http://science.ksc.nasa.gov/shuttle/missions/51-l/docs/roger...
It was that way in the 80s. If it does not work as planned, but it has not broke yet - it is safe.
http://science.ksc.nasa.gov/shuttle/missions/51-l/docs/roger...
It was that way in the 80s. If it does not work as planned, but it has not broke yet - it is safe.