Space shuttle Discoverys next mission to launch on March 11March 7th, 2009 - 2:26 pm ICT by ANI
Washington, March 7 (ANI): NASA has announced the official launch date for space shuttle Discoverys STS-119 mission as March 11.
According to a review of Discoverys readiness for flight, NASA managers have announced that Commander Lee Archambault and his six crewmates would be lifting off to the International Space Station (ISS) on March 11.
The launch date was announced following a Flight Readiness Review.
During the meeting, top NASA and contractor managers assessed the risks associated with the mission and determined the shuttles equipment, support systems and procedures are ready for flight.
The review included a formal presentation of the shuttles flow control valve work, initiated after NASA identified damage to a valve on shuttle Endeavour during its November 2008 flight.
Using detailed inspections, there are three valves that have been cleared of crack indications now installed in Discovery to support the STS-119 mission.
The three flow control valves, one for each space shuttle main engine, channel gaseous hydrogen from the engines through the main propulsion system and back to the external fuel tank.
This flow regulation maintains the tanks structural integrity and delivers liquid hydrogen to the engines at the correct pressure.
Discoverys STS-119 flight will deliver the space stations fourth and final set of solar array wings, completing the stations truss, or backbone.
The arrays will provide the electricity to fully power science experiments and support the stations expanded crew of six in May.
The 14-day mission will feature four spacewalks to help install the S6 truss segment to the starboard, or right, side of the station and the deployment of its solar arrays.
The flight will also replace a failed unit for a system that converts urine to potable water. (ANI)
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Tags: external fuel tank, flight readiness, flow control valve, flow control valves, flow regulation, formal presentation, gaseous hydrogen, international space station, lee archambault, liquid hydrogen, main propulsion system, nasa managers, science experiments, shuttle endeavour, solar array wings, solar arrays, space shuttle, space station iss, spacewalks, valve work