Each episode includes ground footage as well as camera wing footage of actual bombing and fighter sordees. These films were intended to be shown to army air forces personel and not to be shown outside that venue. The condition of the lot is clean. They have seen little use. There are not a lot of lines and only a few splices.
Most episodes are splice-free.
Most run about 20 minutes and are mounted on 800' reels. Chapter 5 is dated 1942 and is the only silent episode. Chapers 9 and 68 have no main titles. 81 ends abruptly. 80's main titles are severe.