The Saturn V's Rocketdyne J-2 engines had to push more than 300,000 pounds of propellant and gear, along with the Lunar and Service Modules plus the Apollo command crew. To achieve this ...

See some impressive images of the Saturn S-4B Battleship Test shown in ... shows just after the ignition of the 200,000 lb. thrust J-2 engine, flame, and steam can be seen beginning to roll ...