F-1
F-1 by Rocketdyne: gas generator engine burning RP-1 / LOX (retired). Thrust 6,672 kN at sea level, 7,740.5 kN in vacuum. 70 bar chamber pressure, 263 s specific impulse at sea level, 304 s in vacuum, 8,391 kg dry. Figures from the database's engine record. Drawn to the published length and diameter (Wikipedia); other proportions are estimated.