Скачать или смотреть Ares I - DM-1 Test of 5 Segment Motor - September 10th, 2009 - HD

NASA and industry engineers lit up the Utah sky Thursday with the initial full-scale, full-duration test firing of the first stage motor for the Ares I rocket. The Ares I is a crew launch vehicle in development for NASA's Constellation Program.

ATK Space Systems conducted the successful stationary firing of the five-segment solid development motor 1, or DM-1. ATK Space Systems, a division of Alliant Techsystems of Brigham City, Utah, is the prime contractor for the Ares I first stage. Engineers will use the measurements gathered from the test to evaluate thrust, roll control, acoustics and motor vibrations. This data will provide valuable information as NASA develops the Ares I and Ares V vehicles. Another ground test is planned for summer 2010.

"With this test, we have taken lessons learned from many years of experience in solid rocket motor development and have built on that foundation," said Alex Priskos, first stage manager for Ares Projects at NASA's Marshall Space Flight Center in Huntsville, Ala. "Our team collected data from 650 sensors today to evaluate the motor's performance. This test and those that follow are essential to understanding as many aspects of our motor as possible, including strengths and weaknesses, and ultimately delivering the safest and most reliable motor possible."

This was the second attempt to conduct the two-minute rocket test at ATK's test stand in Promontory, Utah. The first test on Aug. 27 was canceled with 20 seconds left in the countdown because of a problem with a component of the ground controller unit, which sends power to the system that moves the nozzle during the test. Through a detailed investigation, the engineering team pinpointed the problem and replaced the faulty part.