![](https://www.historynet.com/wp-content/uploads/2021/01/ha137-hornet960_640.jpg)
With the perferred BMW XV engine unavailable, Vogt submitted his design with a license built Pratt & Whitney Hornet radial engine. (HistoryNet Archives)
With the perferred BMW XV engine unavailable, Vogt submitted his design with a license built Pratt & Whitney Hornet radial engine. (HistoryNet Archives)