Engine Stops

[GTFreeFlyer]

1 hour ago, Saxman said:

Here's my most recent flight. Please ignore the ugly landing at the end.

I didn't blow my engines, but I've noted a couple things things:

1) Full throttle was hitting +60in MAP.

2) Initially water pressure was fine, however about half way through the flight it fell to zero. I stopped using ADI at that point.

ADI_Issues.trk 9.95 MB · 0 downloads

1. Stay within limits for takeoff, not full throttle.  The air is very thick at low altitudes and you’ll overstress the engine trying to push the prop thru that air with full throttle.  The procedure is 54” maximum for carrier takeoffs, much less for airfields.  Once you climb, and have inflow of air into the prop, there’s less load on it and your MP will drop.  Engine management is key.  
 

2.  I haven’t watched the track file.  I’m assuming based on what I read that you were assuming the water will last forever?  Here’s a screenshot for you…

 

 

 

[Saxman]

40 minutes ago, GTFreeFlyer said:

1. Stay within limits for takeoff, not full throttle.  The air is very thick at low altitudes and you’ll overstress the engine trying to push the prop thru that air with full throttle.  The procedure is 54” maximum for carrier takeoffs, much less for airfields.  Once you climb, and have inflow of air into the prop, there’s less load on it and your MP will drop.  Engine management is key.

I'm not AT takeoff. I'm in the air already IN COMBAT. I'm quite aware of the takeoff power settings.

40 minutes ago, GTFreeFlyer said:

2.  I haven’t watched the track file.  I’m assuming based on what I read that you were assuming the water will last forever?  Here’s a screenshot for you…

Of COURSE NOT. I'm well aware of the 8.5min supply. The 3 minute warning light never comes on, so I know I have water left in the tank.

[GTFreeFlyer]

On 8/15/2025 at 7:49 AM, Doughguy said:

Same with me.
The usual procedure worked fine before. Now each time i land on the carrier the engine dies before i can take off again.
I have no clue why. Temps etc look all good to me.

I spawn in a hot start a/c and rads are open and cylindertemps are little on the lowside.
Oil and intercoolers are closed. Oil pressure seems high. But no matter what i tried the engine died each time.

Attached tracks.

corsair engine shutdown 2.trk 2.93 MB · 1 download corsair engine shutdown 3.trk 3.07 MB · 0 downloads corsair engine shutdown.trk 3.24 MB · 1 download

Had a chance to watch all three tracks.  Nice pattern work and landings   Excellent throttle management on takeoff as well, taking it up to only 50", and not full throttle.

However, you cooked the engine on all three flights with the oil temp gauge pegged to the right.  Open up those oil cooler flaps and you'll be all good.  This behavior changed in the last update, so this is why your usual procedure from before no longer works.

Unrelated to the engine, I noticed you unlocked the tailwheel prior to your takeoff roll.  Only FYI:  The procedures IRL called for locked tailwheels on takeoffs.

Cheers!

8 hours ago, Saxman said:

I'm not AT takeoff. I'm in the air already IN COMBAT. I'm quite aware of the takeoff power settings.

Of COURSE NOT. I'm well aware of the 8.5min supply. The 3 minute warning light never comes on, so I know I have water left in the tank.

Copy all that.  Without having met you, I had no clue if you are brand new to DCS and warbirds, or a 20 year vet.  I did try watching your track file this morning to see if I can help further, but I don't have the necessary mods installed that you had active in your track file, so it won't let me load it.  I'm not familiar with those mods, and as many others will say, try running it without mods to see if you have the same issue.  Mods can be tricky like that.  Cheers.

[Doughguy]

1 hour ago, GTFreeFlyer said:

Had a chance to watch all three tracks.  Nice pattern work and landings   Excellent throttle management on takeoff as well, taking it up to only 50", and not full throttle.

However, you cooked the engine on all three flights with the oil temp gauge pegged to the right.  Open up those oil cooler flaps and you'll be all good.  This behavior changed in the last update, so this is why your usual procedure from before no longer works.

