The engine by itself is really large:
The engine by itself is really large:
Out of the 65 F-1’s that flew, not one of them had any problems. They all burned as expected. Out of the 65 J-2’s that flew, three of them (2 on Apollo 6 and one on Apollo 13) cut out early. They had a slight affect on the expected orbits. They proved to be some of the most reliable poweplants designed, built, and flown. I love watching the tests on Youtube. Raw power on display. And they sounded great.
Huntsville!