Curti Zefhir vs Enstrom Helicotper F 28f vs Robinson Helicopters R22 Beta Ii vs Robinson Helicopters R44 Raven I vs Robinson Helicopters R44 Raven Ii vs Robinson Helicopters R66

All seven are light civil rotorcraft, but they fall into two broad categories: small two-seat trainers and larger four- to five-seat utility helicopters. The Curti Zefhir is an ultralight/training-oriented helicopter; it typically offers very short to modest range compared with certified piston and turbine models and is generally limited to two people. The Enstrom F-28F is a certified piston light helicopter aimed at training and private utility; it seats three (pilot plus two passengers) and generally provides moderate range for local and regional flights. The Robinson R22 Beta II is the classic two-seat piston trainer with relatively short-to-moderate range and limited payload, optimized for instruction and low-cost personal flying. The Robinson R44 Raven I and Raven II are four-seat piston helicopters with greater range and useful load than the R22; the Raven II is the later, higher-performance variant and commonly edges the Raven I on capability. The Robinson R66 moves into the light turbine category, typically seating five (pilot plus four) with the longest range of this group and the best combination of speed, payload, and mission flexibility.