Unrelated to the engine, I noticed you unlocked the tailwheel prior to your takeoff roll.  Only FYI:  The procedures IRL called for locked tailwheels on takeoffs.

Cheers!

Copy all that.  Without having met you, I had no clue if you are brand new to DCS and warbirds, or a 20 year vet.  I did try watching your track file this morning to see if I can help further, but I don't have the necessary mods installed that you had active in your track file, so it won't let me load it.  I'm not familiar with those mods, and as many others will say, try running it without mods to see if you have the same issue.  Mods can be tricky like that.  Cheers.

Yeah, now that i opened them coolers its all good.
Not sure if there was any mentioning in the last changlelog of the oil coolers etc having an effect. Maybe missed it.

The unlocked tailwheel is fine, it doesnt caster around that much tbh especially if you gather speed fast, despite it not being according to specs ^^
 

Edited 10 hours ago by Doughguy

[Saxman]

9 hours ago, GTFreeFlyer said:

Had a chance to watch all three tracks.  Nice pattern work and landings   Excellent throttle management on takeoff as well, taking it up to only 50", and not full throttle.

However, you cooked the engine on all three flights with the oil temp gauge pegged to the right.  Open up those oil cooler flaps and you'll be all good.  This behavior changed in the last update, so this is why your usual procedure from before no longer works.

Unrelated to the engine, I noticed you unlocked the tailwheel prior to your takeoff roll.  Only FYI:  The procedures IRL called for locked tailwheels on takeoffs.

Cheers!

Copy all that.  Without having met you, I had no clue if you are brand new to DCS and warbirds, or a 20 year vet.  I did try watching your track file this morning to see if I can help further, but I don't have the necessary mods installed that you had active in your track file, so it won't let me load it.  I'm not familiar with those mods, and as many others will say, try running it without mods to see if you have the same issue.  Mods can be tricky like that.  Cheers.

I forgot about the mod. Here's another one using built-in aircraft only. Eventually, water pressure just cuts immediately to 0 and the 3-minute warning light is never coming on.

ADI_Issues1.trk

[Edgehog]

On 8/14/2025 at 3:28 AM, Dallenbach said:

I also have problems after this update. The engine stops after approx. 3-5 minutes, even under different conditions (taxiing with take-off on airfield, in flight, and on landing after approx. 5 min. flight) and this while maintaining the specifications. That's why no track file helps, I think.

Same here! Flew in single player, Dogfight a 190 and managed to shoot it down, all the while checking out the gauges, which were in the blue. Did a carrier bolter and then came around again with hook down. Landed. Took off again, engine gauges blue, mixture full rich. Suddenly engine quits and down to the drink! (Rich mixture cools any engine, I know that from years of flying a real life Continental O200 and lycomings of all sizes)

The whole idea of having radial engines was that they were very reliable, even when damaged because no "coolant" was lost. Cylinders could in theory be shot away or perforated by bullets yet the engines would still run, or so the tales go... Same issue with the P47...

With this F4U if you sneeze, you seize! This cannot be historically accurate. Seems like a bug. (Also, in the new update they mention a "WEP" master switch.. where is it? And is it for the water Methanol injection or were they abbreviating "weapons"?)

[Saxman]

So here's a quick flight I did just now doing a Cold Start flight. Ignore my engine cutting out half-way through because I forgot to watch my main fuel gauge, and the Free Flight doesn't give you much of a tank of gas.

Anyway:

It appears that sometimes WEP just...doesn't turn on. I think this is connected to my observation of the water pressure gauge suddenly flatlining. You only see pressure on the gauge if ADI is actually on, and this coincides with my observations of the MAP. There were times where I pushed the throttle full throttle and ADI clearly didn't engage. I received no increased power, and the water gauge sits at 0. Others, if I pushed past the in-game detent it kicked in and the MAP needle jumped.

From what I can tell, if you're at full RPMs you WILL overrev the engine when WEP turns on. This includes at altitudes where WEP is supposed to use 2700RPM.

ADI_Issues2.trk