Board index FlightGear Support Flying

Bug: Engine shutoff in flight

Controlling your aircraft, using the autopilot etc.

Bug: Engine shutoff in flight

Postby Lydiot » Sat Jun 09, 2018 4:54 pm

This one is weird. I tried the following;

Boeing 777 flying level, full thrust (manual, not auto), no flaps, about 250kts.
Turn off left engine to simulate engine failure.

What happens is that the plane appears to hold the amount of thrust even if I then bring it down to zero. I can see the meters of the good engine, the right one, drop to zero. But still I maintain airspeed and altitude. It's essentially "impossible" to land now because as I descend I pick up speed. Airbreaks seem to do nothing to help.

But;

Boeing 777 flying level, full thrust (manual, not auto), no flaps, about 250kts.
Bring thrust to zero.
Turn off left engine to simulate engine failure.

Now I drop altitude like I would expect to.

This seems like a but, and something similar happened to me with the MD-11.

Can someone confirm?

(FG 2017.3.1 / Win10)
Lydiot
 
Posts: 927
Joined: Tue Oct 22, 2013 10:50 pm

Re: Bug: Engine shutoff in flight

Postby legoboyvdlp » Sat Jun 09, 2018 6:10 pm

The 777 uses yasim, which as far as I know doesn't simulate engine shutdown in flight properly.
User avatar
legoboyvdlp
 
Posts: 5721
Joined: Sat Jul 26, 2014 1:28 am
Callsign: YV-LEGO
Version: 2018.3.1
OS: Windows 10 HP

Re: Bug: Engine shutoff in flight

Postby Lydiot » Sat Jun 09, 2018 6:48 pm

Ah. Thank you!
Lydiot
 
Posts: 927
Joined: Tue Oct 22, 2013 10:50 pm


Return to Flying

Who is online

Users browsing this forum: Google [Bot] and 4 guests