Toriy

IRL there are 2 levers - in the 1st cabin and in the 2nd (Instructor cabin). The lever in the second cabin is a command lever. If the 2nd lever is down or up the 1st lever will not work. Only if the 2nd lever is neutral the pilot from the 1st cabin can retract or lower the landing gear. So, if in the Yak-52 module the 2nd lever is neutral and 1st pilot retracts the gear - they must retract. But if in the 2nd cabin the lever is down, the first one must not work - if you move it up the gear shall stay lowered.

There are 2 modifications - АЧС-1К (painted white for cockpits with red and white lights) АЧС-1Б (painted with green fluorescent). And АЧС-1МН has electric connection for internal red or white lightning. They also have an electric heater which automatically switches ON if the temperature drops below -5C and switches OFF if the temperature is more than 25C. АЧС-1МН, Russian text, sorry. http://www.measurement.ru/gk/vremya/03/07.htm

Классные видео. А как вы сделали что самолёт вокруг камеры на крыле вращается? Камера с гироскопом, что-ли?

А зачем в передней кабине на РУСе кнопка клапана растормаживания?

This AI was called in some books as a "fighter type" AI. Imagine, that the "bird" on the AI is a plane flying in front of you. If you start your climb, the plane goes down. And the blue and brown colours are just to tell you is your plane climbing or descending. The idea was to synchronize the picture on the AI and on the gunsight when you follow a plane.