Over-revving the FW 190 D9 1945

[RPS69]

Originally Posted by Woke Up Dead

That definitely makes sense and it's what I do when I'm in planes without auto prop-pitch, I assumed the automatic mechanisms in the German planes would do this more efficiently for me.

In a previous post you were wondering why I keep the engine at maximum power and you seemed to imply that reducing power would somehow generate more speed, I'm guessing you meant prop-pitch, not power?

I mean both. You should achieve the same speed, without the need to overheat the engine. Engine power should be maxed when starting the dive, but after some point, plane dependent, power should be diminished to around 30%, and pitch to a minimum.

[Woke Up Dead]

Originally Posted by RPS69

I mean both. You should achieve the same speed, without the need to overheat the engine. Engine power should be maxed when starting the dive, but after some point, plane dependent, power should be diminished to around 30%, and pitch to a minimum.

Hmm, I don't think I can agree with reducing power to go faster, that seems very illogical. Reducing pitch when you exceed the planes maximum level speed at a given velocity, sure, but power?

[RPS69]

Originally Posted by Woke Up Dead

Hmm, I don't think I can agree with reducing power to go faster, that seems very illogical. Reducing pitch when you exceed the planes maximum level speed at a given velocity, sure, but power?

If the governor is doing his job, and the propeller is feathered at the end of the dive, there is no point on keeping the throttle maxed.
Also, maybe not on the sim, but it is an established procedure to recover from a dive.

[Bolelas]

Unless you are doing a kamikaze atack, you need to stop accelerating, and need also to reduce the speed, or you will not be able to pull up free of damage.
One other thing, dont know if it is implemented on the SIM: On a dive, if you nont need much speed, you still must have at least some 30% of throttle in order to avoid overheating. The objective is to have some fuel burning, and lubricating the sistem. That can happen in a carr to. If someone is only windmilling the prop, high revs, may cause damage. Need fuel on.

[swiss]

Originally Posted by Bolelas

Unless you are doing a kamikaze atack, you need to stop accelerating, and need also to reduce the speed, or you will not be able to pull up free of damage.
One other thing, dont know if it is implemented on the SIM: On a dive, if you nont need much speed, you still must have at least some 30% of throttle in order to avoid overheating. The objective is to have some fuel burning, and lubricating the sistem. That can happen in a carr to. If someone is only windmilling the prop, high revs, may cause damage. Need fuel on.

If the engine was a 2Stroke(where fuel acts as lubrication), maybe.
On a 4 Stroke you can cool the engine by enriching the mixture, the oil pump on the other hand is usually driven by the crankshaft hence still works at high rpm, independent whether the tb is wot or closed.

That is, at least, my understanding - please feel free to go into further detail.

[Bolelas]

I read in some manual about engines: But not 100%sure. I will try to find it out so we can discuss the subject. maybe in a few days when i have time.

But in the spitfire manual it says that dives must have some 30% throttle, i have copy from a game i bought for MS Flight Simulator 9.

[Jumoschwanz]

The injections and carburetors for internal combustion engines have idle circuits, so even when the throttle is turned all the way off the engines will "idle". This puts in the correct amount of fuel for idling, just as the correct amount of fuel-to-air is put in at every rpm and throttle load.

You guys are starting to talk about stuff you know nothing about, which is the norm for internet forums.

Woke screws up and gets an La7 on his butt flying solo, then blows his engine trying to run away, both novice moves, but of course it isn't his fault, it is his aircraft's fault, another novice assumption.

Aces don't ask questions, they either know the answers or they are able to figure them out on their own.