2 years later, he conducted the first flight of a rocket using liquid propellants (gasoline and LOX).

Goddard began experimenting with liquid-fueled rocket engines in September 1921, using gasoline as fuel and liquid oxygen as an oxidizer, successfully testing the first one a little more than two years later.

On March 16, 1926, he set up his rocket, which he later called Nell, fueled with gasoline and liquid oxygen, on a farm in Auburn, Massachusetts. Goddard designed the rocket with the engine on top and the fuel and oxidizer tanks below, an unusual configuration by modern standards but one he thought would provide more stability. The rocket rose 41 feet in the air during its 2.5-second flight, landing 184 feet away in a cabbage field.