LAGG-3

[LLv32_kankkis]

What RPM and MP is best for LAGG3 cruise? MP about 1000mm Hg but how is RPM?

[Trooper117]

I'd say about 1700 rpm on normal operation. Take a look here http://forum.il2sturmovik.com/topic/10268-chucks-aircraft-guide/

[LLv32_kankkis]

Yeah, but it feels really low when flying, throttle yoke is full and the RPM yoke is allmost  zero.

If i put my RPM to 1700, my MP is max 900?

Edited October 23, 2014 by kankkis

[Trooper117]

Do you have your mixture leaned out correctly?

Have you got your supercharger on the correct setting?

Are you using the RPM lever or just the throttle to adjust the RPM?

[BeastyBaiter]

Don't over think it.

 

Mixture: Full (doesn't seem to be modeled but I haven't played in a few days, PC toasted itself)

RPM: 2500 is comfortable

Throttle: 80% for cruise

Radiators: adjust as needed to stay between 40C and 100C, I prefer to keep the engine on the cool side for cruising so I can run sealed at full power for a minute or two in combat.

Supercharger: 2nd stage at 1500m

[LLv32_kankkis]

Low level flying, so mix is rich and SC is on gear 1.

I try both, if i put MP to 1000 with rpm lever my RPM is 2100-2200.

Sniped, yeah, 1700rpm is too low, even impossible with 1000mp.

Edited October 23, 2014 by kankkis

[6./ZG26_5tuka]

I use 2400 RPM and 90-95% throttle for cruising. Seems best power / fuel consumption compromise to me, though I have no historical figures of the russian planes.

 

As russian planes usually can be flwon with full open throttle only depending on engine temperature you may try to find oyur own optimal setting.

Edited October 23, 2014 by [Jg26]5tuka

[LLv32_kankkis]

yeah about 2500rpm feels good.

[Finkeren]

1700 RPM is way too low. Somewhere between 2300-2500 will be all right for cruise and then regulate with throttle to the desired air speed.

[Y-29.Silky]

You know what I like to do?

Turn on the HUD so you can see your prop pitch %, etc, etc.. Put everything at 100, and slowly lower your throttle/pitch down until you see "continuous power", and then take note of your gauges. Of course, this takes away immersion initally, but it really teaches you the limits of your aircraft, then you can just turn the HUD off. I noticed with Chucks aircraft guide, I can push the Pe-2 way stronger than what he has on his guide, they're probably a little dated.

Edited October 23, 2014 by Silky

[bivalov]

What RPM and MP is best for LAGG3 cruise? MP about 1000mm Hg but how is RPM?

you can use just nominal power for M-105PA = 2700 rpm and 910 mm hg (280 kg/h at 1000 meters...870/850 mm hg for 3000/5000).

 

or lower settings, like 2300/800 (170/1000...710/680) and 1900/680 (115/1000...600/600).

[GP*]

Do the same rules apply for the Yak and La-5? I've always flown Luftwaffe aircraft in other sims but I'm really enjoying the VVS stuff so far...I'm a little burned out on 109s and 190s (as much as I love them). 1700 has seemed excessively low, so I've been using 2200 for RPM and throttle to maintain either a decent cruise airspeed or tactical airspeed.

 

Anything I should be doing differently?

[LLv32_kankkis]

What i have seen yeasterday, if you have rads open, you cannot torch your engine in level flight. So you can fly with 100% rpm and MP.

[bivalov]

Do the same rules apply for the Yak and .........?

....................

1700 has seemed excessively low, so I've been using 2200 for RPM and throttle to maintain either a decent cruise airspeed or tactical airspeed.

Yak-1 and LaGG-3 were equipped with M-105PF.

 

so, yes, you can use these numbers and for LaGG-3.

 

plus, for example, you can use 2500 revs/870 mm hg (770/750 at 3000/5000) ~ 200-210 kg/h - all these numbers from official sources, and you can trust them.

 

La-5

well, if you interested, here several real cruise settings for m-82 -

 

2300/850-900

 

2200/730 (500 meters/4 km/6 km on 2nd stage of SP) - 282/271/310 kg/h

 

2100/800

1850/650-700

 

and most economical settings - 1600/400-500.

[LLv34_Flanker]

S!

 

 I always use 2600rpm on Yak/LaGG and 2300rpm on La-5.

[TCSEllis]

yeah 1700 rpm is quite low It's like 9% prop pitch, It's a good setting for approaching to land for me anyway.

[LLv32_kankkis]

When you wanna slowdown speed, what is right way to do it, do you reduce RPM or throttle, or both? both is not right way because LAGG3 you need two hand to operate simultaneously both same time.

Edited October 24, 2014 by kankkis

[Matt]

First reduce throttle, then reduce RPM. If you want to lose speed quickly, just reduce throttle and keep (or increase to) full RPM.

[LLv34_Flanker]

S!

 

 I slow down by cutting throttle, setting RPM/prop pitch to 100% and closing coolers to prevent overcooling. Works.

[Finkeren]

As well it should. You're practically removing all thrust and having the prop blades in the finest pitch angle posible, effectively acting as an air brake.

Edited October 24, 2014 by Finkeren

[Trooper117]

I thought the Lagg had a CSP not a variable prop?

[Finkeren]

I thought the Lagg had a CSP not a variable prop?

It does. But idling engine + high RPM-setting still gives you finest pitch that produce next to zero thrust and makes the blades act as an air brake.

[LLv32_kankkis]

These was a good hints for CEM starter Thanks all.