How do you use the Hover and low speed control indicator?

[foofee]

What are the white lines that grow and shrink?

How do you know if you are moving backward?

[IonicRipper]

If i remember correctly, the lines point towards the way you're moving.

For example: If the lines point to the rear and left, you need to move the cyclic to the front and right to stop moving.

Someone correct me if I'm wrong.

[gabuzomeu]

That's what I understand from this as well..

More details on doppler which is powering this instrument in this thread http://forums.eagle.ru/showthread.php?p=1867810#post1867810

[seikdel]

Gabuzomeu: Excellent doppler guide in that link! That really helped establish what's what for me, and also confirmed my suspicion that the knob behind the copilot is for system tests. Thanks much!

 

Foofee: A line up means you're moving forward, a line down means you're moving back, and line left or right means you're moving in the respective direction. All of those numbers are in km/h. The little crescent gauge on the left tells you your vertical velocity in m/s.

[lorenzoj]

One easy hover trick is to tell yourself to "Pull Up On The White Line"

 

For example if you see a lower white line, lift the tail...... etc

 

Edit: The 3 docs in the link above are all excellent

 

Also the Mi-17 manual inc in the Mi-8 docs folder has lots of good info on this and other systems in the Mi-8

Edited September 28, 2013 by lorenzoj