Simplify the following text for a Grade 11 native English-speaking person.
Original: For example , an experimental and one-of-a-kind aircraft built by the National Aircraft Corporation based at Watts Airport ( or Bernard 's Airport ) in Beaverton , Oregon and known as the `` Flying Bathtub '' or the `` Dill Pickle '' , is displayed at the Pearson .
Simplified: For example , an experimental and one-of-a-kind aircraft known as the `` flying pickle '' originally based at Watts Airport ( or Bernard 's Airport ) , is shown at the Pearson .