correct as-is Engine over heat issue is back

[Lixma 06]

4 minutes ago, NineLine said:

One last time, if you don't want to overheat the engine as it is now, fly it properly to the gauges and listed limits. Why you need to do a run up on the ground I am not sure.

Can you honestly not see why the ground test is relevant to the issue?

The P-51 manual states it is safe to run the engine for at least a minute at 61" 3000rpm at 0mph. And it does no harm to the engine whatsoever.

Our P-51 cannot survive 30 seconds doing this, whether on the ground or in the air.

 

[NineLine]

8 minutes ago, Lixma 06 said:

Can you honestly not see why the ground test is relevant to the issue?

The P-51 manual states it is safe to run the engine for at least a minute at 61" 3000rpm at 0mph. And it does no harm to the engine whatsoever.

Our P-51 cannot survive 30 seconds doing this, whether on the ground or in the air.

 

Look, for the last time, if you want to fly the aircraft properly, do not hold it wide open at 0 mph in the air. AGAIN, even with the new cooling system I doubt you will be able to do this. I cant speak of how to fly it when the new cooling system is done, maybe it wont be as deadly as it is now, why I can tell you right now, today, when you fly the aircraft, holding 61" 3000 RPM at 0 mph in the air will most likely damage the engine beyond repair. This is what I answered to when people started posting tracks and videos of that very thing. 

I can't think of any other ways of saying this now.

[Lixma 06]

10 minutes ago, NineLine said:

Chances are, even with the new cooling system you will not be able to hold the throttle wide open in a stall turn.

But the actual P-51 manual states it's shouldn't be an issue.

If you can harmlessly hold 61" 3000rpm for a minute at zero mph where's the problem with stall-turns? There's nothing special about stall turns, in fact they're a lot less stressful than the above ground test as there's a lot more airflow through the radiator.

[Lixma 06]

35 minutes ago, NineLine said:

Look, for the last time, if you want to fly the aircraft properly, do not hold it wide open at 0 mph in the air.....why I can tell you right now, today, when you fly the aircraft, holding 61" 3000 RPM at 0 mph in the air will most likely damage the engine beyond repair. This is what I answered to when people started posting tracks and videos of that very thing. I can't think of any other ways of saying this now.

With respect NineLine - We all know this. Everyone in this thread, and online, knows how to avoid breaking the P-51's engine. There's no mystery, it's common knowledge.

But having the knowledge to fly 'around' an issue does not mean there's no longer an issue. Nor does flying around an issue mean you're flying 'properly'.

The issue is our P-51 has an engine/cooling system that goes from OK to CHERNOBYL within seconds; behaviour that's contradicted by the aircraft's own manual.

Edited February 17, 2022 by Lixma 06

[NineLine]

And again, nothing will change or be addressed until the new cooling system is in place. 

And the only place it really contradicts the manual is deleading, all other aspects you can fly fine with some attention to your gauges.

AGAIN, and AGAIN, maybe things will be different on that end for the new cooling system, but I see as full military in a stall turn as engine abuse, and have been told it is for sure an over heated engine, will the new cooling system make that less deadly AGAIN AND AGAIN, I don't know until we see it, I don't know when we will see it. So to fly the aircraft as it is now, follow what I said, and don't worry about deleading your engine, it isn't modeled. 

4 minutes ago, Lixma 06 said:

Everyone in this thread, and online, knows how to avoid breaking the P-51's engine

That is far from true, this thread is highly indicative of that.

[Lixma 06]

38 minutes ago, NineLine said:

And the only place it really contradicts the manual is deleading....

How many contradictions does it take? What difference does it make if they are de-leading the spark plugs or just burning off fuel for fun?

Do you honestly not see the contradiction between the real P-51 sat happily running 61" 3000rpm at 0mph for at least a minute without any prospect of damage, and our P-51 overheating and exploding within 30 seconds under the same conditions? 

[grafspee]

If it can hold max power for 1 continous minute on the ground it will hold on at slow speed to. Unless it become more realistic then real plane.

[NineLine]

2 hours ago, Lixma 06 said:

just burning off fuel for fun?

Where in the manual does it say that is an option?

Look guys, I have answered you guys the best I can, there is no point in beating this dead horse until the new cooling system is in. If you need to burn fuel for fun, pull the throttle back before it blows. I am sorry you don't agree with actual pilots on stall turns, maybe you will be able to abuse the engine more in the future. As it stands, it is correct as is, and we can revisit when the new cooling system is added.