Not enough engine power to take off in the Il2

[S-Array 03]

I can start the engine and taxi just fine, once in position I tried to take off like any other planes. However this one won't go past 200kph no matter the mixture throttle flap settings.
I didn't mess around yet with the prop pitch, engine rpm or radiators, reckon it could be one of those?

I've had the same problem with the stuka and the La5n.

[-OrLoK- Слава Україн]

are you carrying a heavy load armaments wise?

Max fuel?

weight is an issue.

Oh and rpm should be quite high for take off imho.

[S-Array 03]

full brakes untill the planes gets enough rpms to move even while I'm braking, so I doubt that's the problem.
While I can see weight being an issues I doubt it would completely prevent me from taking off since I can do it in SP with engine autocontrol.
It must be one of the engine setting but I'm not sure which one.

[Disarray]

The issue isn't weight, you aren't setting up properly. No combination of guns, ammo, bombs and fuel will prevent the IL-2 from taking off. To take off in an IL-2 you need to do the following after lining up on the runway:

Keep the flaps up. The flaps on the IL-2, and most other Soviet planes for that matter, are intended to be used while landing. If you deploy them for takeoff the induced drag may prevent you from getting the kind of speed you need for the run.

Set the RPM limiter to 100%. This will futz with the prop pitch and allow you to get better manifold pressure out of the engine. This cannot be maintained for very long so once you get up in the air back the RPM limiter down to 90%.

Open the throttle fully. As mentioned above the maximum RPM limit will allow for higher manifold pressures. This is how you get them to happen.

Your nose will swing to the side so counter with rudder, but you should be expecting that in just about every plane.

Don't bother with holding the breaks and letting the engine 'spool up'. These are supercharged piston engines. There is no turbo lag like you get in a P-38 or a jet. When you add throttle the resultant engine power increase will be nearly instantaneous.

[S-Array 03]

Thanks I'll try that, would this also apply to the stuka and the La?

[Disarray]

The power settings will vary from plane to plane but yes. To get any plane off the ground you can't go far wrong with maximum power. In the case of the Stuka, you will need to back the throttle and RPMs off to 85% after takeoff. You can maintain that power setting for 30 minutes and is very good for climbing. Once you are don climbing or you near the 30 minute mark, whichever comes first, you will need to back off the throttle and RPM to 75%. This is true for 111 and 88 as well.

In the case of the La-5 you can set 100% RPM and 100% throttle for as long as you can keep the engine cool and have fuel in the tank. The simplest way to keep the La-5 cool is to open the intake flaps and the oil rad 100% and adjusting the outlet flaps as needed, the more open they are the more cooling you get. The intake and oil rad are built in such a way as to not induce any extra drag by having them fully open but the outlets will slow you down when opened a lot. To get max power out of the La-5 you need to hit the boost button. I don't know what it is off hand but you can look it up in the engine controls section of the key binds. If you are talking about the La-5 FN the settings are a bit different and I can't remember exactly what they are off hand. But you are in luck as you can open your map page by hitting the letter O and going to the specifications tab and it will have all the engine settings for the various modes for the plane you are in. You may have to hunt down the various gauges on the dash board this way, and that can be difficult if you can't read the language they are written in but there are screenshots online that have them labled for you.

[Emme]

Maybe the engine that's not on temp?

[GraveDigger]

Originally posted by Disarray:

The power settings will vary from plane to plane but yes. To get any plane off the ground you can't go far wrong with maximum power. In the case of the Stuka, you will need to back the throttle and RPMs off to 85% after takeoff. You can maintain that power setting for 30 minutes and is very good for climbing. Once you are don climbing or you near the 30 minute mark, whichever comes first, you will need to back off the throttle and RPM to 75%. This is true for 111 and 88 as well.

In the case of the La-5 you can set 100% RPM and 100% throttle for as long as you can keep the engine cool and have fuel in the tank. The simplest way to keep the La-5 cool is to open the intake flaps and the oil rad 100% and adjusting the outlet flaps as needed, the more open they are the more cooling you get. The intake and oil rad are built in such a way as to not induce any extra drag by having them fully open but the outlets will slow you down when opened a lot. To get max power out of the La-5 you need to hit the boost button. I don't know what it is off hand but you can look it up in the engine controls section of the key binds. If you are talking about the La-5 FN the settings are a bit different and I can't remember exactly what they are off hand. But you are in luck as you can open your map page by hitting the letter O and going to the specifications tab and it will have all the engine settings for the various modes for the plane you are in. You may have to hunt down the various gauges on the dash board this way, and that can be difficult if you can't read the language they are written in but there are screenshots online that have them labled for you.

Quick question. When I'm near the 30 minute mark and reduce to 75% how long until I can return to 85?

[Disarray]

I think the recharge time is one to one. So for every minute you aren't running climb power you get a minute back.

[GraveDigger]

Originally posted by Disarray:

I think the recharge time is one to one. So for every minute you aren't running climb power you get a minute back.

Off topic: I had for the longest time the same profile picture. It was from the news to Left 4 Dead 2, wasn't it? :D

[R9]

ez

[smee_ger_ac]

Originally posted by S-Array 03:

I can start the engine and taxi just fine, once in position I tried to take off like any other planes. However this one won't go past 200kph no matter the mixture throttle flap settings.

The youtube channel The Air Combat Tutorial Library https://www.youtube.com/user/RequiemBoS/search?query=il-2+learn+to+fly is a good source if you want to start with a new plane.
Also set your trimm correctly, most planes start with a nose down trim so you don't get of the ground in an attacker or bomber. They changed the trim indicator a few patches ago so - (negative) % is now nose UP.
Try to take as less fuel with you as you need. As a thumb rule you can say per engine (at least for german planes) Throttle climb settings ~420L/h, max continues 300L/h.
So if your mission last only 30 min. you are fine with 300L if you use cruise setting at flight.