Image copyright John Angerson.
STS-72 mission training.
Space Shuttle Endeavour (OV-105) at launch pad 39B. It used a cluster of three RS-25 engines with fuel being drawn from the external tank. The engines were used for propulsion during the entirety of the spacecraft‚Äôs ascent, with additional thrust being provided by two solid rocket boosters.
Kennedy Space Center, Florida USA.