| Launch base | Date | Flight Duration | Experiment | Payload landing place or cause of the failure |
|---|
 Camp Ripley (MN) | 1/6 | --- | COSMIC RAY STUDIES | Preset cut-down automatic device failed.The balloon was lost on the sea. In their route over Kentucky Captain Thomas Mantell died chasing it near Goodman Field. |
| New Brighton (MN) | 2/25 | --- | ---No Data--- | --- No Data --- |
| Camp Ripley (MN) | 3/8 | --- | COSMIC RAY STUDIES | --- No Data --- |
| Chicago (IL) | 3/9 | --- | SEEDS | --- No Data --- |
| Holloman AFB (NM) | 5/10 | 24.5 h | MOGUL | In Val D'Or, Quebec, Canadá |
| Camp Ripley (MN) | 6/16 | --- | UPPER AIR WEATHER INFORMATION | --- No Data --- |
| Chicago (IL) | 10/9 | --- | COSMIC RAY DETECTOR | --- No Data --- |
| Chicago (IL) | 10/13 | --- | SEEDS | --- No Data --- |
| Chicago (IL) | 10/30 | --- | COSMIC RAY DETECTOR | --- No Data --- |
