U.S. Space and Rocket Center Site Index
F-1 Engine Injector Baffle Gallery


Overall view of the injector baffle display.

The sign reads

F-1 Injector Baffle


For a "big, dumb" engine, the F-1 was surprisingly fussy. If fuel and oxidizer didn't enter its combustion chamber in the right way, dangerous pressure fluctuations resulted. This "combustion instability" could rip the metal right off the walls of the chamber.


MSFC and Rocketdyne outfitted the F-1 with a custom-designed injector plate to control the spray of propellants into the chamber. The teams experimented with many designs for the injector — varying the size, angle, and arrangement of the holes. Baffles like the one on display were added to further reduce combustion instability.

Time picture taken Sat Aug 27 10:38:12 2011
Location picture taken Saturn V Hall
Davidson Center for Space Exploration
U.S. Space & Rocket Center
Huntsville, AL
Prev F-1 Engine Injector Baffle Gallery Next