![](https://www.historynet.com/wp-content/uploads/2020/02/Levine-float-960_640.jpg)
The Columbia “Triad” was designed to be be converted to a ‘landplane’ by removing the centerline float and wing sponsons. (HistoryNet Archives)
The Columbia “Triad” was designed to be be converted to a ‘landplane’ by removing the centerline float and wing sponsons. (HistoryNet Archives)