Soviet Drum-and-Cable Trim Wheels: TO Position Indicator?

[Charon]

The lack of any sort of trim position indicator in the Soviet planes has always struck me as odd. What's to stop a pilot from accidentally taking off with the wrong trim and losing control?

 

Then I was skimming the Yak-7B's manual:

 

 

"Trim Wheel: elevator is neutral according to marks", or something to that effect. Of course!

 

Similarly, the Il-2: "Проверить управление триммером руля высоты и поставить его во взлетное положение. / Check the control of the elevator trimmer and put it in the takeoff position."

 

 

http://airpages.ru/dc/il2_01.shtml

 

 

 

Similarly, these marks are present on the Yak-3 (at least the new production ones).

 

I can't confirm this was used on all Soviet planes with this style of trim, but it seems so simple and so obvious that I suspect it was ubiquitous. Can anyone confirm?

 

Manuals:

 

https://ww2aircraft.net/forum/threads/il-2-stormovik-manuals.5047/

https://ww2aircraft.net/forum/threads/yakovlev-yak-7-manuals.54616/