Pe-2 prop feathering and He 111 mixture control

[tomgor]

I don't know the real Pe-2, but I am pretty sure its powerplants were equipped with prop feathering system. At the moment one can not feather props in IL-2 BoS Pe-2 - this feature does not work, in opposition to He-111, in case of which it works fine.

 

On the other way, in IL2 BoS Pe-2 mixture control works fine, but not at all in the He-111.

 

I guess, those two above are just bugs, needing to be corrected. 

Edited October 14, 2014 by tomgor

[LukeFF]

The He 111 has automatic mixture control.

[tomgor]

Thank you. I have suspected that....  But am I wrong when I suspect that in real airplane the real control had 2 position: (1) FUEL CUTOFF, (2) AUTO-MIXTURE?

 

How about Pe-2 prop feathering? I don;t know the real aircraft and don't have any flight manual of it, but I hardly believe it was not equipped with at least manual prop feathering system, as other multiengine aircraft during WW2 (and today as well).

[=J13=xarann]

All types of propellers, which were installed on the Pe-2:

type                         range of the blades      minimum angle of the blades
VISH-105D-70                 30 degrees                        18 degrees
AV 5LV-139                     26 degrees                          22 degrees
AV-5L-D-9                      19.5 degrees                    16.5 degrees
WISH-61B                       35 degrees                        22 degrees

and none of them has the function of prop feathering

Edited October 15, 2014 by =J13=xarann

[tomgor]

Many thanks. I am a bit surprised. When Pe-2 was being designed, a variable-pitch (and even constant speed), feathering prop had been already known for a few years - please see:

https://www.asme.org/getmedia/7274dc51-263e-4e53-9bbf-8889b61065cb/149-Hydromatic-Propeller.aspx

They were installed on Boeing 247 and DC-2/DC-3 aircraft to mention just a few, well before WW2. And they have been installed on practically all western military multiengine aircraft used during WW2, as far as I know. I thought it was the same story with Soviet multiengine aircraft of that time....

 

My condolences to families of those Pe-2 airmen who perished in result of such important safety feature missing on the Pe-2. If it is indeed the case....

 

Regarding He-111, it seems  to me that we have a bug right now, because manipulating mixture control has no effect at all.

Mixture control should allow player to select one of two positions: FUEL CUTOFF and AUTO-MIXTURE, with resulting actions.

Edited October 15, 2014 by tomgor

[tomgor]

By resulting actions I mean at least:

 

       1. no fuel flow (when is FUEL CUTOFF selected), and

       

       2. fuel flow (and therefore - mixture) controlled automatically by automatically regulated by a tapered needle valve (with use of aneroid bellows), or whatever it was called in He-111 (when AUTO-MIXTURE is selected)  

 

More realistically in general (for P&W radial engines), but not neccessarily for He-111:

1. Idle-cutoff position, where all fuel flow is cutoff to the metered side of the fuel chamber, thereby closing the servo valve, stopping the engine.
2. Auto-Lean position, where fuel flows through the enrichment and lean fuel metering jets. This is sometimes called the cruise position, as this is the most-used position while in-flight.
3. Auto-Rich position, where the fuel flows through the rich, enrichment and lean fuel metering jets. This position is used for take off and landing.
4. War Emergency position (military carburetors only), where fuel flows through the lean and rich fuel metering jets only, but only when there is pressure in the Anti-detonation injection (ADI) system.

[Czar66]

@tomgor's last post. Anyone keen to little things in games for realistic experience, hence favoring simulators over all, these are very welcoming additions to the "expert difficulty" players on BoS.

BoS sure is needing some more love at this very department.

Good Landings 

Edited October 16, 2014 by FeliusCzar

[VR-DriftaholiC]

While on the subject of feathering it would be great if we got a seperate keybinding for the feathering of each prop instead of having to use engine controls on/off and only one hotkey. 

[tomgor]

Fully agree. At low altitudes and airspeeds one needs to act quickly in case of engine fire/failure. No time for playing with keybord, so to speek, a dedicated keybinding for critical engine controls like prop feather and fuel cut-off would be much more desired.

[tomgor]

@tomgor's last post. Anyone keen to little things in games for realistic experience, hence favoring simulators over all, these are very welcoming additions to the "expert difficulty" players on BoS.

 

BoS sure is needing some more love at this very department.

 

Good Landings 

 

Absolutely agree.

 

I would add however, that If I want to play a PC airplane simulator I am gonna use Aerowinx PSX, or one of the DCS aircraft like A-10C. But for fun, I like that sweet point the IL2 Sturmovik BoS and RoF represent - not a totally overwhelming procedure trainer, but no shortcuts as well when it comes to the most fundamental and basic stuff related to airplane flying. I would say, a good analogy in the FPS game world would be Insurgency vs. Arma II/III.

 

Stay safe out there 

Fully agree. At low altitudes and airspeeds one needs to act quickly in case of engine fire/failure. No time for playing with keybord, so to speek, a dedicated keybinding for critical engine controls like prop feather and fuel cut-off would be much more desired.

 

I meant - for each engine separately, of course, as driftaholic has suggested.

 

Edited October 16, 2014 by tomgor

[Czar66]

 

 

Absolutely agree.   I would add however, that If I want to play a PC airplane simulator I am gonna use Aerowinx PSX, or one of the DCS aircraft like A-10C. But for fun, I like that sweet point the IL2 Sturmovik BoS and RoF represent - not a totally overwhelming procedure trainer, but no shortcuts as well when it comes to the most fundamental and basic stuff related to airplane flying. I would say, a good analogy in the FPS game world would be Insurgency vs. Arma II/III.   Stay safe out there 

 

 

Totally agree. I got my DCS: A-10C  ready to go anytime Edge comes out. But it is always nice to have the Il-2 Sturmovik title on the side and updated with this great engine; simple, objective, immersive, efficient, especially been my first combat sim ever in early 2000s and the formula is there. Game or sim, it rocks.


Stay safe