[REPORTED]F-5 Engine Behavior

f5_engine_behavior_bug.miz

f5_engine_bug.trk

Edit: I realized the track attachment was INOP

Engine thrust, FF, ITT, nozzle are all affected by most recent minimum or maximum stabilized throttle position.

This issue has been present since DCS:W 1.5 and first became apparent during formation rejoin. Pulling IDLE after a MAX take-off to prevent overshoot on rejoin, then resetting Ng to match lead would yield reduced thrust vs the lead aircraft who pulled from MAX to cruise power (i.e. 90% Ng). In many circumstances, the wingman could not catch up using MIL power, while the flight lead was still set to ~90% Ng.

In my view of the submitted track, the engines start at either parameter, with similar NG but different FF, ITT and Nozzle Position on the left vs. right engine.

These photos are not from the test track, but show identical behavior at higher altitude and I believe the Dec 2018 version of DCS Open Beta.

IDLE power

Resumed cruise from IDLE

MAX power

Resumed cruise from MAX

Further, this behavior has appeared for me regardless of ground hot/cold or air start, and regardless of stores load/configuration.

Wow, I'm surprised how flawed this moduel actually is!! What the hell?? :mad:

I was able to fully reproduce the bug. Track attached.

@Coltrogue: nice catch!

F-5 engines oddities.trk

I sent a PM to Nineline about this, maybe they didn't see it.

Any news?

Another critical bug. This module needs attention.

Is there anything I can help investigate regarding expected behavior, or is it a back end-investigation about possible cause of sim-behavior?