The Rigault RP.01B was a French-built high-wing single-engined ultralight aircraft of the 1950s.

The RP.01B was a one-off aircraft which was designed and built by Monsieur Paul Rigault at Mitry-Mory airfield to the NE of Paris.

[1] The airfield now forms part of the site of Paris-Charles de Gaulle airport.

The aircraft was fitted with high-set wings which were supported by twin struts, a fixed tailwheel undercarriage and a single seat for the pilot owner.

It was powered by a nine-cylinder Salmson 9 ADB air-cooled radial engine.