.1=0, 30,-5
fuel_flow_scalar=0.75
min_throttle_limit=-0.499939

[jet_engine]
thrust_scalar = 1.0

[TurbineEngineData]
fuel_flow_gain=0.002
inlet_area=28.72
rated_N2_rpm=29920
static_thrust=69690.77
afterburner_available=0
reverser_available=1
max_contrail_temperature = -30

hope this helps
This is from a payware aircraft

[EVVFCX]

Hi,

something 'rang' a bell about this so I googled it, old age and couldn't remember.
On the Airbus the N1 is not directly linear with the throttle lever position.

I searched for 'thrust percentage compared to N1' and there was several answers.
I must reinstall my a380 sometime and recheck.

regards

steve