Just after tale off, my engine stop / crash

[Cthulhus]

Hello here :)

 

Just got the nice BF109K-4 and I star learning it. After a cold and dark start and just after take off, mu engine suddenly stop/crash.

 

How can I prevent that ?

 

Thanks

[saburo_cz]

If your engine ran with manifold pressure above 1,45ATA without MW50 On, it could happen.

Or, did you set the automatic pitch control to On?

[Cthulhus]

yes pitch control was on

[shagrat]

Manifold pressure too High, for too long as per the post above or you may have rocked the throttle back / forward too quickly. Bf.109 has a electric pitch control, that needs a bit to adjust prop pitch...

[Cthulhus]

Ok thanks, I'll make some more training !

[NeilWillis]

I would double check the pitch control before take off. The thing to do is add to your check list something like switching off the pitch control, changing the pitch using the manual controls, then switching the pitch control back to automatic.

 

I can pretty much guarantee the issue is down to over revving the engine if it happens so soon after take off.

 

If the engine is overheating, it usually takes a lot longer for the engine to seize. However, by adding a radiator control setting check to your check list will also eliminate that as a cause.

 

So, when you start the engine, make sure the rads are set to fully open, and leave them there until post take off, when the increased air flow will reduce the chances of cooking the engine. Once airborne you can switch to automatic control with confidence, and only need manual control if the engine instruments start reading outside the normal operating range.

 

Remember that these more sophisticated simulations need more management, and being methodical in your approach will definitely help.

[Cthulhus]

Thanks NeilWillis !

[WildBillKelsoe]

Takeoff at lower ata and ensure that your radiator flaps are open and do the RPM checks for takeoff and check oil temperature and coolant temperatures for a period of two minutes.

[DieHard]

I would double check the pitch control before take off. The thing to do is add to your check list something like switching off the pitch control, changing the pitch using the manual controls, then switching the pitch control back to automatic.

 

I can pretty much guarantee the issue is down to over revving the engine if it happens so soon after take off.

 

If the engine is overheating, it usually takes a lot longer for the engine to seize. However, by adding a radiator control setting check to your check list will also eliminate that as a cause.

 

So, when you start the engine, make sure the rads are set to fully open, and leave them there until post take off, when the increased air flow will reduce the chances of cooking the engine. Once airborne you can switch to automatic control with confidence, and only need manual control if the engine instruments start reading outside the normal operating range.

 

Remember that these more sophisticated simulations need more management, and being methodical in your approach will definitely help.

 

First sentence >>> set governor to manual; prop pitch to 11:30 o'clock . After take-off switch to auto governor, then gear up, then outer running lights off.

[BuzzU]

Make sure to warm up the engine before taking off.

[WildBillKelsoe]

and do a run up before takeoff for two minutes

[LeCuvier]

I have, for the first time, experienced an engine overheat and failure just after take-off today in 2.1 in a mission with hot start.

It happened twice in a row and when it happened for the second time I realized that the radiator control was in the "Zu" (= closed or Off) position. Normally in a hot start mission it should be in the "Auto" position when the mission starts. I have never seen this failure before. Seems that the default switch positions at mission start are not well managed by the software.

[WildBillKelsoe]

A very good tactic I started to use is to run up the engine, to 2400 RPM with auto pitch control. After takeoff, I circle the airfield 2 times doing a pattern to check if the engine will hold. Also, I keep radiators open (AUF). The airfield idea is good for those seizures...

[Reflected]

Sounds like you took of with your rads closed.

 

By the way, according to the manual, should you be taking off with manual or automatic prop pitch?

[Anatoli-Kagari9]

Probably forgot to set prop pitch to 12:00 manual for takeoff and then as you get airborne, switch to auto....