Aircraft program
Single piston light utility helicopter. Variants are Raven I and Raven II (fuel-injected engine); also R44 Clippers equipped with floats. Includes Robinson Unmanned R44 Airtruck / Sprayhawk (initially developed by Rotor Technologies), and Rotor R220Y (R550 prototype).
The aircraft as engineered: what it is built from, the systems it flies with, and its configuration — each box a theme.
Technical reference compiled with AI research; a value appears only where two independent research passes and a web fact-check agree. Gaps are deliberate.
Supplier geography and market analysis for this program — with an Analytics subscription.
Subscribe| Variant | Launch / first flight | Production end | Notes |
|---|---|---|---|
| Rotor R220Y | / 2022 | Uncrewed helicopter based on the Robinson R22. Used to develop and demonstrate core autonomous flight technologies that will be used on the R550X. | |
| Robinson R44 Raven I | 2000 / 2000 | Production: 13 (2026) GAMA: Robinson Helicopter Company R44 Raven I. Four-seat helicopter, basic version with hydraulic control system and elastomeric tail rotor bearings, includes Clipper I with floats. | |
| Robinson R44 Raven II | 2002 / 2002 | Production: 20 (2026) GAMA: Robinson Helicopter Company R44 Raven II. Upgraded version designed to requirements of FAR Pt 27, includes Clipper II with floats. | |
| Robinson R44 Cadet | 2016 / 2016 | Production: 1 (2026) GAMA: Robinson Helicopter Company R44 Cadet. Based on Raven I with rear seat removed and reconfigured for cargo, tailored for training market, includes variant with floats. | |
| Robinson Unmanned R44 | 2023 / 2024 | Utility UAV based on Robinson R44, equipped to lift heavy loads up to 1,212 lbs (550 kg) in all weather conditions. Flight time of over 3 hours and top speed of 150 mph. Includes agricultural Sprayhawk and cargo Airtruck variants. Formerly Rotor R550X. |
| Robinson Helicopter Company | News | |
| Rotor Technologies, Inc. | News | R220Y / R550X |
The program’s dated history — milestones, contracts, supplier selections and facilities, each linked to its source. Log in to view.
Information on this page is compiled from a variety of published sources; links do not necessarily imply recommendation or confirmation by the airframe manufacturer.
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