The innovative engineers and technicians at Arnold Engineering and Development Center in Tennessee developed a High Speed Fan Facility to verify the viability of the Towed Airborne Plume Simulator to test early warning sensors on military aircraft. TAPS will be carried aloft, towed behind an aircraft, but first USAF wanted to test it on the ground. AEDC journalist Philip Lorenz III reports that the center used off-the-shelf components and cannibalized ducting to construct a temporary HSFF to test TAPS on the ground.
The rate of building B-21 bombers would speed up if the fiscal 2026 defense budget passes. But it remains unclear how much capacity would be added, and whether the Air Force would simply build the bombers faster, or buy more.