Dumb Patrol (1931) - Public Domain Cartoons

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Summary
Bosko, depicted as a pilot in World War I, battles a thuggish pilot and is shot down by the enemy pilot's massive cannon. He lands in the wreck of a home, where he meets Honey. He plays the piano to impress her, but is heard by the enemy pilot. The pilot attempts to shoot him; however Bosko constructs a plane himself and shoots down his enemy.

The reference of at least the second part of the short is to the 1918 film by Charles Chaplin "Shoulder Arms" in which Chaplin enters in the same wreck of a home where he meets Edna Purviance.