The use of high-altitude balloons is becoming ever-more routine for U.S. Army units in the Pacific. The service is pushing to deploy more of these lighter-than-air platforms as a key component of a new persistent surveillance and reconnaissance ecosystem across the region. The same kinds of balloons could also perform these and other missions, including communications relay, electronic warfare, or even launching kinetic strikes, around the globe. This is all underscored by a recent contracting notice about the potential purchase of commercial-off-the-shelf high-altitude balloons, sensor packages, and datalinks connected to SpaceX’s space-based Starlink network.
“This is a commodity requirement for commercial-off-the-shelf (COTS) or modified-COTS high-altitude balloon systems and associated equipment,” according to the contracting notice from the Army’s 921st Contracting Support Battalion, which was posted online earlier this week. “The required supplies and software licenses will be delivered to locations within the INDOPACOM AOR [U.S. Indo-Pacific Command area of responsibility] (specifically Hawaii).”
The notice stresses that the 921st is currently only conducting “market research” and that a “full and open competition” could follow, but is not guaranteed. The battalion is headquartered in Hawaii, but is the Army’s main contracting arm in the Pacific, and has elements spread across the region.
The “commodity requirement” the 921st outlined in the notice includes a call for 15 high-altitude balloons, five each of three different sizes (12-, 16-, and 24-gore). The term gore here refers to the individual segments making up the balloon’s exterior. A greater number typically translates to a larger inflated volume, and, by extension, to higher altitude capability and/or payload capacity. The contracting notice mentions a desired “burst altitude (90k–120k ft class)” for the 24-gore type, but does not otherwise lay out specific performance or payload requirements for any of the balloons.
The notice also includes a call for several different sensor packages, described as follows:
- Five “EO/IR [Electro-optical/infared]” types with “resolution (1080p/4K/MWIR/LWIR); gimbal stabilization; telemetry bandwidth (Starlink/LTE/MPU5); power draw; onboard processing; environmental hardening.”
- Five “Long Wave Infrared” types with “Spectral band (8–14 μm); NETD sensitivity (≤50 mK ideal); optics (germanium lenses, FOV options); thermal stabilization; data interface (Ethernet/SDI/USB-C).”
- Seven “Electronic Sensing” types capable of providing “(RF/EM/atmospheric/SIGINT); frequency coverage; antenna configuration (omni/directional/array); data logging (local vs. downlink); EMI shielding for high-altitude ops.”
The Army would also want eight payload buses with Starlink connectivity and MPU5 radios, as well as seven more with Starlink only. This separately speaks to the growing prevalence of Starlink, and its government-focused cousin, Starshield, across the U.S. military, something TWZ just recently highlighted.
Hellbound and Down 