System Failures Question

[WildFire]

I was playing around with some system failures and I have random failures always on and I was wondering if anyone has been able to use the procedures in the manual to fix a failure?

 

Like an engine failure immediately starts a fire. The manual states to lower power to idle and see if the fire goes out. Which in my experience it never does. Hence I have to put the fire out and I always lose the engine.

I've never been able to windmill an engine because the engine operate button does not stay up in the IGN position. I have to hold it, and that doesn't seem to work. And with the APU procedure I always have to set the fuel flow to override. There should be a step for that.

Hypoxia is kind of neat, I found it works if you turn your oxygen and cabin pressure off at altitude and wait for it to set in. Although you never actually pass out.

I've also noticed whenever I lose hydraulics there is a step to try to maintain pressure, but it never works.

 

So my question is have any of the emergency steps been implemented? Do emergency procedures basically do nothing? Has anyone found different results?

[FreeFall]

I've never been able to windmill an engine because the engine operate button does not stay up in the IGN position. I have to hold it, and that doesn't seem to work. And with the APU procedure I always have to set the fuel flow to override. There should be a step for that.

 

I don't have random failures active at the moment. But I have trained emergency procedures. For example, on purpose shut down one fully working (no damages or failures or fire) engine and got it up and running nicely with both windmill and APU procedures. All went exactly as described in user manual. Definitely works with v1.1.1.0. Tested with both engines (not simultaneously). Left and right, both started easily. And there is no need to hold the IGN button or use override, IMHO.

 

With APU restart, at first I didn't know how long a time you should MOTOR. With trial and error and watching the gauges, only a couple of seconds I think. Maybe if you fail to start, then MOTOR more?

 

With windmill, did you have enough dive with plenty of speed?

Edited November 24, 2011 by FreeFall

[roob]

Do you MOTOR (~15s) the engines before windmilling? Also, you might need to hold the IGN for a brief period of time. It's not supposed to "stay" in the IGN position.

[WildFire]

I'll give these methods a shot when I give it a go next time. Thanks for the input. APU starts arent a problem and Ive been using those for a long time. Just windmilling, I dived from 18000, at 35 degrees until I just about ripped my wings off, had the Bleed Air off and was holding IGN after about 3000 feet of drop. However I wasn't motoring the engine beforehand. Manual doesn't say so.

1. Place the aircraft in a 30-degree dive.

2. Set the Bleed Air switch to OFF.

3. Set the Crossfeed switch to Crossfeed.

4. Once ITT of affected engine is below 150-c, set both throttles to MAX.

5. Set the Engine Operate switch of the affected engine to IGN.

6. Once engine is operating, move Engine Operate switch back to NORM.

7. Move Crossfeed switch to OFF.

8. Set Bleed Air switch to ON.

If five cant be accomplished what is the point of 6? And in step 6 it doesnt define "operating". What does that mean, 60%? More?

 

My point was shouldn't we be able to set failures in the ME that don't immediately fireball our engine?

And the real main question, has anyone ever been able to fix a failure, hydraulics, engine, flight controls? Like a real failure not like purposely shutting down your engine to get hydro failures or something.

[kylania]

I did a successful windmill restart once, complete with emergency oxygen. :)

 

[FreeFall]

If five cant be accomplished what is the point of 6? And in step 6 it doesnt define "operating". What does that mean, 60%? More?

 

If both throttles are set to MAX (instructions, stage 4.), the restarted engine will eventually quite fast reach considerable RPM if the windmill restart is successfull and there is no damage in the engine/fuel systems.

 

By the way, just windmilled successfully. I did not hold the IGN at all. The "contact" (TM HOTAS Warthog ENG OPER button to IGN) lasted for about 0.5 seconds max or something like that.

[FreeFall]

I did a successful windmill restart once, complete with emergency oxygen. :)

 

:music_whistling:

 

:megalol:

[sobek]

Do you MOTOR (~15s) the engines before windmilling? Also, you might need to hold the IGN for a brief period of time. It's not supposed to "stay" in the IGN position.

 

You don't have to motor it, since there's so much airflow through the engine that fuel can't pool inside.

 

As for the windmill start itself, i've never even had to use the ENG OPER switches, just set the throttle to off and back on again and it would relight if it wasn't substantially damaged.