![](https://www.historynet.com/wp-content/uploads/2017/08/Owl-trial-960_640.jpg)
Some of the first O-52s, like this one, underwent trials with the 22nd ZAP (Reserve Air Regiment) and often went straight into service. (HistoryNet Archives)
Some of the first O-52s, like this one, underwent trials with the 22nd ZAP (Reserve Air Regiment) and often went straight into service. (HistoryNet Archives)