- Leadership Change: Space Development Agency (SDA) Director Derek Tournear is leaving for a position in academia, with Deputy Director Gurpartap „GP” Sandhoo stepping in as acting director.
- SDA’s Maturation: Tournear highlights SDA’s evolution from a startup to a fully operational agency during his six-year tenure.
- Key Achievements: SDA’s successes include demonstrating Link 16 connectivity via satellite, proving missile tracking capabilities from low Earth orbit, and advancing laser communication systems.
- Regrets: Tournear wishes he had embraced the SDA’s integration into the Space Force more readily.
- Future Outlook: Tournear expresses optimism about SDA’s future, emphasizing the importance of supporting the warfighter and navigating the integration of the Space Force’s MILNET communications network.
Details:
Derek Tournear, the director of the Space Development Agency (SDA) since October 2019, is departing the agency to pursue a position at Auburn University. He emphasized that the agency has matured significantly and is now at a good point for a transition.
Successor:
Gurpartap „GP” Sandhoo, the current SDA deputy, will take over as acting director. Tournear praised Sandhoo’s extensive background in active duty and his experience fielding new space capabilities at the Naval Research Laboratory.
Achievements:
Tournear highlighted several key accomplishments during his tenure, including:
- Link 16 Demonstration: Proving that satellites can use Link 16 to transmit targeting data to various weapons platforms, effectively globalizing the regional communication network.
- Missile Tracking: Demonstrating that satellites in low Earth orbit (LEO) can successfully detect and track missiles, challenging previous skepticism.
- Laser Communications: Advancing laser communications systems that serve as the foundation for SDA’s Proliferated Warfighter Space Architecture’s mesh network design.
Regrets:
Tournear admitted that his biggest regret was initially resisting the integration of SDA into the Space Force, recognizing that the Space Force culture was more aligned with SDA’s mindset than he initially anticipated.
Future:
Looking ahead, Tournear expressed optimism about SDA’s future, emphasizing the importance of supporting the warfighter and navigating the integration of the Space Force’s MILNET communications network. He stressed that SDA’s Transport Layer and MILNET serve different but complementary functions.
The Future of SDA and MILNET:
Tournear emphasized that the Space Force is committed to building a transport layer for tactical communication. He also noted that while SDA has been focused on the „Android model” of „open architecture, open standards, and competition,” MILNET may be more akin to the „iPhone model,” where one vendor controls everything.
Advice to Successor:
Tournear advised his successor to remain focused on the warfighter, ensuring that soldiers, sailors, airmen, and marines on the ground receive the capabilities they need to conduct the fight effectively.




































