A few years ago I had the good fortune of working with ATK - a company out in Promontory, Utah that makes the solid-rocket-propellant boosters for the NASA space shuttle. Watching these marvels of engineering being manufactured was awe-inspiring.
Unfortunately, I missed out on the true spectacle of the manufacturing process. Every once in a while ATK test fires a booster in Utah to make sure that everything operates according to spec. They test fire by pointing the booster into a large cement block in the ground and letting it rip. For 123 seconds the booster scorches everything within several hundred yards and knocks viewers off their feet. Unlike at Kennedy Space Center, where viewers are 6 miles away across the water and the boosters shoot up into the sky, at ATK viewers are within 1.5 miles of the rocket and the booster is on the ground for the whole burn.
Sad to hear that the booster program did its last test burn - and even sadder that I never had a chance to see one. There’s always the possibility that they’ll start test-burning the Atlas boosters sometime soon!
NASA’s Space Shuttle Program conducted the final test firing of a reusable solid rocket motor Feb. 25 in Promontory, Utah. The flight support motor, or FSM-17, burned for approximately 123 seconds—the same time each reusable solid rocket motor burns during an actual space shuttle launch. Preliminary indications show all test objectives were met. After final test data are analyzed, results for each objective will be published in a NASA report.
The test—the 52nd conducted for NASA by ATK Launch Systems, a unit of Alliant Techsystems Inc.—marks the closure of a test program that has spanned more than three decades. The first test was in July 1977. The ATK-built motors have successfully launched the space shuttle into orbit 129 times.
Link here.