F4U Takeoff problem

[EJGr.Ost_Caspar]

..and they were made in times, where Corsairs FMs where still quite optimistic.
And maybe they should be some challenge indeed - if you learn how to start from a CVE, then you will do it from a CV with a smile.

However, further tips for take of with F4U from CVE:

1. Use tailwheel lock so you don't have to use much rudder in the beginning of the acceleration

2. Push stick forward to early lift the tail (keep calm and sensilbe, when it happens)

3. Open flaps shortly before leaving the deck and maybe open them to landing config (ground lift effect will happen over the water, at the deck the flaps only slow you down)

4. Its normal that you sink lower after leaving the deck, so don't over-react trying to pulling too high - at that point you need speed more than height (paradox, I know)

5. Close radiators and cockpit and set mixture to 120% - every little bit can help!

[The Stalker]

Thanks, just one last question since we're at it. What exactly does the 120% mixture setting do?

I always thought it simply pumped more fuel that wasn't used but cooled the engine. Does it also develop more power? When should I use it generally?

[JtD]

Originally Posted by The Stalker

Thanks, just one last question since we're at it. What exactly does the 120% mixture setting do?

I always thought it simply pumped more fuel that wasn't used but cooled the engine. Does it also develop more power? When should I use it generally?

To my knowledge, it only cools. It doesn't appear to increase power output or fuel consumption. I use it to run the engine cool at sea level.

Originally Posted by JtD

To my knowledge, it only cools. It doesn't appear to increase power output or fuel consumption. I use it to run the engine cool at sea level.

It works like the Fw190 erhöhte notleistung system in that it uses additional fuel evaporation to cool the compressed air in the intake manifold to allow a current unstable, or even higher, boost pressure. (Water -along with its required antifreeze - works better as it doesn't upset the mixture ratio.) The Germans found that simply spraying MW50 into the supercharger, with no change in throttle or supercharger settings, was good for a 4% increase in power while simultaneously reducing temps.

[JtD]

It was a reference to in game mechanics, not real life. In real life it does far more and has a much bigger impact than in game.

But to add to your real life info, the anti-freeze component is combustible so an WM injection does change the mixture ratio, even if not to the extend added fuel does...we could go on, but this is about F4U take offs in game.

Fw 190 erhöhte Notleistung does evaporate fuel in the intake manifold. The aircraft used direct fuel injection, and to my knowledge, fuel did not mix with air until it entered the cylinder. In fact, all erhöhte Notleistung did was to release pressure from a control chamber in the Kommandogerät so part of it were tricked into believing that there was less boost in the engine than there actually was. Fuel injection was stepped up to maintain mixture...again we could go on...

[OREL_Erichos]

Hi,
I tested take off today and with 100% fuel, 120% mixture, settings trims - rudder to the right and elevator up, I was able take off with F4U-1A two times from three attempts. But this carrier is very short for Corsair, that`s true, with bombs and rockets hmm ... problem.

Originally Posted by JtD

It was a reference to in game mechanics, not real life. In real life it does far more and has a much bigger impact than in game.

But to add to your real life info, the anti-freeze component is combustible so an WM injection does change the mixture ratio, even if not to the extend added fuel does...we could go on, but this is about F4U take offs in game.

Fw 190 erhöhte Notleistung does evaporate fuel in the intake manifold. The aircraft used direct fuel injection, and to my knowledge, fuel did not mix with air until it entered the cylinder. In fact, all erhöhte Notleistung did was to release pressure from a control chamber in the Kommandogerät so part of it were tricked into believing that there was less boost in the engine than there actually was. Fuel injection was stepped up to maintain mixture...again we could go on...

I not sure I follow the " ... erhöhte Notleistung does evaporate fuel in the intake manifold" to " ... direct fuel injection ... " and then back to " ... all erhöhte Notleistung did ... " ... (was to trick the Kommandogerät) into believing that there was less boost (you mean more, right?) ... " implying, maybe, that the cylinder injectors were adding the additional fuel?.

The erhöhte Notleistung system injected fuel through a single dedicated injector into the left air intake upstream of the supercharger at the rate of about 14.5 gallons per hour. Total fuel consumption could be 185 gph (full throttle can be 146 gph). I could ... well ... lol

Yeah, I get the game/reality point. I should try harder to focus on the game part. The game tries really, really hard

[Bolelas]

Dont know if this was mentioned here, but, on the take-off run on the carrier, and little after, never use ailerons, as any change on the wings will make them stall. We have to compensate only with rudder. After gaining speed we can go back to ailerons.

[Igo kyu]

Originally Posted by EJGr.Ost_Caspar

3. Open flaps shortly before leaving the deck and maybe open them to landing config (ground lift effect will happen over the water, at the deck the flaps only slow you down)

That's not right.

That's not physics.

It may be how to make a flight sim, but it isn't what would happen in the real world. In the real world, you would get surface effect over any non-porous surface (i.e. not a net with air below it, but you wouldn't try to land on that anyway).

[majorfailure]

Originally Posted by Igo kyu

That's not right.

That's not physics.

It may be how to make a flight sim, but it isn't what would happen in the real world. In the real world, you would get surface effect over any non-porous surface (i.e. not a net with air below it, but you wouldn't try to land on that anyway).

I think flaps do generate lift on the carrier deck, too. But they also create drag -slowing you down a little. As you dont need lift on the carrier deck, you don't get any advantage from extending flaps early. As you can't extend them in an instant you need to compromise between drag and lift flaps create - and extend them on the way to the deck edge.