The Air Force Materiel Command has selected five semifinalists from more than 90 submissions to the command-wide Spark Tank competition….
![Always Free Access](https://www.aerotechnews.com/wp-content/themes/aerotech-theme/img/in-house-ad-wide.png)
The Air Force Materiel Command has selected five semifinalists from more than 90 submissions to the command-wide Spark Tank competition….