The Dayton-Wright RB-1 (Rinehart[note 1] Baumann[note 2] model one), also known simply as the Dayton-Wright Racer was a high wing single-engine monoplane racing aircraft developed in the United States to participate in the 1920 Gordon Bennett Cup air race.

A shorter tapered "racing wing" was installed afterward with leading and trailing edge flaps interconnected with landing gear deployment.

The racing wing produced directional instability requiring small tail fins to be added.

[4] Dismantled and shipped to France, the RB-1 was flown by Howard Rinehart in the 28 September 1920 race, but was forced to withdraw after a cable failure prevented retraction of the gear/flap mechanism,[4][5] allowing the two Nieuport-Delage NiD.29V racers to make a one-two finish.

[6] After the race it was returned to the United States, and is now preserved at the Henry Ford Museum in Dearborn, Michigan.