Firing Up the Shuttle: 25 Years Since the Last Flight Readiness Firing (Part 2)

Each Flight Readiness Firing (FRF) presented the opportunity to extensively test the Space Shuttle Main Engines (SSMEs) in as close to real-flight operations. Photo Credit: NASA

A quarter-century ago, on 6 April 1992, the roar of three Space Shuttle Main Engines (SSMEs) echoed across the marshy landscape of the Kennedy Space Center (KSC) in […]

Firing Up the Shuttle: 25 Years Since the Last Flight Readiness Firing (Part 1)

Before each orbiter’s maiden voyage, the Space Shuttle Program completed a Flight Readiness Firing (FRF) of the three main engines. The last FRF, by Endeavour, occurred 25 years ago, this week. Photo Credit: NASA

“T-minus 31 seconds…Endeavour’s four redundant computers have primary control of critical vehicle functions for the remainder of the count…”

Twenty-five […]

Firing Up the Shuttle: Looking Back at the Flight Readiness Firings (Part 2)

For the final time in the 30-year shuttle program, Endeavour’s engines blaze for their Flight Readiness Firing (FRF) on 6 April 1992. Photo Credit: NASA

“Three engines up. All going well.”

Thirty years ago, last week, the three Space Shuttle Main Engines (SSMEs) of the orbiter Atlantis roared to life and burned fiercely for […]

Firing Up the Shuttle: Looking Back at the Flight Readiness Firings (Part 1)

Each shuttle was powered by a trio of RS-25 Space Shuttle Main Engines (SSMEs). These were test-fired before each orbiter’s maiden voyage, during the Flight Readiness Firing (FRF). Image Credit: Aerojet Rocketdyne

“And we have a Go for Autosequence Start. Atlantis’ on-board computers now controlling the final sequence.”

Thirty years ago, last week, NASA […]