engine Stop running

[Vinny002]

Hi, guys! I think I found the bug: after about few minutes into the flight the DCS f4u-1 Corsair engine stop running. Here is the logs! Thanks!

dcs.20241001-225441.crash dcs.20241001-225441.dmp dcs.log dcs.log.old dcs.log-20240525-075818.zip dcs.log-20240525-080517.zip dcs.log-20240603-062335.zip dcs.log-20240814-060453.zip dcs.log-20250329-200226.zip dcs.log-20250330-091508.zip dcs.log-20250330-091553.zip dcs.log-20250330-094915.zip dcs.log-20250330-095658.zip dcs.log-20250330-100214.zip debrief.log ins_trace.kml.log ins_trace.kml.log.old real_trace.kml.log real_trace.kml.log.old

[razo+r]

All these logs are useless, they don't show what's happening. Some of these logs are even from 2024, the Corsair didn't even exist back then. What would be usefull would be a track, a .trk file.

But besides that, can you at least describe what's happening?

Are you out of fuel?

Did you mismanage the engine?

Did you overheat the engine? Have you checked the CHT and the other temperature gauges?

[GTFreeFlyer]

Is your behavior any different than the other half dozen (or more) posts in here about the engine quitting?  Read thru those and I’m willing to bet you’ll find the solution.   Everyone overheats their engines, or runs it full throttle and RPM for too long and breaks the engine. 
 

No one can help you without a description of the problem, as much as we want to.  All that I can offer is that you must be flying the wrong plane and posting in the wrong forum if your logs go back to 2024.  

[Vinny002]

Hi, guys! Here is the track.trk file!

LastMissionTrack.trk

Edited November 5 by Vinny002

[razo+r]

13 minutes ago, Vinny002 said:

Hi, guy! Here is the track.trk file!

LastMissionTrack.trk 771.11 kB · 0 downloads

I am not sure what you expect will happen if you leave all your coolers closed.....

This is not a bug, it's a user error.

[Vinny002]

I will check it out!

[OTKing]

I believe I have read everything to read about the F4U engine quitting and have tried all remedies, but still have the same problem. 

During a normal approach i.e. no supercharger use prior to the approach or no manifold pressure above 40 the engine quits when the throttle is retarded to 2400RPM. The engine does not quit immediately, but will quit within a couple of minutes. Perhaps due to oil overheating, but the engine oil cooler will not open past the 1/2-way point. The intercooler also will not open past the halfway point. The halfway point seems to be the default setting. The cockpit handle moves forward to open but immediately returns to about the 1/2-way point even when the temperature is near redline. 

Suggestions?

Thank you, Tom King

 

 

[Art-J]

All three levers are spring loaded so seeing them returning to center position is normal.

What do the cooler flaps indicators show, however? Both should move through full range of motion. Are you sure you're reading them correctly? Up means closed, down means open.

[Saxman]

48 minutes ago, OTKing said:

I believe I have read everything to read about the F4U engine quitting and have tried all remedies, but still have the same problem. 

During a normal approach i.e. no supercharger use prior to the approach or no manifold pressure above 40 the engine quits when the throttle is retarded to 2400RPM. The engine does not quit immediately, but will quit within a couple of minutes. Perhaps due to oil overheating, but the engine oil cooler will not open past the 1/2-way point. The intercooler also will not open past the halfway point. The halfway point seems to be the default setting. The cockpit handle moves forward to open but immediately returns to about the 1/2-way point even when the temperature is near redline. 

Suggestions?

Thank you, Tom King

 

 

For the intercooler, oil cooler, and cowl flaps ignore the physical position of the handle. These aren't positional handles, they're basically switches. You hold them forward or backward until the flaps are where you want them, and then release again. For the cowl flaps watch the flaps themselves to estimate how far open they are. For the oil cooler and intercooler doors there's a position indicator above the levers. All the way up = full closed and all the way down = full open.

The intercooler only needs to be open if you're actually running the supercharger (so either low or high blower, not in neutral). MOST of the time the oil cooler can be left at 50% and you're fine. Watch your cylinder head temperatures, and crack the cowl flaps if you start to get above the max end of the "green" zone.

When landing make sure you're set to:

• Governor: 2300RPM
• Fuel Selector: Reserve
• Supercharger: Neutral
• Mixture: Auto-Rich
• Oil Cooler Flaps: 50% should be acceptable
• Cowl Flaps: Start closed, but open slightly as needed

[Pappy2]

You should try it this way.
And everything will be alright.

Edited Wednesday at 05:11 PM by Pappy2

[OTKing]

Now I understand! Thank you for the help. I did not see the mechanical indicators showing the position of the oil cooler and inter cooler flaps. I thought a forward movement of the levers the flaps would open and the lever would stay in the forward position. At least I learned after 50 engine failures the Corsair glides well, however the survival of a water landing is unlikely.

[RichCotte]

6 hours ago, OTKing said:

Now I understand! Thank you for the help. I did not see the mechanical indicators showing the position of the oil cooler and inter cooler flaps. I thought a forward movement of the levers the flaps would open and the lever would stay in the forward position. At least I learned after 50 engine failures the Corsair glides well, however the survival of a water landing is unlikely.

She definitely does as long as you have the altitude to trade for distance.  I had a failure over the reef south of Orote, can’t remember my altitude, but it was fairly high.  I cleaned up the bird, pulled everything in and pointed the nose about a mile or so off the west end of the peninsula and managed to bring her in for a nice dead stick landing.  

[admiki]

You need oil cooler half way open any time you go below 120-140 knots, regardless of power setting.

Not sure if it's a bug or not, but it is what it is.