Barnstorm and Flat-hat

Barnstorm verb - Appear at county fairs and carnivals as a stunt flier and parachute jumper.

Flat-hat and barnstorm are semantically related In some cases you can use "Flat-hat" instead a verb "Barnstorm".

Flat-hat verb - Fly very close to the ground.

Barnstorm and flat-hat are semantically related in take to the air topic. Sometimes you can use "Barnstorm" instead a verb phrase "Flat-hat".