claidemore
Senior Airman
Here is a link to an excellent video on the Yak 1,7 and 9.
View: https://www.youtube.com/watch?v=w5aJaKRAsXQ
View: https://www.youtube.com/watch?v=2OZ3jgWGsoQ
View: https://www.youtube.com/watch?v=w5aJaKRAsXQ
View: https://www.youtube.com/watch?v=2OZ3jgWGsoQ