He-111/H2 engine management

[Hiuuz]

Hi!

 

In the He111H2 it looks the engine management is mixed up. The propeller controls are like a DB engine, and the prop.rev. handles controls the supercharger! Also there is controls for the oil radiator what works in H2 but not in H6.

 

I have made 3 videos about the three 111 variants:

https://drive.google.com/drive/folders/1NQKJISF9xisZ2rNb-RJ2-xdgPOOJajI8?usp=sharing

Edited December 18, 2022 by Hiuuz

[Hiuuz]

After a little research in the topic I figured out, I missed some information what I found in the manual.
At the Ju88 was described that there are two variants of the Jumo211. The "B1" with manual prop pitch, and the "F" with automatic prop speed controll.
After that it make sense that the 111H2 has the "B1" and the 111H6 has the "F" version.

 

Besides I found that both in the "111H" variants, the manual supercharger controls not working. In either position switches automatically around 2400m in H2, 3300m in H6. In the manual flashcard pages 46/47 says othervise.

In all three variants supercharger control levers are mixed up.

H2 has oil radiator controls, maybe that is a difference between the Jumo211 B1 <-> F variants. Is that correct?

[Buzzsaw]

The He-111H-2 is an earlier version of the aircraft.  The H-6 is a later type.

 

These have different propellor systems.

 

The H-6 has a constant speed propellor system which is easier to manage.  The propellor is a Junkers VS-11 type.  In this type, you set the engine rpm, and the prop will adjust to keep the rpm constant.  The pilot needs to set the engine rpms to match the guidelines listed in the manuals.

 

The H-2 has a VDM 3.5. (different manufacturer) This propellor is a variable pitch type... manually controlled.  It requires constant adjustment as speed increases/decreases... engine rpm will increase and decrease with adjustment, and also with speed variations... you need to be careful not to exceed maximum engine rpms or to run the engine too long at high rpms.  Again, the pilot needs to set the engine rpms to the guidelines in the manual.

 

Both props are controlled by different levers/knobs and are placed in different locations.