#3705358 - 12/24/12 02:37 AM
Re: Repaired airplane not fully repaired?
[Re: Frederf]
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Joined: Nov 2007
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EinsteinEP
Just a Noob
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Just a Noob
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Tucson, AZ
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When you say that repairing doesn't "allow" the engine to be restarted, what's the specific failure? Either engine or just one? When the APU starts, does it settle at 100% RPM, nominal EGT? Repeatable? Track?
Pressing and holding the takeoff trim button will center the control stick, but if there was any yaw trim at all via the SAS yaw trim knob, the TO Trim light will never illuminate. After pressing and holding the button (and being sure that the stick trim is centered), give the yaw trim knob a tweak either direction and see if that does the trick.
Shoot to Kill. Play to Have Fun.
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#3705389 - 12/24/12 04:03 AM
Re: Repaired airplane not fully repaired?
[Re: Frederf]
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Joined: Oct 2009
Posts: 1,599
Frederf
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RPM increases normally in start cycle but no light-off. It seems like no fuel is getting to the engine. It was just the engine that suffered the fire/extinguisher/repair. APU and righty start and stop without a hitch.
I'll see if I can set up a trigger for an engine fire in the ME so I can repeat it more reliably.
It might have been the yaw knob. Clicking the knob is a shortcut to re centering it perfectly. I swear I've had this problem when I've never touched the yaw bias knob though.
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Recreated a situation of right engine fire. Pulled handle, dispensed extinguisher, landed, centered extinguisher, centered handle, repaired.
Right engine was unable to start normally. With ignitor cbs pulled was about 40C EGT. Pushed in it got to about 250C-270C climbing and then failed down to 40C again. I managed once to reignite right using override fuel, max power on left engine for crossbleed, and gentle throttle up. Despite this the engines were clearly very different in profile even after returning their controls to normal.
I didn't compare but I think the normal fuel flow spike at start is more than the tiny amount I was getting. It wasn't zero.
Anyway, feel free to take control after fullstop and see if you can get good ol' #2 going again. Maybe some voodoo ritual depending on the order of fire handle in, extinguisher center, repair will do it.
Last edited by Frederf; 12/24/12 05:03 AM.
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#3705404 - 12/24/12 04:34 AM
Re: Repaired airplane not fully repaired?
[Re: Frederf]
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Joined: Nov 2007
Posts: 3,674
EinsteinEP
Just a Noob
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Just a Noob
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Posts: 3,674
Tucson, AZ
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I've heard of folks having issues getting a previously damaged engine to restart - never experienced it myself, so I can't say I know whether it's a genuine bug or if there's some other switch out of kilter. If you can reproduce, a track would be golden.
Shoot to Kill. Play to Have Fun.
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#3705411 - 12/24/12 04:54 AM
Re: Repaired airplane not fully repaired?
[Re: Frederf]
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Joined: Jan 2001
Posts: 24,314
BeachAV8R
Lifer
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Lifer
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KCLT
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In the real world..the first thing we'd say is de-power the airplane completely (no AC or DC power).. Things seem to magically fix themselves when you remove power (all the fail open or closed valves sort of reset to their "normal" settings..) I have no idea if that would really help in DCS sims, but it is surprisingly effective in the real world.. BeachAV8R
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#3705454 - 12/24/12 09:49 AM
Re: Repaired airplane not fully repaired?
[Re: Frederf]
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Joined: Aug 2002
Posts: 410
Dachs
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Denmark
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I just had the exact same problem yesterday. I thought it might be because I didn't reset the firehandle and extinguisher before doing the repairing, but it's not something I have checked. When did you reset the fire handles, before or after repair?
Fortes Fortuna Juvat
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#3707016 - 12/27/12 04:03 AM
Re: Repaired airplane not fully repaired?
[Re: Frederf]
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Joined: Nov 2007
Posts: 3,674
EinsteinEP
Just a Noob
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Just a Noob
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Tucson, AZ
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Interesting track, 'derf.
Engine RPM picks up, so there's bleed air to the engine and the air turbine is working - in fact, the system gets the engine to 25% RPM, which should be more than enough for light-off and self-start. Engine EGT picks up, too, so there *IS* fuel and the ignitors are working. There's just some hangup at 30% RPM.
I tried to restart this several different ways, including complete shut down (no running APU during repair), manual start, etc., but that engine has some sort of hang up at 30%.
Smells like a bug to me.
Shoot to Kill. Play to Have Fun.
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#3708648 - 12/30/12 05:58 AM
Re: Repaired airplane not fully repaired?
[Re: Frederf]
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Joined: Jun 2001
Posts: 10,790
Weasel_Keeper
SimHQ Forums Manager
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SimHQ Forums Manager
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Fort Wayne, Indiana, USA
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Football valve is sticking!!!
Just kidding.
Either a bug...or engine fire damaged the engine beyond repair. This is a simulation, but in RL an engine fire IFE would require at least a day to troubleshoot and repair...maybe it's simulating like it should be. Nobody's going to repair an engine within a few minutes after the Fire Pull Handles and Fire Ext has been used. Weird that you can get EGT, but a hung start.
Eno, regarding your tip to motor the engines to cause another fire. Motoring the engines doesn't introduce fuel or spark into the engines unless you move the throttles up to idle. Motoring is generally used to cool the engines because all it does (with throttles in cutoff) is spin the fans with bleed air from the APU. It's also used to put out (blow out) an engine fire after you cut fuel to it, or cool the engine after an overtemp.
"Cave Putorium!" SoWW #2485 Beware the Weasel
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#3827676 - 08/26/13 10:56 PM
Re: Repaired airplane not fully repaired?
[Re: Frederf]
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Joined: Oct 2009
Posts: 1,599
Frederf
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Exodus
by RedOneAlpha. 04/18/24 05:46 PM
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