Bf 109 K-4 instability and stability

[Yo-Yo]

Ок. 109 was tested in two conditions: 100% fuel with full rear tank and 25% with rear tank empty.

Climb test

Edited April 9, 2020 by Yo-Yo

[Yo-Yo]

Gliding test

[Yo-Yo]

Gliding with flaps down.

[Yo-Yo]

25% fuel, rear tank empty, climb

[Yo-Yo]

25% fuel, rear tank empty, gliding

[Yo-Yo]

25% fuel, rear tank empty, gliding, flaps down

[.Tigre.]

Hello Yo-Yo, allow me a question, how come the propeller disk no longer appears in the 109K as you can clearly see also in the screens you posted?

 

This situation has been around for some time now and this airplane is the only WWII airplane in DCS to present this really annoying problem, are you aware of it?

 

Thank you very much for the attention :)

 

 

 

:thumbup:

[lt_d4n]

Hello,

Is there a suitable engine configuration for climbing and that the plane is not so unstable?
At low speeds on the ascent, I notice that you have to make a lot of stick movements to make it more or less stable.

and another rookie question, do the rudders influence the stability or just so that the plane does not slide?

 

thks

Edited January 25, 2021 by lt_d4n

[grafspee]

2 hours ago, lt_d4n said:

Hello,

Is there a suitable engine configuration for climbing and that the plane is not so unstable?
At low speeds on the ascent, I notice that you have to make a lot of stick movements to make it more or less stable.

and another rookie question, do the rudders influence the stability or just so that the plane does not slide?

 

thks

 

Rudder influence planes stability. Side slip is reducing lift generated by wings. So plane need higher AOA to maintain level flight, Higher AOA = higher induced drag.

All sort of bad things happening in side slip.

Reducing cooling capability of cooling system. 

Induce higher stress on air frame.

Increasing stall speed especially accelerated stalls are more likely to happen in side slip.

Edited January 25, 2021 by grafspee