Curti Zefhir vs Robinson Helicopters R22 Beta Ii vs Robinson Helicopters R44 Raven I vs Robinson Helicopters R44 Raven Ii

The Curti Zefhir is a light, fixed‑wing sport/trainer airplane, while the Robinson R22 Beta II and the Robinson R44 Raven I/II are light civilian helicopters. In category terms, the Zefhir’s fixed‑wing design generally offers more efficient cruise and typically longer range per unit of fuel than comparable piston helicopters, while the Robinsons prioritize vertical takeoff/landing and low‑speed maneuvering. Passenger capacity differs clearly: the R22 Beta II is a two‑seat helicopter (pilot plus one passenger), whereas both R44 Raven I and R44 Raven II are four‑seat helicopters (pilot plus three passengers), making the R44s better suited to small‑group transport. On range, the Zefhir is generally competitive with or better than these piston helicopters for cross‑country flying, while the R44s typically have more practical range than the smaller R22 due to greater fuel capacity and useful load. Between the R44 variants, the Raven II is broadly similar in mission and seating to the Raven I, with improvements that can translate to better performance and operational flexibility depending on configuration.