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invernyx / md11-bugs

The official bug tracker for the TFDi Design MD-11
https://tfdidesign.com/md11.php
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[BUG] - ATS hunting in VS mode (MD-AFS-11) #720

Open FreakyD777 opened 10 months ago

FreakyD777 commented 10 months ago

Describe the bug

When climing in VS mode and manual speed select mode (no wind), the ATS system hunts (from 88 N1 down to 77 N1) while trying to maintain the selected speed.

Steps to reproduce

During climb, select VS mode and manual speed select Select a speed that requires less then max throttle setting Observe throttle levers NOTE: GW=360k lb

Expected behaviour

Throttle able to maintain target speed with relatively constant thrust application (no hunting)

Evidence

No response

Simulator

Microsoft Flight Simulator 2020 (MSFS)

Crash

No

Phase of flight

Climb

Pitch

7 degrees

Bank

0

Heading

250

Altitude

Various

Departure

KLAX

Arrival

KLGB

Cruise level

N/A

ZFW

320k lb

CG

27

Fuel

40k lb

Cost index

55

Route

N/A

Location

LAX

Agreement

FreakyD777 commented 4 months ago

This was fixed, but is now back with v0.47

joon44 commented 2 months ago

https://www.youtube.com/watch?v=H9E6RH-jDec In this video same behavior with level change climb