Test Stand 328 is an ambient pressure stand. The stand is 29 ft long, 27 ft wide, and 20 ft tall (8.8 m long, 8.2 m wide, and 6.1 m tall). It can accommodate a maximum test article of 24 ft by 24 ft by 14 ft (7.3 m by 7.3 m by 4.3 m). It is currently being used to dismantle the Peacekeeper 4th stage.
Specifications:
Single position, horizontal firing capability
Ambient test capability
Propellants: N2O4 & Hydrazines
Propellant capability - both propellants are in 750-gal storage/run tanks, can be saturated with helium up to 285 psia, and can be temperature conditioned between 40 and 120 °F (4 and 49 °C)
Catch-and-weigh tanks are available; two aspiration systems are installed
4,995 ft (1522 m) above sea level maximum test article envelope 18 by 18 by 18 ft (5.5 by 5.5 by 5.5 m)
Maximum thrust - 25 K lbf (111 kN)
Retractable building
Articulating test article mount for variable servicing & firing orientation